¶
Most API methods are supported over the Websocket, HTTP, and MQTT (if configured) transports. File Transfer requests (upload and download) exclusive to HTTP. The Websocket is required to receive server generated events such as gcode responses. For information on how to set up the Websocket, please see the Appendix at the end of this document.
HTTP API Overview¶
Moonraker's HTTP API could best be described as "RESTish". Attempts are made to conform to REST standards, however the dynamic nature of Moonraker's API registration along with the desire to keep consistency between multiple API protocols results in an HTTP API that does not completely adhere to the standard.
Moonraker is capable of parsing request arguments from the both the body
(either JSON or form-data depending on the Content-Type header) and from
the query string. All arguments are grouped together in one data structure,
with body arguments taking precedence over query arguments. Thus
if the same argument is supplied both in the body and in the
query string the body argument would be used. It is left up to the client
developer to decide exactly how they want to provide arguments, however
future API documentation will make recommendations. As of March 1st 2021
this document exclusively illustrates arguments via the query string.
All successful HTTP requests will return a json encoded object in the form of:
{result: <response data>}
Response data is generally an object itself, however for some requests this may simply be an "ok" string.
Should a request result in an error, a standard error code along with an error specific message is returned.
Query string type hints¶
By default all arguments passed via the query string are represented as
strings. Most endpoint handlers know the data type for each of their
arguments, thus they can perform conversion from a string type if necessary.
However some endpoints accept arguments of a "generic" type, thus the
client is responsible for specifying the type if "string" is not desirable.
This is not a problem for websocket requests as the JSON parser can extract
the appropriate type. HTTP requests must provide "type hints" in these
scenarios. Moonraker supplies support for the following query string type hints:
- int
- bool
- float
- json
The json type hint can be specified to pass an array or an object via
the query string. Remember to percent encode the json string so that
the query string is correctly parsed.
Type hints may be specified by post-fixing them to a key, with a ":"
separating the key and the hint. For example, lets assume that we
have a request that takes seconds (integer) and enabled (boolean)
arguments. The query string with type hints might look like:
?seconds:int=120&enabled:bool=true
value argument with which we want to
pass an object, {foo: 21.5, bar: "hello"} might look like:
?value:json=%7B%22foo%22%3A21.5%2C%22bar%22%3A%22hello%22%7D
JSON-RPC API Overview¶
The Websocket and MQTT transports use the JSON-RPC 2.0
protocol. The Websocket transmits JSON-RPC objects in a text frame, whereas MQTT
transmits them in the payload of a topic. When MQTT is configured Moonraker
subscribes to an api request topic. After an api request is processed Moonraker
publishes the return value to a response topic. By default these topics are
{instance_name}/moonraker/api/request and
{instance_name}/moonraker/api/response. The {instance_name} should be a
unique identifier for each instance of Moonraker and defaults to the machine's
host name.
In addition, most JSON-RPC methods are available via the JSONRPC HTTP request.
An encoded request should look something like:
{
"jsonrpc": "2.0",
"method": "API method",
"params": {"arg_one": 1, "arg_two": true},
"id": 354
}
The params field may be left out if the API request takes no arguments.
The id should be a unique value that has no chance of colliding
with other JSON-RPC requests. The method is the API method, as defined
for each API in this document.
Tip
MQTT requests may provide an optional mqtt_timestamp keyword
argument in the params field of the JSON-RPC request. To avoid
potential collisions from time drift it is recommended to specify
the timestamp in microseconds since the Unix Epoch. If provided
Moonraker will use the timestamp to discard duplicate requests.
It is recommended to either provide a timestamp or publish API
requests at a QoS level of 0 or 2.
A successful request will return a response like the following:
{
"jsonrpc": "2.0",
"result": {"res_data": "success"},
"id": 354
}
result will generally contain an object, but as with the HTTP API in some
cases it may simply return a string. The id field will return an id that
matches the one provided by the request.
Requests that result in an error will receive a properly formatted JSON-RPC response:
{
"jsonrpc": "2.0",
"error": {"code": 36000, "message": "Error Message"},
"id": 354
}
The moontest repo includes a basic test interface with example usage for most of the requests below. It also includes a basic JSON-RPC implementation that uses promises to return responses and errors (see json-rpc.js).
Websocket Connections¶
Primary websocket¶
The primary websocket supports Moonraker's JSON-RPC API. Most applications that desire a websocket connection will make use of the primary websocket.
The primary websocket is available at:
ws://host_or_ip:port/websocket`
The primary websocket will remain connected until the application disconnects or Moonraker is shutdown.
Bridge websocket¶
The "bridge" websocket provides a near direct passthrough to Klipper's API Server. Klipper uses its own RPC protocol, which is effectively a simplified version of the JSON-RPC specification. Developers should refer to Klipper's API documentation for details on the protocol and available APIs.
Note
The bridge websocket is described as "near direct passthrough" because
Moonraker handles the ETX (0x03) terminator internally. Applications
can expect to receive complete JSON encoded messages in a text frame
without the ETX terminator. Likewise applications should send JSON encoded
messages without the ETX terminator. Messages may be sent using either
text frames or binary frames.
The bridge websocket provides access to diagnostic APIs that are not generally
suitable for Moonraker's primary connection. These requests stream a
substantial amount of data; bridge connections allow Moonraker to avoid
decoding and re-encoding this data, reducing CPU load on the host. The "dump"
requests, such as motion_report/dump_stepper and adxl345/dump_adxl345, are
examples of APIs that should make use of the bridge websocket.
The bridge websocket is available at:
ws://host_or_ip:port/klippysocket
The availability of bridge connections depends on Klippy's availablility. If Klippy is not running or its API server is not enabled then a bridge websocket connection cannot be established. Established bridge connections will close when Klippy is shutdown or restarted. Such connections will also be closed if Moonraker is restarted or shutdown.
Note
If JWT or API Key authentication is required the application must use a oneshot token when connecting to a bridge socket. Since Moonraker does not decode bridge requests it is not possible to authenticate post connection.
Unix Socket Connection¶
All JSON-RPC APIs available over the Websocket transport are also available
over the Unix Domain Socket connection. Moonraker creates the socket file at
<datapath>/comms/moonraker.sock (ie: ~/printer_data/comms/moonraker.sock).
The Unix Socket expects UTF-8 encoded JSON-RPC byte strings. Each JSON-RPC
request must be terminated with an ETX character (0x03).
The Unix Socket is desirable for front ends and extensions running on the local machine as authentication is not necessary. There should be a small performance improvement due to the simplified transport protocol, however the impact of this is likely negligible.
The moontest repo contains a
python script
to test comms over the unix socket.
Jinja2 Template API Calls¶
Some template options in Moonraker's configuration, such as those in the
button component, may call Moonraker APIs through
the call_method(method_name, kwargs) context function. The call_method
function takes the API's JSON-RPC method name as its first parameter, followed
by a set of keyword arguments as per the method's requirements.
# moonraker.conf
# Query Printer Objects example
[button check_status]
pin: gpio26
on_press:
{% set query_objs = {"toolhead": ["position"], "print_stats": None} %}
# JSON-RPC method is "printer.objects.query", which takes a single "objects"
# argument
{% set status = call_method("printer.objects.query", objects=query_objs) %}
# do something with the value returned from the object query, perhaps
# send a websocket notification or publish a mqtt topic
# Publish button event to MQTT Topic
[button check_status]
pin: gpio26
on_release:
# JSON-RPC method is "server.mqtt.publish"
{% do call_method("server.mqtt.publish",
topic="moonraker/mybutton",
payload="Button Released") %}
Server Administration¶
Query Server Info¶
HTTP request:
GET /server/info
{
"jsonrpc": "2.0",
"method": "server.info",
"id": 9546
}
An object containing various fields that report server state.
{
"klippy_connected": true,
"klippy_state": "ready",
"components": [
"database",
"file_manager",
"klippy_apis",
"machine",
"data_store",
"shell_command",
"proc_stats",
"history",
"octoprint_compat",
"update_manager",
"power"
],
"failed_components": [],
"registered_directories": ["config", "gcodes", "config_examples", "docs"],
"warnings": [
"Invalid config option 'api_key_path' detected in section [authorization]. Remove the option to resolve this issue. In the future this will result in a startup error.",
"Unparsed config section [fake_section] detected. This may be the result of a component that failed to load. In the future this will result in a startup error."
],
"websocket_count": 2,
"moonraker_version": "v0.7.1-105-ge4f103c",
"api_version": [1, 0, 0],
"api_version_string": "1.0.0"
}
Warning
This object also includes plugins and failed_plugins fields that
are now deprecated. They duplicate the information in
components and failed_components, and will be removed in the future.
Note that klippy_state will match the state value received from
/printer/info. The klippy_connected item tracks the state of the
unix domain socket connect to Klippy. The components key will return a list
of enabled components. This can be used by clients to check if an optional
component is available. Optional components that do not load correctly will
not prevent the server from starting, thus any components that failed to load
will be reported in the failed_components field.
The websocket_count field reports the total number of connected websockets.
Get Server Configuration¶
HTTP request:
GET /server/config
{
"jsonrpc": "2.0",
"method": "server.config",
"id": 5616
}
An object containing the server's full configuration. Note that
this includes auxiliary configuration sections not part of moonraker.conf,
for example the update_manager static debian moonraker section.
Options not specified in moonraker.conf with default values are also
included.
{
{
"config": {
"server": {
"host": "0.0.0.0",
"port": 7125,
"ssl_port": 7130,
"enable_debug_logging": true,
"enable_asyncio_debug": false,
"klippy_uds_address": "/tmp/klippy_uds",
"max_upload_size": 210,
"ssl_certificate_path": null,
"ssl_key_path": null
},
"dbus_manager": {},
"database": {
"database_path": "~/.moonraker_database",
"enable_database_debug": false
},
"file_manager": {
"enable_object_processing": true,
"queue_gcode_uploads": true,
"config_path": "~/printer_config",
"log_path": "~/logs"
},
"klippy_apis": {},
"machine": {
"provider": "systemd_dbus"
},
"shell_command": {},
"data_store": {
"temperature_store_size": 1200,
"gcode_store_size": 1000
},
"proc_stats": {},
"job_state": {},
"job_queue": {
"load_on_startup": true,
"automatic_transition": false,
"job_transition_delay": 2,
"job_transition_gcode": "\nM118 Transitioning to next job..."
},
"http_client": {},
"announcements": {
"dev_mode": false,
"subscriptions": []
},
"authorization": {
"login_timeout": 90,
"force_logins": false,
"cors_domains": [
"*.home",
"http://my.mainsail.xyz",
"http://app.fluidd.xyz",
"*://localhost:*"
],
"trusted_clients": [
"192.168.1.0/24"
]
},
"zeroconf": {},
"octoprint_compat": {
"enable_ufp": true,
"flip_h": false,
"flip_v": false,
"rotate_90": false,
"stream_url": "/webcam/?action=stream",
"webcam_enabled": true
},
"history": {},
"secrets": {
"secrets_path": "~/moonraker_secrets.ini"
},
"mqtt": {
"address": "eric-work.home",
"port": 1883,
"username": "{secrets.mqtt_credentials.username}",
"password_file": null,
"password": "{secrets.mqtt_credentials.password}",
"mqtt_protocol": "v3.1.1",
"instance_name": "pi-debugger",
"default_qos": 0,
"status_objects": {
"webhooks": null,
"toolhead": "position,print_time",
"idle_timeout": "state",
"gcode_macro M118": null
},
"api_qos": 0,
"enable_moonraker_api": true
},
"template": {}
},
"orig": {
"DEFAULT": {},
"server": {
"enable_debug_logging": "True",
"max_upload_size": "210"
},
"file_manager": {
"config_path": "~/printer_config",
"log_path": "~/logs",
"queue_gcode_uploads": "True",
"enable_object_processing": "True"
},
"machine": {
"provider": "systemd_dbus"
},
"announcements": {},
"job_queue": {
"job_transition_delay": "2.",
"job_transition_gcode": "\nM118 Transitioning to next job...",
"load_on_startup": "True"
},
"authorization": {
"trusted_clients": "\n192.168.1.0/24",
"cors_domains": "\n*.home\nhttp://my.mainsail.xyz\nhttp://app.fluidd.xyz\n*://localhost:*"
},
"zeroconf": {},
"octoprint_compat": {},
"history": {},
"secrets": {
"secrets_path": "~/moonraker_secrets.ini"
},
"mqtt": {
"address": "eric-work.home",
"port": "1883",
"username": "{secrets.mqtt_credentials.username}",
"password": "{secrets.mqtt_credentials.password}",
"enable_moonraker_api": "True",
"status_objects": "\nwebhooks\ntoolhead=position,print_time\nidle_timeout=state\ngcode_macro M118"
}
},
"files": [
{
"filename": "moonraker.conf",
"sections": [
"server",
"file_manager",
"machine",
"announcements",
"job_queue",
"authorization",
"zeroconf",
"octoprint_compat",
"history",
"secrets"
]
},
{
"filename": "include/extras.conf",
"sections": [
"mqtt"
]
}
]
}
}
Request Cached Temperature Data¶
HTTP request:
GET /server/temperature_store?include_monitors=false
{
"jsonrpc": "2.0",
"method": "server.temperature_store",
"params": {
"include_monitors": false
},
"id": 2313
}
Parameters:
include_monitors: Optional, defaults tofalse. When set totruethe response will include sensors reported astemperature monitorsby Klipper. A temperature monitor may reportnullvalues in thetemperaturesfield, applications should be sure that they are modified to handle this condition before settinginlcude_monitorstotrue.
Returns:
An object where the keys are the available temperature sensor names, and with the value being an array of stored temperatures. The array is updated every 1 second by default, containing a total of 1200 values (20 minutes). The array is organized from oldest temperature to most recent (left to right). Note that when the host starts each array is initialized to 0s.
{
"extruder": {
"temperatures": [21.05, 21.12, 21.1, 21.1, 21.1],
"targets": [0, 0, 0, 0, 0],
"powers": [0, 0, 0, 0, 0]
},
"temperature_fan my_fan": {
"temperatures": [21.05, 21.12, 21.1, 21.1, 21.1],
"targets": [0, 0, 0, 0, 0],
"speeds": [0, 0, 0, 0, 0],
},
"temperature_sensor my_sensor": {
"temperatures": [21.05, 21.12, 21.1, 21.1, 21.1]
}
}
Request Cached GCode Responses¶
HTTP request:
GET /server/gcode_store?count=100
{
"jsonrpc": "2.0",
"method": "server.gcode_store",
"params": {
"count": 100
},
"id": 7643}
The count argument is optional, limiting number of returned items
in the response to the value specified. If omitted, the entire gcode
store will be returned (up to 1000 responses).
Returns:
An object with the field gcode_store that contains an array
of objects. Each object will contain message, time, and
type fields. The time field is reported in Unix Time.
The type field will either be command or response.
{
"gcode_store": [
{
"message": "FIRMWARE_RESTART",
"time": 1615832299.1167388,
"type": "command"
},
{
"message": "// Klipper state: Ready",
"time": 1615832309.9977088,
"type": "response"
},
{
"message": "M117 This is a test",
"time": 1615834094.8662775,
"type": "command"
},
{
"message": "G4 P1000",
"time": 1615834098.761729,
"type": "command"
},
{
"message": "STATUS",
"time": 1615834104.2860553,
"type": "command"
},
{
"message": "// Klipper state: Ready",
"time": 1615834104.3299904,
"type": "response"
}
]
}
Rollover Logs¶
Requests a manual rollover for log files registered with Moonraker's
log management facility. Currently these are limited to moonraker.log
and klippy.log.
HTTP request:
POST /server/logs/rollover
Content-Type: application/json
{
"application": "moonraker"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.logs.rollover",
"params": {
"application": "moonraker"
},
"id": 4656
}
Parameters:
application- (Optional) The name of the application to rollover. Currently can bemoonrakerorklipper. The default is to rollover all logs.
Note
Moonraker must be able to manage Klipper's systemd service to perform a manual rollover. The rollover will fail under the following conditions:
- Moonraker cannot detect Klipper's systemd unit
- Moonraker cannot detect the location of Klipper's files
- A print is in progress
Returns: An object in the following format:
{
"rolled_over": [
"moonraker",
"klipper"
],
"failed": {}
}
rolled_over- An array of application names successfully rolled over.failed- An object containing information about failed applications. The key will match an application name and its value will be an error message.
Restart Server¶
HTTP request:
POST /server/restart
{
"jsonrpc": "2.0",
"method": "server.restart",
"id": 4656
}
ok upon receipt of the restart request. After the request
is returns, the server will restart. Any existing connection
will be disconnected. A restart will result in the creation
of a new server instance where the configuration is reloaded.
Identify Connection¶
This method provides a way for persistent clients to identify themselves to Moonraker. This information may be used by Moonraker perform an action or present information based on if a specific client is connected. Currently this method is only available to websocket and unix socket connections. Once this endpoint returns success it cannot be called again, repeated calls will result in an error.
HTTP request: Not Available
JSON-RPC request (Websocket/Unix Socket Only):
{
"jsonrpc": "2.0",
"method": "server.connection.identify",
"params": {
"client_name": "moontest",
"version": "0.0.1",
"type": "web",
"url": "http://github.com/arksine/moontest",
"access_token": "<base64 encoded token>",
"api_key": "<system API key>"
},
"id": 4656
}
Parameters:
client_name: (required) The name of your client, such asMainsail,Fluidd,KlipperScreen,MoonCord, etc.version: (required) The current version of the connected clienttype: (required) Application type. May be one ofweb,mobile,desktop,display,bot,agentorother. These should be self explanatory, useotherif your client does not fit any of the prescribed options.url: (required) The url for your client's homepageaccess_token: (optional) A JSON Web Token that may be used to assign a logged in user to the connection. See the authorization section for APIs used to create and refresh the access token.api_key:. (optional) The system API Key. This key may be used to grant access to clients that do not wish to implement user authentication. Note that if theaccess_tokenis also supplied then this parameter will be ignored.
Note
When identifying as an agent, only one instance should be connected
to Moonraker at a time. If multiple agents of the same client_name
attempt to identify themselves this endpoint will return an error.
See the extension APIs for more information about
agents.
Returns:
The connection's unique identifier.
{
"connection_id": 1730367696
}
Get Websocket ID¶
Warning
This method is deprecated. Please use the identify endpoint to retrieve the Websocket's UID
HTTP request: Not Available
JSON-RPC request (Websocket/Unix Socket Only):
{
"jsonrpc": "2.0",
"method": "server.websocket.id",
"id": 4656
}
The connected websocket's unique identifier.
{
"websocket_id": 1730367696
}
JSON-RPC over HTTP¶
Exposes the JSON-RPC interface over HTTP. All JSON-RPC methods with corresponding HTTP APIs are available. Methods exclusive to other transports, such as Identify Connection, are not available.
HTTP request:
POST /server/jsonrpc
Content-Type: application/json
{
"jsonrpc": "2.0",
"method": "printer.info",
"id": 5153
}
Note
If authentication is required it must be part of the HTTP request,
either using the API Key Header (X-Api-Key) or JWT Bearer Token.
Returns:
The full JSON-RPC response.
{
"jsonrpc": "2.0",
"id": 5153,
"result": {
"state": "ready",
"state_message": "Printer is ready",
"hostname": "my-pi-hostname",
"software_version": "v0.9.1-302-g900c7396",
"cpu_info": "4 core ARMv7 Processor rev 4 (v7l)",
"klipper_path": "/home/pi/klipper",
"python_path": "/home/pi/klippy-env/bin/python",
"log_file": "/tmp/klippy.log",
"config_file": "/home/pi/printer.cfg",
}
}
Note
This request will never return an HTTP error. When an error is encountered a JSON-RPC error response will be returned.
Printer Administration¶
Get Klippy host information¶
HTTP Request:
GET /printer/info
{
"jsonrpc": "2.0",
"method": "printer.info",
"id": 5445
}
An object containing the build version, cpu info, Klippy's current state.
{
"state": "ready",
"state_message": "Printer is ready",
"hostname": "my-pi-hostname",
"software_version": "v0.9.1-302-g900c7396",
"cpu_info": "4 core ARMv7 Processor rev 4 (v7l)",
"klipper_path": "/home/pi/klipper",
"python_path": "/home/pi/klippy-env/bin/python",
"log_file": "/tmp/klippy.log",
"config_file": "/home/pi/printer.cfg",
}
Emergency Stop¶
HTTP request:
POST /printer/emergency_stop
{
"jsonrpc": "2.0",
"method": "printer.emergency_stop",
"id": 4564
}
Note
This endpoint will immediately halt the printer and put it in a "shutdown"
state. It should be used to implement an "emergency stop" button and
also used if a user enters M112(emergency stop) via a console.
Returns:
ok
Host Restart¶
HTTP request:
POST /printer/restart
{
"jsonrpc": "2.0",
"method": "printer.restart",
"id": 4894
}
ok
Firmware Restart¶
HTTP request:
POST /printer/firmware_restart
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "printer.firmware_restart",
"id": 8463
}
ok
Printer Status¶
List available printer objects¶
HTTP request:
GET /printer/objects/list
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "printer.objects.list",
"id": 1454
}
Returns:
An array of "printer objects" that are currently available for query
or subscription. This list will be passed in an objects parameter.
{
"objects": ["gcode", "toolhead", "bed_mesh", "configfile",...]
}
Query printer object status¶
HTTP request:
GET /printer/objects/query?gcode_move&toolhead&extruder=target,temperature
gcode_move and toolhead
attributes. Only the temperature and target attributes are requested
for the extruder.
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "printer.objects.query",
"params": {
"objects": {
"gcode_move": null,
"toolhead": ["position", "status"]
}
},
"id": 4654
}
Note
A null value will fetch all available attributes for its key.
Returns:
An object where the top level items are "eventtime" and "status". The "status" item contains data about the requested update.
{
"eventtime": 578243.57824499,
"status": {
"gcode_move": {
"absolute_coordinates": true,
"absolute_extrude": true,
"extrude_factor": 1,
"gcode_position": [0, 0, 0, 0],
"homing_origin": [0, 0, 0, 0],
"position": [0, 0, 0, 0],
"speed": 1500,
"speed_factor": 1,
},
"toolhead": {
"position": [0, 0, 0, 0],
"status": "Ready"
}
}
}
Subscribe to printer object status¶
HTTP request:
POST /printer/objects/subscribe?connection_id=123456789&gcode_move&extruder`
Note
The HTTP API requires that a connection_id is passed via the query
string or as part of the form. This should be the
ID reported from a currently connected websocket. A
request that includes only the connection_id argument will cancel the
subscription on the specified websocket.
This request is not available over MQTT as it can not be set per client.
Instead MQTT can publish printer status by setting the status_objects
option in the [mqtt] section.
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "printer.objects.subscribe",
"params": {
"objects": {
"gcode_move": null,
"toolhead": ["position", "status"]
}
},
"id": 5434
}
Note
If objects is set to an empty object then the subscription will
be cancelled.
Returns:
Status data for objects in the request, with the format matching that of
the /printer/objects/query:
{
"eventtime": 578243.57824499,
"status": {
"gcode_move": {
"absolute_coordinates": true,
"absolute_extrude": true,
"extrude_factor": 1,
"gcode_position": [0, 0, 0, 0],
"homing_origin": [0, 0, 0, 0],
"position": [0, 0, 0, 0],
"speed": 1500,
"speed_factor": 1,
},
"toolhead": {
"position": [0, 0, 0, 0],
"status": "Ready"
}
}
}
See Klipper's status reference for details on the printer objects available for subscription.
Status updates for subscribed objects are sent asynchronously over the websocket. See the notify_status_update notification for details.
Query Endstops¶
HTTP request:
GET /printer/query_endstops/status
{
"jsonrpc": "2.0",
"method": "printer.query_endstops.status",
"id": 3456
}
An object containing the current endstop state, where each field is an endstop identifier, with a string value of "open" or "TRIGGERED".
{
"x": "TRIGGERED",
"y": "open",
"z": "open"
}
GCode APIs¶
Run a gcode:¶
HTTP request:
POST /printer/gcode/script?script=G28
{
"jsonrpc": "2.0",
"method": "printer.gcode.script",
"params": {
"script": "G28"
},
"id": 7466}
Warning
When M112(emergency stop) is requested via this endpoint it will not
immediately stop the printer. M112 will be placed on the gcode queue and
executed after all previous gcodes are complete. If a client detects
M112 via user input (such as a console) it should request the
/printer/emergency_stop endpoint to immediately halt the printer. This
may be done in addition to sending the M112 gcode if desired.
Returns:
ok when the gcode has completed execution.
Get GCode Help¶
HTTP request:
GET /printer/gcode/help
{
"jsonrpc": "2.0",
"method": "printer.gcode.help",
"id": 4645
}
Returns:
An object where they keys are gcode handlers and values are the associated help strings. Note that help strings are not available for default gcode handlers such as G1, G28, etc, nor are they available for extended handlers that failed to register a description in Klippy.
{
"RESTORE_GCODE_STATE": "Restore a previously saved G-Code state",
"PID_CALIBRATE": "Run PID calibration test",
"QUERY_ADC": "Report the last value of an analog pin",
"TUNING_TOWER": "Tool to adjust a parameter at each Z height",
"SAVE_CONFIG": "Overwrite config file and restart",
"SET_DISPLAY_GROUP": "Set the active display group",
"SAVE_GCODE_STATE": "Save G-Code coordinate state",
"SET_PRESSURE_ADVANCE": "Set pressure advance parameters",
"SET_GCODE_OFFSET": "Set a virtual offset to g-code positions",
"BED_TILT_CALIBRATE": "Bed tilt calibration script",
...
}
Print Management¶
Print a file¶
HTTP request:
POST /printer/print/start?filename=test_print.gcode
{
"jsonrpc": "2.0",
"method": "printer.print.start",
"params": {
"filename": "test_pring.gcode"
},
"id": 4654
}
ok
Pause a print¶
HTTP request:
POST /printer/print/pause
{
"jsonrpc": "2.0",
"method": "printer.print.pause",
"id": 4564
}
ok
Resume a print¶
HTTP request:
POST /printer/print/resume
{
"jsonrpc": "2.0",
"method": "printer.print.resume",
"id": 1465
}
ok
Cancel a print¶
HTTP request:
POST /printer/print/cancel
{
"jsonrpc": "2.0",
"method": "printer.print.cancel",
"id": 2578
}
ok
Machine Requests¶
Get System Info¶
HTTP request:
GET /machine/system_info
{
"jsonrpc": "2.0",
"method": "machine.system_info",
"id": 4665
}
{
"system_info": {
"cpu_info": {
"cpu_count": 4,
"bits": "32bit",
"processor": "armv7l",
"cpu_desc": "ARMv7 Processor rev 4 (v7l)",
"serial_number": "b898bdb4",
"hardware_desc": "BCM2835",
"model": "Raspberry Pi 3 Model B Rev 1.2",
"total_memory": 945364,
"memory_units": "kB"
},
"sd_info": {
"manufacturer_id": "03",
"manufacturer": "Sandisk",
"oem_id": "5344",
"product_name": "SU32G",
"product_revision": "8.0",
"serial_number": "46ba46",
"manufacturer_date": "4/2018",
"capacity": "29.7 GiB",
"total_bytes": 31914983424
},
"distribution": {
"name": "Raspbian GNU/Linux 10 (buster)",
"id": "raspbian",
"version": "10",
"version_parts": {
"major": "10",
"minor": "",
"build_number": ""
},
"like": "debian",
"codename": "buster"
},
"available_services": [
"klipper",
"klipper_mcu",
"moonraker"
],
"instance_ids": {
"moonraker": "moonraker",
"klipper": "klipper"
},
"service_state": {
"klipper": {
"active_state": "active",
"sub_state": "running"
},
"klipper_mcu": {
"active_state": "active",
"sub_state": "running"
},
"moonraker": {
"active_state": "active",
"sub_state": "running"
}
},
"virtualization": {
"virt_type": "none",
"virt_identifier": "none"
},
"python": {
"version": [
3,
7,
3,
"final",
0
],
"version_string": "3.7.3 (default, Jan 22 2021, 20:04:44) [GCC 8.3.0]"
},
"network": {
"wlan0": {
"mac_address": "<redacted_mac>",
"ip_addresses": [
{
"family": "ipv4",
"address": "192.168.1.127",
"is_link_local": false
},
{
"family": "ipv6",
"address": "<redacted_ipv6>",
"is_link_local": false
},
{
"family": "ipv6",
"address": "fe80::<redacted>",
"is_link_local": true
}
]
}
},
"canbus": {
"can0": {
"tx_queue_len": 128,
"bitrate": 500000,
"driver": "mcp251x"
},
"can1": {
"tx_queue_len": 128,
"bitrate": 500000,
"driver": "gs_usb"
}
}
}
}
Note
If no SD Card is detected the sd_info field will contain an empty object.
Shutdown the Operating System¶
HTTP request:
POST /machine/shutdown
{
"jsonrpc": "2.0",
"method": "machine.shutdown",
"id": 4665
}
This request will not return. The machine will shutdown and the socket connection will drop.
Reboot the Operating System¶
HTTP request:
POST /machine/reboot
{
"jsonrpc": "2.0",
"method": "machine.reboot",
"id": 4665
}
This request will not return. The machine will reboot and the socket connection will drop.
Restart a system service¶
Uses: sudo systemctl restart {name}
Services allowed:
crowsnestMoonCordmoonrakermoonraker-telegram-botklipperKlipperScreensonarwebcamd
HTTP request:
POST /machine/services/restart?service={name}
{
"jsonrpc": "2.0",
"method": "machine.services.restart",
"params": {
"service": "{name}"
},
"id": 4656}
Returns:
ok when complete.
Note
If moonraker is chosen, the return
value will be sent prior to the service restart.
Stop a system service¶
Stops a system service via sudo systemctl stop <name>. Currently
only webcamd and klipper are supported.
HTTP request:
POST /machine/services/stop?service={name}
{
"jsonrpc": "2.0",
"method": "machine.services.stop",
"params": {
"service": "{name}"
},
"id": 4645
}
Returns:
ok
Start a system service¶
Starts a system service via sudo systemctl start <name>. Currently
only webcamd and klipper are supported.
HTTP request:
POST /machine/services/start?service={name}
{
"jsonrpc": "2.0",
"method": "machine.services.start",
"params": {
"service": "{name}"
},
"id": 4645
}
Returns:
ok
Get Moonraker Process Stats¶
Returns system usage information about the moonraker process.
HTTP request:
GET /machine/proc_stats
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "machine.proc_stats",
"id": 7896
}
An object in the following format:
{
"moonraker_stats": [
{
"time": 1626612666.850755,
"cpu_usage": 2.66,
"memory": 24732,
"mem_units": "kB"
},
{
"time": 1626612667.8521338,
"cpu_usage": 2.62,
"memory": 24732,
"mem_units": "kB"
}
],
"throttled_state": {
"bits": 0,
"flags": []
},
"cpu_temp": 45.622,
"network": {
"lo": {
"rx_bytes": 113516429,
"tx_bytes": 113516429,
"bandwidth": 3342.68
},
"wlan0": {
"rx_bytes": 48471767,
"tx_bytes": 113430843,
"bandwidth": 4455.91
}
},
"system_cpu_usage": {
"cpu": 2.53,
"cpu0": 3.03,
"cpu1": 5.1,
"cpu2": 1.02,
"cpu3": 1
},
"system_uptime": 2876970.38089603,
"websocket_connections": 4
}
moonraker_stats field
will return up to 30 samples, each sample with the following fields:
time: Time of the sample (in seconds since the Epoch)cpu_usage: A floating point value between 0-100, representing the CPU usage of the Moonraker process.memory: Integer value representing the current amount of memory allocated in RAM (resident set size).mem_units: A string identifying the units of the value in thememoryfield. This is typically "kB", but not guaranteed.
If the system running Moonraker supports vcgencmd then Moonraker
will check the current throttled flags via vcgencmd get_throttled
and report them in the throttled_state field:
bits: An integer value that represents the bits reported byvcgencmd get_throttledflags: Descriptive flags parsed out of the bits. One or more of the following flags may be reported:- "Under-Voltage Detected"
- "Frequency Capped"
- "Currently Throttled"
- "Temperature Limit Active"
- "Previously Under-Volted"
- "Previously Frequency Capped"
- "Previously Throttled"
- "Previously Temperature Limited"
The first four flags indicate an active throttling condition,
whereas the last four indicate a previous condition (may or
may not still be active). If vcgencmd is not available
throttled_state will report null.
If the system reports CPU temp at /sys/class/thermal/thermal_zone0
then temperature will be supplied in the cpu_temp field. Otherwise
the field will be set to null.
If the system reports network statistics at /proc/net/dev then the
network field will contain network statistics. All available interfaces
will be tracked. Each interface reports the following fields:
rx_bytes: total number of bytes received over the interfacetx_bytes: total number of bytes transferred over the interfacebandwidth: estimated current bandwidth used (both rx and tx) in bytes/second
If network information is not available then the network field will
contain an empty object.
If the system reports cpu usage at /proc/stat then the system_cpu_usage
field will contain an object with cpu usage data. The cpu field of this
object reports total cpu usage, while each cpuX field is usage per core.
The websocket_connections field reports the number of active websockets
currently connected to moonraker.
Get Sudo Info¶
Retrieve sudo information status. Optionally checks if Moonraker has permission to run commands as root.
HTTP request:
GET /machine/sudo/info?check_access=false
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "machine.sudo.info",
"params": {
"check_access": false
},
"id": 7896
}
Parameters:
check_access: A boolean value, when set totrueMoonraker will attempt to run a command with elevated permissions. The result will be returned in thesudo_accessfield of the response. Defaults tofalse.
Returns:
An object in the following format:
{
"sudo_access": null,
"linux_user": "pi",
"sudo_requested": false,
"request_messages": []
}
sudo_access: The result of a request to check access. Returnstrueif Moonraker has sudo permission,falseif it does not, andnullifcheck_accessisfalse.linux_user: The current linux user running Moonraker.sudo_requested: Returns true if Moonraker is currently requesting sudo access.request_messages: An array of strings, each string describing a pending sudo request. The array will be empty if no sudo requests are pending.
Set sudo password¶
Sets/updates the sudo password currently used by Moonraker. When the password is set using this endpoint the change is not persistent across restarts. If Moonraker has one or more pending sudo requests they will be processed.
HTTP request:
POST /machine/sudo/password
Content-Type: application/json
{
"password": "linux_user_password"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "machine.sudo.password",
"params": {
"password": "linux_user_password"
},
"id": 7896
}
Parameters:
password: The linux user password used to grant elevated permission. This parameter must be provided.
Returns:
An object in the following format:
{
"sudo_responses": [
"Sudo password successfully set."
],
"is_restarting": false
}
sudo_responses: An array of one or more sudo responses. If there are pending sudo requests each request will provide a response.is_restarting: A boolean value indicating that a sudo request prompted Moonraker to restart its service.
This request will return an error if the supplied password is incorrect or if any pending sudo requests fail.
List USB Devices¶
Returns a list of all USB devices currently detected on the system.
GET /machine/peripherals/usb
{
"jsonrpc": "2.0",
"method": "machine.peripherals.usb",
"id": 7896
}
Example Response
{
"usb_devices": [
{
"device_num": 1,
"bus_num": 1,
"vendor_id": "1d6b",
"product_id": "0002",
"usb_location": "1:1",
"manufacturer": "Linux 6.1.0-rpi7-rpi-v8 dwc_otg_hcd",
"product": "DWC OTG Controller",
"serial": "3f980000.usb",
"class": "Hub",
"subclass": null,
"protocol": "Single TT",
"description": "Linux Foundation 2.0 root hub"
},
{
"device_num": 3,
"bus_num": 1,
"vendor_id": "046d",
"product_id": "0825",
"usb_location": "1:3",
"manufacturer": "Logitech, Inc.",
"product": "Webcam C270",
"serial": "<unique serial number>",
"class": "Miscellaneous Device",
"subclass": null,
"protocol": "Interface Association",
"description": "Logitech, Inc. Webcam C270"
},
{
"device_num": 2,
"bus_num": 1,
"vendor_id": "1a40",
"product_id": "0101",
"usb_location": "1:2",
"manufacturer": "Terminus Technology Inc.",
"product": "USB 2.0 Hub",
"serial": null,
"class": "Hub",
"subclass": null,
"protocol": "Single TT",
"description": "Terminus Technology Inc. Hub"
},
{
"device_num": 5,
"bus_num": 1,
"vendor_id": "0403",
"product_id": "6001",
"usb_location": "1:5",
"manufacturer": "FTDI",
"product": "FT232R USB UART",
"serial": "<unique serial number>",
"class": null,
"subclass": null,
"protocol": null,
"description": "Future Technology Devices International, Ltd FT232 Serial (UART) IC"
},
{
"device_num": 4,
"bus_num": 1,
"vendor_id": "1d50",
"product_id": "614e",
"usb_location": "1:4",
"manufacturer": "Klipper",
"product": "stm32f407xx",
"serial": "<unique serial number>",
"class": "Communications",
"subclass": null,
"protocol": null,
"description": "OpenMoko, Inc. Klipper 3d-Printer Firmware"
}
]
}
Response Schema
Response
| Field | Type | Description |
|---|---|---|
usb_devices |
array | An array of objects containing USB device information. |
USB Device
| Field | Type | Description |
|---|---|---|
bus_num |
int | The USB bus number as reported by the host. |
device_num |
int | The USB device number as reported by the host. |
usb_location |
string | A combination of the bus number and device number, yielding a unique location ID on the host system. |
vendor_id |
string | The vendor ID as reported by the driver. |
product_id |
string | The product ID as reported by the driver. |
manufacturer |
string? | The manufacturer name as reported by the driver. This will be null if no manufacturer is found. |
product |
string? | The product description as reported by the driver. This will be null if no description is found. |
class |
string? | The class description as reported by the driver. This will be null if no description is found. |
subclass |
string? | The subclass description as reported by the driver. This will be null if no description is found. |
protocol |
string? | The protocol description as reported by the driver. This will be null if no description is found. |
description |
string? | The full device description string as reported by the usb.ids file. This will be null if nodescription is found. |
List Serial Devices¶
Returns a list of all serial devices detected on the system. These may be USB CDC-ACM devices or hardware UARTs.
GET /machine/peripherals/serial
{
"jsonrpc": "2.0",
"method": "machine.peripherals.serial",
"id": 7896
}
Example Response
{
"serial_devices": [
{
"device_type": "hardware_uart",
"device_path": "/dev/ttyS0",
"device_name": "ttyS0",
"driver_name": "serial8250",
"path_by_hardware": null,
"path_by_id": null,
"usb_location": null
},
{
"device_type": "usb",
"device_path": "/dev/ttyACM0",
"device_name": "ttyACM0",
"driver_name": "cdc_acm",
"path_by_hardware": "/dev/serial/by-path/platform-3f980000.usb-usb-0:1.2:1.0",
"path_by_id": "/dev/serial/by-id/usb-Klipper_stm32f407xx_unique_serial-if00",
"usb_location": "1:4"
},
{
"device_type": "usb",
"device_path": "/dev/ttyUSB0",
"device_name": "ttyUSB0",
"driver_name": "ftdi_sio",
"path_by_hardware": "/dev/serial/by-path/platform-3f980000.usb-usb-0:1.4:1.0-port0",
"path_by_id": "/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_unique_serial-if00-port0",
"usb_location": "1:5"
},
{
"device_type": "hardware_uart",
"device_path": "/dev/ttyAMA0",
"device_name": "ttyAMA0",
"driver_name": "uart-pl011",
"path_by_hardware": null,
"path_by_id": null,
"usb_location": null
}
]
}
Response Schema
Response
| Field | Type | Description |
|---|---|---|
serial_devices |
array | An array of objects containing serial device information. |
Serial Device
| Field | Type | Description |
|---|---|---|
device_type |
string | The type of serial device. Can be hardware_uart or usb. |
device_path |
string | The absolute file path to the device. |
device_name |
string | The device file name as reported by sysfs. |
driver_name |
string | The name of the device driver. |
path_by_hardware |
string? | A symbolic link to the device based on its physical connection, ie: usb port. Will be null if nomatching link exists. |
path_by_id |
string? | A symbolic link the the device based on its reported IDs. Will be null if no matching link exists. |
usb_location |
string? | An identifier derived from the reported usb bus and . device numbers Can be used to match results from /machine/peripherals/usb. Will be null for non-usbdevices. |
List Video Capture Devices¶
Retrieves a list of V4L2 video capture devices on the system. If the python3-libcamera system package is installed this request will also return libcamera devices.
GET /machine/peripherals/video
{
"jsonrpc": "2.0",
"method": "machine.peripherals.video",
"id": 7896
}
Example Response
{
"v4l2_devices": [
{
"device_name": "video0",
"device_path": "/dev/video0",
"camera_name": "unicam",
"driver_name": "unicam",
"hardware_bus": "platform:3f801000.csi",
"capabilities": [
"VIDEO_CAPTURE",
"EXT_PIX_FORMAT",
"READWRITE",
"STREAMING",
"IO_MC"
],
"version": "6.1.63",
"path_by_hardware": "/dev/v4l/by-path/platform-3f801000.csi-video-index0",
"path_by_id": null,
"alt_name": "unicam-image",
"usb_location": null
},
{
"device_name": "video1",
"device_path": "/dev/video1",
"camera_name": "UVC Camera (046d:0825)",
"driver_name": "uvcvideo",
"hardware_bus": "usb-3f980000.usb-1.1",
"capabilities": [
"VIDEO_CAPTURE",
"EXT_PIX_FORMAT",
"STREAMING"
],
"version": "6.1.63",
"path_by_hardware": "/dev/v4l/by-path/platform-3f980000.usb-usb-0:1.1:1.0-video-index0",
"path_by_id": "/dev/v4l/by-id/usb-046d_0825_66EF0390-video-index0",
"alt_name": "UVC Camera (046d:0825)",
"usb_location": "1:3"
},
{
"device_name": "video14",
"device_path": "/dev/video14",
"camera_name": "bcm2835-isp",
"driver_name": "bcm2835-isp",
"hardware_bus": "platform:bcm2835-isp",
"capabilities": [
"VIDEO_CAPTURE",
"EXT_PIX_FORMAT",
"STREAMING"
],
"version": "6.1.63",
"path_by_hardware": null,
"path_by_id": null,
"alt_name": "bcm2835-isp-capture0",
"usb_location": null
},
{
"device_name": "video15",
"device_path": "/dev/video15",
"camera_name": "bcm2835-isp",
"driver_name": "bcm2835-isp",
"hardware_bus": "platform:bcm2835-isp",
"capabilities": [
"VIDEO_CAPTURE",
"EXT_PIX_FORMAT",
"STREAMING"
],
"version": "6.1.63",
"path_by_hardware": null,
"path_by_id": null,
"alt_name": "bcm2835-isp-capture1",
"usb_location": null
},
{
"device_name": "video21",
"device_path": "/dev/video21",
"camera_name": "bcm2835-isp",
"driver_name": "bcm2835-isp",
"hardware_bus": "platform:bcm2835-isp",
"capabilities": [
"VIDEO_CAPTURE",
"EXT_PIX_FORMAT",
"STREAMING"
],
"version": "6.1.63",
"path_by_hardware": "/dev/v4l/by-path/platform-bcm2835-isp-video-index1",
"path_by_id": null,
"alt_name": "bcm2835-isp-capture0",
"usb_location": null
},
{
"device_name": "video22",
"device_path": "/dev/video22",
"camera_name": "bcm2835-isp",
"driver_name": "bcm2835-isp",
"hardware_bus": "platform:bcm2835-isp",
"capabilities": [
"VIDEO_CAPTURE",
"EXT_PIX_FORMAT",
"STREAMING"
],
"version": "6.1.63",
"path_by_hardware": "/dev/v4l/by-path/platform-bcm2835-isp-video-index2",
"path_by_id": null,
"alt_name": "bcm2835-isp-capture1",
"usb_location": null
}
],
"libcamera_devices": [
{
"libcamera_id": "/base/soc/i2c0mux/i2c@1/ov5647@36",
"model": "ov5647",
"modes": [
{
"format": "SGBRG10_CSI2P",
"resolutions": [
"640x480",
"1296x972",
"1920x1080",
"2592x1944"
]
}
]
},
{
"libcamera_id": "/base/soc/usb@7e980000/usb-port@1/usb-port@1-1.1:1.0-046d:0825",
"model": "UVC Camera (046d:0825)",
"modes": [
{
"format": "MJPEG",
"resolutions": [
"160x120",
"176x144",
"320x176",
"320x240",
"352x288",
"432x240",
"544x288",
"640x360",
"640x480",
"752x416",
"800x448",
"864x480",
"800x600",
"960x544",
"1024x576",
"960x720",
"1184x656",
"1280x720",
"1280x960"
]
},
{
"format": "YUYV",
"resolutions": [
"160x120",
"176x144",
"320x176",
"320x240",
"352x288",
"432x240",
"544x288",
"640x360",
"640x480",
"752x416",
"800x448",
"864x480",
"800x600",
"960x544",
"1024x576",
"960x720",
"1184x656",
"1280x720",
"1280x960"
]
}
]
}
]
}
Response Schema
Response
| Field | Type | Description |
|---|---|---|
v4l2_devices |
array | An array of V4L2 Device objects. |
libcamera_devices |
array | An array of Libcamera Device objects. |
V4L2 Device
| Field | Type | Description |
|---|---|---|
device_name |
string | The V4L2 name assigned to the device. This is typically the name of the file associated with the device. |
device_path |
string | The absolute system path to the device file. |
camera_name |
string | The camera name reported by the device driver. |
driver_name |
string | The name of the driver loaded for the device. |
alt_name |
string? | An alternative device name optionally reported by sysfs. Will be null if the name file does not exist. |
hardware_bus |
string | A description of the hardware location of the device |
capabilities |
array | An array of strings indicating the capabilities the device supports as reported by V4L2. |
version |
string | The device version as reported by V4L2. |
path_by_hardware |
string? | A symbolic link to the device based on its physical connection, ie: usb port.. Will be null if nomatching link exists. |
path_by_id |
string? | A symbolic link the the device based on its reported ID. Will be null if no matching link exists. |
usb_location |
string? | An identifier derived from the reported usb bus and device numbers. Will be null for non-usb devices. |
Libcamera Device
| Field | Type | Description |
|---|---|---|
libcamera_id |
string | The ID of the device as reported by libcamera. |
model |
string | The model name of the device. |
modes |
array | An array of Libcamera Mode objects, each describing amode supported by the device. |
Libcamera Mode
| Field | Type | Description |
|---|---|---|
format |
string | The pixel format of the mode. |
resolutions |
array | An array of strings describing the resolutions supported by the mode. Each entry is reported as <WIDTH>x<HEIGHT> |
Query Unassigned Canbus UUIDs¶
Queries the provided canbus interface for unassigned Klipper or Katapult node IDs.
Warning
It is recommended that frontends provide users with an explanation of how UUID queries work and the potential pitfalls when querying a bus with multiple unassigned nodes. An "unassigned" node is a CAN node that has not been activated by Katapult or Klipper. If either Klipper or Katapult has connected to the node, it will be assigned a Node ID and therefore will no longer respond to queries. A device reset is required to remove the assignment.
When multiple unassigned nodes are on the network, each responds to the query at roughly the same time. This results in arbitration errors. Nodes will retry the send until the response reports success. However, nodes track the count of arbitration errors, and once a specific threshold is reached they will go into a "bus off" state. A device reset is required to reset the counter and recover from "bus off".
For this reason, it is recommended that users only issue a query when a single unassigned node is on the network. If a user does wish to query multiple unassigned nodes it is vital that they reset all nodes on the network before running Klipper.
GET /machine/peripherals/canbus?interface=can0
{
"jsonrpc": "2.0",
"method": "machine.peripherals.canbus",
"params": {
"interface": "can0"
},
"id": 7896
}
Parameters
| Name | Type | Description |
|---|---|---|
interface |
string | The cansocket interface to query. Default is can0. |
Example Response
{
"can_uuids": [
{
"uuid": "11AABBCCDD",
"application": "Klipper"
}
]
}
Response Schema
Response
| Field | Type | Description |
|---|---|---|
can_uuids |
array | An array of discovered CAN UUID objects, or an empty array if no unassigned CAN nodes are found. |
Can UUID
| Field | Type | Description |
|---|---|---|
uuid |
string | The UUID of the unassigned node. |
application |
string | The name of the application running on the unassigned Node. Should be "Klipper" or "Katapult". |
File Operations¶
Most file operations are available over both APIs, however file upload and file download are currently only available via HTTP APIs.
Moonraker organizes local directories into "roots". For example,
gcodes are located at http:\\host\server\files\gcodes\*, otherwise known
as the "gcodes" root. The following roots are available:
- gcodes
- config
- config_examples (read-only)
- docs (read-only)
Write operations (upload, delete, make directory, remove directory) are
only available on the gcodes and config roots. Note that the config root
is only available if the config_path option has been set in Moonraker's
configuration.
List available files¶
Walks through a directory and fetches all files. All file names include a
path relative to the specified root.
HTTP request:
GET /server/files/list?root={root_folder}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.files.list",
"params": {
"root": "{root_folder}"
},
"id": 4644
}
Tip
If the root argument is omitted the request will default to
the gcodes root.
Note
The gcodes root will only return files with valid gcode
extensions.
Returns: A list of objects, where each object contains file data.
[
{
"path": "3DBenchy_0.15mm_PLA_MK3S_2h6m.gcode",
"modified": 1615077020.2025201,
"size": 4926481,
"permissions": "rw"
},
{
"path": "Shape-Box_0.2mm_PLA_Ender2_20m.gcode",
"modified": 1614910966.946807,
"size": 324236,
"permissions": "rw"
},
{
"path": "test_dir/A-Wing.gcode",
"modified": 1605202259,
"size": 1687387,
"permissions": "rw"
},
{
"path": "test_dir/CE2_CubeTest.gcode",
"modified": 1614644445.4025,
"size": 1467339,
"permissions": "rw"
},
{
"path": "test_dir/V350_Engine_Block_-_2_-_Scaled.gcode",
"modified": 1615768477.5133543,
"size": 189713016,
"permissions": "rw"
},
]
List registered roots¶
Reports all "root" directories registered with Moonraker. Information such as location on disk and permissions are included.
HTTP request:
GET /server/files/roots
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.files.roots",
"id": 4644
}
Returns: A list of objects, where each object contains file data:
[
{
"name": "config",
"path": "/home/pi/printer_data/config",
"permissions": "rw"
},
{
"name": "logs",
"path": "/home/pi/printer_data/logs",
"permissions": "r"
},
{
"name": "gcodes",
"path": "/home/pi/printer_data/gcodes",
"permissions": "rw"
},
{
"name": "config_examples",
"path": "/home/pi/klipper/config",
"permissions": "r"
},
{
"name": "docs",
"path": "/home/pi/klipper/docs",
"permissions": "r"
}
]
Get GCode Metadata¶
Get metadata for a specified gcode file.
HTTP request:
GET /server/files/metadata?filename={filename}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.files.metadata",
"params": {
"filename": "{filename}"
},
"id": 3545
}
Parameters:
filename: Path to the gcode file, relative to thegcodesroot. For example, if the file is located athttp://host/server/files/gcodes/tools/drill_head.gcode, thefilenameshould be specified astools/drill_head.gcode
Returns:
Metadata for the requested file if it exists. If any fields failed parsing they will be omitted. The metadata will always include the file name, modified time, and size.
{
"print_start_time": null,
"job_id": null,
"size": 4926481,
"modified": 1615077020.2025201,
"slicer": "SuperSlicer",
"slicer_version": "2.2.52",
"layer_height": 0.15,
"first_layer_height": 0.2,
"object_height": 48.05,
"filament_total": 4056.4,
"estimated_time": 7569,
"thumbnails": [
{
"width": 32,
"height": 32,
"size": 2596,
"relative_path": ".thumbs/3DBenchy_0.15mm_PLA_MK3S_2h6m-32x32.png"
},
{
"width": 400,
"height": 300,
"size": 73308,
"relative_path": ".thumbs/3DBenchy_0.15mm_PLA_MK3S_2h6m-400x300.png"
}
],
"first_layer_bed_temp": 60,
"first_layer_extr_temp": 215,
"gcode_start_byte": 79451,
"gcode_end_byte": 4915668,
"filename": "3DBenchy_0.15mm_PLA_MK3S_2h6m.gcode"
}
Note
The print_start_time and job_id fields are initialized to
null. They will be updated for each print job if the user has the
[history] component configured
Scan GCode Metadata¶
Initiate a metadata scan for a selected file. If the file has already been scanned the endpoint will force a rescan
HTTP request:
GET /server/files/metascan?filename={filename}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.files.metascan",
"params": {
"filename": "{filename}"
},
"id": 3545
}
Parameters:
filename: Path to the gcode file, relative to thegcodesroot. For example, if the file is located athttp://host/server/files/gcodes/tools/drill_head.gcode, thefilenameshould be specified astools/drill_head.gcode
Returns:
- An object containing the metadata resulting from the scan, matching the return value of the Get Metdata Endpoint.
Get GCode Thumbnails¶
Returns thumbnail information for a supplied gcode file. If no thumbnail information is available
HTTP request:
GET /server/files/thumbnails?filename={filename}
{
"jsonrpc": "2.0",
"method": "server.files.thumbnails",
"params": {
"filename": "{filename}"
},
"id": 3545
}
Parameters:
filename: Path to the gcode file, relative to thegcodesroot. For example, if the file is located athttp://host/server/files/gcodes/tools/drill_head.gcode, thefilenameshould be specified astools/drill_head.gcode
Returns:
An array of objects containing thumbnail information. If no thumbnail information exists for the specified file then the returned array wil be empty.
[
{
"width": 32,
"height": 32,
"size": 1551,
"thumbnail_path": "test/.thumbs/CE2_FanCover-120mm-Mesh-32x32.png"
},
{
"width": 300,
"height": 300,
"size": 31819,
"thumbnail_path": "test/.thumbs/CE2_FanCover-120mm-Mesh.png"
}
]
Note
This information is the same as reported in the thumbnails field
of a metadata object, with one exception.
The thumbnail_path field in the result above contains a
path relative to the gcodes root, whereas the relative_path
field reported in the metadata is relative to the gcode file's
parent folder.
Get directory information¶
Returns a list of files and subdirectories given a supplied path.
Unlike /server/files/list, this command does not walk through
subdirectories. This request will return all files in a directory,
including files in the gcodes root that do not have a valid gcode
extension.
HTTP request:
GET /server/files/directory?path=gcodes/my_subdir&extended=true
{
"jsonrpc": "2.0",
"method": "server.files.get_directory",
"params": {
"path": "gcodes/my_subdir",
"extended": true
},
"id": 5644
}
Tip
If the path argument is omitted then the command will return
directory information from the gcodes root.
The extended argument is optional and defaults to false. If
supplied and set to true then data returned for gcode files
will also include metadata (if available).
Returns:
An object containing file and subdirectory information in the following format:
{
"dirs": [
{
"modified": 1615768162.0412788,
"size": 4096,
"permissions": "rw",
"dirname": "test"
},
{
"modified": 1613569827.489749,
"size": 4096,
"permissions": "rw",
"dirname": "Cura"
},
{
"modified": 1615767459.6265886,
"size": 4096,
"permissions": "rw",
"dirname": "thumbs"
}
],
"files": [
{
"modified": 1615578004.9639666,
"size": 7300692,
"permissions": "rw",
"filename": "Funnel_0.2mm_PLA_Ender2_2h4m.gcode"
},
{
"modified": 1589156863.9726968,
"size": 4214831,
"permissions": "rw",
"filename": "CE2_Pi3_A+_CaseLID.gcode"
},
{
"modified": 1615030592.7722695,
"size": 2388774,
"permissions": "rw",
"filename": "CE2_calicat.gcode"
},
],
"disk_usage": {
"total": 7522213888,
"used": 4280369152,
"free": 2903625728
},
"root_info": {
"name": "gcodes",
"permissions": "rw"
}
}
Create directory¶
Creates a directory at the specified path.
HTTP request:
POST /server/files/directory?path=gcodes/my_new_dir
{
"jsonrpc": "2.0",
"method": "server.files.post_directory",
"params": {
"path": "gcodes/my_new_dir"
},
"id": 6548
}
Returns: Information about the created directory
{
"item": {
"path": "my_new_dir",
"root": "gcodes",
"modified": 1676983427.3732708,
"size": 4096,
"permissions": "rw"
},
"action": "create_dir"
}
Delete directory¶
Deletes a directory at the specified path.
HTTP request:
DELETE /server/files/directory?path=gcodes/my_subdir&force=false
{
"jsonrpc": "2.0",
"method": "server.files.delete_directory",
"params": {
"path": "gcodes/my_subdir",
"force": false
},
"id": 6545
}
Warning
If the specified directory contains files then the delete request
will fail unless the force argument is set to true.
Returns: Information about the deleted directory
{
"item": {
"path": "my_subdir",
"root": "gcodes",
"modified": 0,
"size": 0,
"permissions": ""
},
"action": "delete_dir"
}
Move a file or directory¶
Moves a file or directory from one location to another. The following conditions must be met for a move successful move:
- The source must exist
- The user (typically "pi") must have the appropriate file permissions
- Neither the source nor destination can be loaded by the
virtual_sdcard. If the source is a directory, it must not contain a file loaded by thevirtual_sdcard.
When specifying the source and dest, the root directory should be
prefixed. Currently the only supported roots for dest are gcodes"
and config".
This API may also be used to rename a file or directory. Be aware that an attempt to rename a directory to a directory that already exists will result in moving the source directory into the destination directory. Also be aware that renaming a file to a file that already exists will result in overwriting the existing file.
HTTP request:
POST /server/files/move?source=gcodes/testdir/my_file.gcode&dest=gcodes/subdir/my_file.gcode
{
"jsonrpc": "2.0",
"method": "server.files.move",
"params": {
"source": "gcodes/testdir/my_file.gcode",
"dest": "gcodes/subdir/my_file.gcode"
},
"id": 5664
}
Returns: Information about the moved file or directory
{
"result": {
"item": {
"root": "gcodes",
"path": "subdir/my_file.gcode",
"modified": 1676940082.8595376,
"size": 384096,
"permissions": "rw"
},
"source_item": {
"path": "testdir/my_file.gcode",
"root": "gcodes"
},
"action": "move_file"
}
}
Note
The item field contains file info for the destination. The source_item
contains the path and root the item was moved from. The action field
will be move_file if the source is a file or move_dir if the source is
a directory.
Copy a file or directory¶
Copies a file or directory from one location to another. A successful copy has
the prerequisites as a move with one exception, a copy may complete if the
source file or directory is loaded by the virtual_sdcard. As with the move
API, the source and dest should have the root prefixed to the path.
HTTP request:
POST /server/files/copy?source=gcodes/my_file.gcode&dest=gcodes/subdir/my_file.gcode
{
"jsonrpc": "2.0",
"method": "server.files.copy",
"params": {
"source": "gcodes/my_file.gcode",
"dest": "gcodes/subdir/my_file.gcode"
},
"id": 5623
}
Returns: Information about the copied file or directory
{
"item": {
"root": "gcodes",
"path": "subdir/my_file.gcode",
"modified": 1676940082.8595376,
"size": 384096,
"permissions": "rw"
},
"action": "create_file"
}
Note
The item field contains file info for the destination. The action field
will be create_file if a new file was created, modify_file if an exiting
file was overwitten, or create_dir if an entire directory was copied.
Create a ZIP archive¶
Creates a zip file consisting of one or more files.
HTTP request:
POST /server/files/zip
Content-Type: application/json
{
"dest": "config/errorlogs.zip",
"items": [
"config/printer.cfg",
"logs",
"gcodes/subfolder"
],
"store_only": false
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.files.zip",
"params": {
"dest": "config/errorlogs.zip",
"items": [
"config/printer.cfg",
"logs",
"gcodes/subfolder"
],
"store_only": false
},
"id": 5623
}
Parameters:
dest- (Optional) - Relative path to the destination zip. The first element of the path must be validrootwith write access. If the path contains subfolders the parent folder must exist. The default isconfig/collection-{timestamp}.zip, where{timestamp}is generated based on the localtime.items- (Required) - An array of relative paths containing files and or folders to include in the archive. Each item must meet the following requirements:- The first element of the item must be a registered
rootwith read access. - Each item must point to a valid file or folder.
- Moonraker must have permission to read the specified files and/or directories.
- If the path is to a directory then all files with read permissions are included. Subfolders are not included recursively.
- The first element of the item must be a registered
store_only- (Optional) - If set totruethen the archive will not compress its contents. Otherwise the traditionaldeflationalgorithm is used to compress the archives contents. The default isfalse.
Returns: An object in the following format:
{
"destination": {
"root": "config",
"path": "errorlogs.zip",
"modified": 1676984423.8892415,
"size": 420,
"permissions": "rw"
},
"action": "zip_files"
}
destination- an object containing the destinationrootand a path to the file relative to the root.action- The file action, will bezip_files
File download¶
Retrieves file filename at root root. The filename must include
the relative path if it is not in the root folder.
HTTP request:
GET /server/files/{root}/{filename}
Returns:
The requested file
File upload¶
Upload a file. Currently files may be uploaded to the gcodes or config
roots, with gcodes being the default. If one wishes to upload
to a subdirectory, the path may be added to the upload's file name
(relative to the root). If the directory does not exist an error will be
returned. Alternatively, the path form argument may be set, as explained
below.
HTTP request:
POST /server/files/upload`
Content-Type: multipart/form-data
------FormBoundaryemap3PkuvKX0B3HH
Content-Disposition: form-data; name="file"; filename="myfile.gcode"
Content-Type: application/octet-stream
<binary data>
------FormBoundaryemap3PkuvKX0B3HH--
The file must be uploaded in the request's body multipart/form-data (ie:
<input type="file">). The following arguments may also be added to the
form-data:
root: The root location in which to upload the file. Currently this may begcodesorconfig. If not specified the default isgcodes.path: This argument may contain a path (relative to the root) indicating a subdirectory to which the file is written. If apathis present the server will attempt to create any subdirectories that do not exist.checksum: A SHA256 hex digest calculated by the client for the uploaded file. If this argument is supplied the server will compare it to its own checksum calculation after the upload has completed. A checksum mismatch will result in a 422 error.
Arguments available only for the gcodes root:
print: If set to "true", Klippy will attempt to start the print after uploading. Note that this value should be a string type, not boolean. This provides compatibility with OctoPrint's upload API.
JSON-RPC request: Not Available
Returns: Information about the uploaded file. Note that print_started
is only included when the supplied root is set to gcodes.
{
"item": {
"path": "Lock Body Shim 1mm_0.2mm_FLEX_MK3S_2h30m.gcode",
"root": "gcodes",
"modified": 1676984527.636818,
"size": 71973,
"permissions": "rw"
},
"print_started": false,
"print_queued": false,
"action": "create_file"
}
File delete¶
Delete a file in the requested root. If the file exists in a subdirectory,
its relative path must be part of the {filename} argument.
HTTP request:
DELETE /server/files/{root}/{filename}
{
"jsonrpc": "2.0",
"method": "server.files.delete_file",
"params": {
"path": "{root}/{filename}"
},
"id": 1323
}
{
"item": {
"path": "Lock Body Shim 1mm_0.2mm_FLEX_MK3S_2h30m.gcode",
"root": "gcodes",
"size": 0,
"modified": 0,
"permissions": ""
},
"action": "delete_file"
}
Download klippy.log¶
Note
Logs are now available in the logs root. Front ends should consider
presenting all available logs using "file manager" type of UI. That said,
If Klipper has not been configured to write logs in the logs root then
this endpoint is available as a fallback.
HTTP request:
GET /server/files/klippy.log
Returns:
The requested file
Download moonraker.log¶
Note
Logs are now available in the logs root. Front ends should consider
presenting all available logs using "file manager" type of UI. That said,
If Moonraker has not been configured to write logs in the logs root then
this endpoint is available as a fallback.
HTTP request:
GET /server/files/moonraker.log
Returns:
The requested file
Authorization¶
The Authorization endpoints are enabled when the user has the
[authorization] component configured in moonraker.conf.
Untrusted clients must use either a JSON Web Token or an API key to access
Moonraker's HTTP APIs. JWTs should be included in the Authorization
header as a Bearer type for each HTTP request. If using an API Key it
should be included in the X-Api-Key header for each HTTP Request.
Websocket authentication can be achieved via the request itself or
post connection. Unlike HTTP requests it is not necessasry to pass a
token and/or API Key to each request. The
identify connection endpoint takes optional
access_token and api_key parameters that may be used to authentiate
a user already logged in, otherwise the login API may be used for
authentication. Websocket connections will stay authenticated until
the connection is closed or the user logs out.
Note
ECMAScript imposes limitations on certain requests that prohibit the
developer from modifying the HTTP headers (ie: The request to open a
websocket, "download" requests that open a dialog). In these cases
it is recommended for the developer to request a oneshot_token, then
send the result via the token query string argument in the desired
request.
Warning
It is strongly recommended that arguments for the below APIs are passed in the request's body.
Login User¶
HTTP Request:
POST /access/login
Content-Type: application/json
{
"username": "my_user",
"password": "my_password",
"source": "moonraker"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.login",
"params": {
"username": "my_user",
"password": "my_password",
"source": "moonraker"
},
"id": 1323
}
Arguments:
- username: The user login name. This argument is required.
- password: The user password. This arugment is required.
- source: The authentication source. Can be moonraker or ldap. The
default is moonraker.
Returns: An object the logged in username, auth token, refresh token, and action summary:
{
"username": "my_user",
"token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4NzY4MDAuNDgxNjU1LCAiZXhwIjogMTYxODg4MDQwMC40ODE2NTUsICJ1c2VybmFtZSI6ICJteV91c2VyIiwgInRva2VuX3R5cGUiOiAiYXV0aCJ9.QdieeEskrU0FrH7rXKuPDSZxscM54kV_vH60uJqdU9g",
"refresh_token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4NzY4MDAuNDgxNzUxNCwgImV4cCI6IDE2MjY2NTI4MDAuNDgxNzUxNCwgInVzZXJuYW1lIjogIm15X3VzZXIiLCAidG9rZW5fdHlwZSI6ICJyZWZyZXNoIn0.btJF0LJfymInhGJQ2xvPwkp2dFUqwgcw4OA_wE-EcCM",
"action": "user_logged_in",
"source": "moonraker"
}
token field is a JSON Web Token used to authorize the user. It should
be included in the Authorization header as a Bearer type for all HTTP
requests. The token expires after 1 hour.
- The refresh_token field contains a JWT that can be used to generate new
tokens after they are expire. See the
refresh token section for details.
Note
This endpoint may be accessed by unauthorized clients. A 401 would only be returned if the authentication failed.
Logout Current User¶
HTTP Request:
POST /access/logout
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.logout",
"id": 1323
}
Returns: An object containing the logged out username and action summary.
{
"username": "my_user",
"action": "user_logged_out"
}
Get Current User¶
HTTP Request:
GET /access/user
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.get_user",
"id": 1323
}
Returns: An object containing the currently logged in user name, the source and the date on which the user was created (in unix time).
{
"username": "my_user",
"source": "moonraker",
"created_on": 1618876783.8896716
}
Create User¶
HTTP Request:
POST /access/user
Content-Type: application/json
{
"username": "my_user",
"password": "my_password"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.post_user",
"params": {
"username": "my_user",
"password": "my_password"
},
"id": 1323
}
Returns: An object containing the created user name, an auth token, a refresh token, the source, and an action summary. Creating a user also effectively logs the user in.
{
"username": "my_user",
"token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4NzY3ODMuODkxNjE5LCAiZXhwIjogMTYxODg4MDM4My44OTE2MTksICJ1c2VybmFtZSI6ICJteV91c2VyIiwgInRva2VuX3R5cGUiOiAiYXV0aCJ9.oH0IShTL7mdlVs4kcx3BIs_-1j0Oe-qXezJKjo-9Xgo",
"refresh_token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4NzY3ODMuODkxNzAyNCwgImV4cCI6IDE2MjY2NTI3ODMuODkxNzAyNCwgInVzZXJuYW1lIjogIm15X3VzZXIiLCAidG9rZW5fdHlwZSI6ICJyZWZyZXNoIn0.a6ZeRjk8RQQJDDH0JV-qGY_d_HIgfI3XpsqUlUaFT7c",
"source": "moonraker",
"action": "user_created"
}
Note
Unlike /access/login, /access/user is a protected endpoint. To
create a new user a client must either be trusted, use the API Key,
or be logged in as another user.
Delete User¶
Deletes a registered user.
Note
A request to delete a user MUST come from an authorized source other than the account to be deleted. This can be a "trusted user", the "api key user", or any other user account.
HTTP Request:
DELETE /access/user
Content-Type: application/json
{
"username": "my_username"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.delete_user",
"params": {
"username": "my_username"
},
"id": 1323
}
Returns: The username of the deleted user and an action summary. This effectively logs the user out, as all outstanding tokens will be invalid.
{
"username": "my_user",
"action": "user_deleted"
}
List Available Users¶
HTTP Request:
GET /access/users/list
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.users.list",
"id": 1323
}
Returns: A list of created users on the system
{
"users": [
{
"username": "testuser",
"source": "moonraker",
"created_on": 1618771331.1685035
},
{
"username": "testuser2",
"source": "ldap",
"created_on": 1620943153.0191233
}
]
}
Reset User Password¶
HTTP Request:
POST /access/user/password
Content-Type: application/json
{
"password": "my_current_password",
"new_password": "my_new_pass"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.user.password",
"params": {
"password": "my_current_password",
"new_password": "my_new_pass"
},
"id": 1323
}
Returns: The username and action summary.
{
"username": "my_user",
"action": "user_password_reset"
}
Refresh JSON Web Token¶
This endpoint can be used to refresh an expired auth token. If this request returns an error then the refresh token is no longer valid and the user must login with their credentials.
HTTP Request:
POST /access/refresh_jwt
Content-Type: application/json
{
"refresh_token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4Nzc0ODUuNzcyMjg5OCwgImV4cCI6IDE2MjY2NTM0ODUuNzcyMjg5OCwgInVzZXJuYW1lIjogInRlc3R1c2VyIiwgInRva2VuX3R5cGUiOiAicmVmcmVzaCJ9.Y5YxGuYSzwJN2WlunxlR7XNa2Y3GWK-2kt-MzHvLbP8"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.refresh_jwt",
"params": {
"refresh_token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4Nzc0ODUuNzcyMjg5OCwgImV4cCI6IDE2MjY2NTM0ODUuNzcyMjg5OCwgInVzZXJuYW1lIjogInRlc3R1c2VyIiwgInRva2VuX3R5cGUiOiAicmVmcmVzaCJ9.Y5YxGuYSzwJN2WlunxlR7XNa2Y3GWK-2kt-MzHvLbP8"
},
"id": 1323
}
Returns: The username, new auth token, the source and action summary.
{
"username": "my_user",
"token": "eyJhbGciOiAiSFMyNTYiLCAidHlwIjogIkpXVCJ9.eyJpc3MiOiAiTW9vbnJha2VyIiwgImlhdCI6IDE2MTg4NzgyNDMuNTE2Nzc5MiwgImV4cCI6IDE2MTg4ODE4NDMuNTE2Nzc5MiwgInVzZXJuYW1lIjogInRlc3R1c2VyIiwgInRva2VuX3R5cGUiOiAiYXV0aCJ9.Ia_X_pf20RR4RAEXcxalZIOzOBOs2OwearWHfRnTSGU",
"source": "moonraker",
"action": "user_jwt_refresh"
}
Note
This endpoint may be accessed by unauthorized clients. A 401 would only be returned if the refresh token is invalid.
Generate a Oneshot Token¶
Javascript is not capable of modifying the headers for some HTTP requests
(for example, the websocket), which is a requirement to apply JWT or API Key
authorization. To work around this clients may request a Oneshot Token and
pass it via the query string for these requests. Tokens expire in 5 seconds
and may only be used once, making them relatively safe for inclusion in the
query string.
HTTP request:
GET /access/oneshot_token
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.oneshot_token",
"id": 1323
}
Returns:
A temporary token that may be added to a request's query string for access to any API endpoint. The query string should be added in the form of:
?token={base32_random_token}
Retrieve information about authorization endpoints¶
HTTP Request:
GET /access/info
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.info",
"id": 1323
}
Returns: An object containing information about authorization endpoints, such as default_source and available_sources.
{
"default_source": "moonraker",
"available_sources": [
"moonraker",
"ldap"
]
}
Get the Current API Key¶
HTTP request:
GET /access/api_key
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.get_api_key",
"id": 1323
}
Returns:
The current API key
Generate a New API Key¶
HTTP request:
POST /access/api_key
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "access.post_api_key",
"id": 1323
}
Returns:
The newly generated API key. This overwrites the previous key. Note that the API key change is applied immediately, all subsequent HTTP requests from untrusted clients must use the new key. Changing the API Key will not affect open websockets authenticated using the previous API Key.
Database APIs¶
The following endpoints provide access to Moonraker's lmdb database. The
database is divided into namespaces. Each client may define its own
namespace to store information. From the client's point of view, a
namespace is an object. Items in the database are accessed by providing
a namespace and a key. A key may be specified as string, where a "." is a
delimiter, to access nested fields. Alternatively the key may be specified
as an array of strings, where each string references a nested field.
This is useful for scenarios where your namespace contains keys that include
a "." character.
Note
Moonraker reserves the moonraker, gcode_metadata, and history
namespaces. Clients may read from these namespaces but they may not
modify them.
For example, assume the following object is stored in the "superclient" namespace:
{
"settings": {
"console": {
"enable_autocomplete": true
}
},
"theme": {
"background_color": "black"
}
}
enable_autocomplete field by supplying superclient as
the namespace argument and settings.console.enable_autocomplete or
["settings", "console", "enable_autocomplete"] as the key argument for
the request. The entire settings object could be accessed by providing
settings or ["settings"] as the key argument. The entire namespace
may be read by omitting the key argument, however as explained below it
is not possible to modify a namespace without specifying a key.
List namespaces¶
Lists all available namespaces.
HTTP request:
GET /server/database/list
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.database.list",
"id": 8694
}
Returns:
An object containing an array of namespaces in the following format:
{
"namespaces": [
"gcode_metadata",
"history",
"moonraker",
"test_namespace"
]
}
Get Database Item¶
Retrieves an item from a specified namespace. The key argument may be
omitted, in which case an object representing the entire namespace will
be returned in the value field. If the key is provided and does not
exist in the database an error will be returned.
HTTP request:
GET /server/database/item?namespace={namespace}&key={key}
{
"jsonrpc": "2.0",
"method": "server.database.get_item",
"params": {
"namespace": "{namespace}",
"key": "{key}"
},
"id": 5644
}
An object containing the requested namespace, key, and value.
{
"namespace": "moonraker",
"key": "file_manager.metadata_version",
"value": 2
}
Add Database Item¶
Inserts an item into the database. If the namespace does not exist
it will be created. If the key specifies a nested field, all parents
will be created if they do not exist. If the key exists it will be
overwritten with the provided value. The key parameter must be provided,
as it is not possible to assign a value directly to a namespace.
HTTP request:
POST /server/database/item?namespace={namespace}&key={key}value={value}`
Note
If the value is not a string type, the value argument must
provide a type hint. Alternatively,
arguments may be passed via the request body in JSON format. For
example:
POST /server/database/item
Content-Type: application/json
{
"namespace": "my_client",
"key": "settings.some_count",
"value": 100
}
{
"jsonrpc": "2.0",
"method": "server.database.post_item",
"params": {
"namespace": "{namespace}",
"key": "{key}",
"value": 100
},
"id": 4654
}
An object containing the inserted namespace, key, and value.
{
"namespace": "test",
"key": "settings.some_count",
"value": 9001
}
Delete Database Item¶
Deletes an item from a namespace at the specified key. If the key does not
exist in the namespace an error will be returned. If the deleted item results
in an empty namespace, the namespace will be removed from the database.
HTTP request:
DELETE /server/database/item?namespace={namespace}&key={key}
{
"jsonrpc": "2.0",
"method": "server.database.delete_item",
"params": {
"namespace": "{namespace}",
"key": "{key}"
},
"id": 4654
}
namespace, key, and value of the
deleted item.
{
"namespace": "test",
"key": "settings.some_count",
"value": 9001
}
Job Queue APIs¶
The following endpoints may be used to manage Moonraker's job queue. Note that Moonraker's Job Queue is implemented as a FIFO queue and it may contain multiple references to the same job.
Note
All filenames provided to and returned by these endpoints are relative to
the gcodes root.
Retrieve the job queue status¶
Retrieves the current state of the job queue
HTTP request:
GET /server/job_queue/status
{
"jsonrpc": "2.0",
"method": "server.job_queue.status",
"id": 4654
}
Returns:
The current state of the job queue:
{
"queued_jobs": [
{
"filename": "job1.gcode",
"job_id": "0000000066D99C90",
"time_added": 1636151050.7666452,
"time_in_queue": 21.89680004119873
},
{
"filename": "job2.gcode",
"job_id": "0000000066D991F0",
"time_added": 1636151050.7766452,
"time_in_queue": 21.88680004119873
},
{
"filename": "subdir/job3.gcode",
"job_id": "0000000066D99D80",
"time_added": 1636151050.7866452,
"time_in_queue": 21.90680004119873
}
],
"queue_state": "ready"
}
Below is a description of the returned fields:
queued_jobs: an array of objects representing each queued job. Each object contains thefilenameof the enqueued job and a uniquejob_idgenerated for each job. Thejob_idis a 64-bit Hexadecimal string value. On 32-bit systems the most significant bits will always contain zeros. Items are ordered by the time they were queued, the first item will be the next job loaded.queue_state: The current state of the queue. Can be one of the following:ready: The queue is active and will load the next job upon completion of the current jobloading: The queue is currently loading the next job. If the user specified ajob_transition_delayand/orjob_transition_gcode, the queue will remain in theloadingstate until both are completed or an error is encountered.starting: The queue enters this state after theloadingphase is complete before attempting to start the job.paused: The queue is currently paused and will not load the next job upon completion of the current job. The queue will enter thepausedstate if an error is encountered during theloadingorstartingphases, or if the user pauses the queue through the provided endpoint.
time_added: The time (in Unix Time) the job was added to the queuetime_in_queue: The cumulative amount of time (in seconds) the job has been pending in the queue
Enqueue a job¶
Adds a job, or an array of jobs, to the end of the job queue. The same filename may be specified multiple times to queue a job that repeats. When multiple jobs are specified they will be enqueued in the order they are received.
Note
The request will be aborted and return an error if any of the supplied files do not exist.
HTTP request:
POST /server/job_queue/job?filenames=job1.gcode,job2.gcode,subdir/job3.gcode
Note
Multiple jobs should be comma separated as shown above.
Alternatively filenames maybe be specified as a json object
in the body of the request.
POST /server/job_queue/job
Content-Type: application/json
{
"filenames": [
"job1.gcode",
"job2.gcode",
"subdir/job3.gcode"
],
"reset": false
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.job_queue.post_job",
"params": {
"filenames": [
"job1.gcode",
"job2.gcode",
"subdir/job3.gcode"
],
"reset": false
},
"id": 4654
}
Parameters:
reset: A boolean value indicating whether Moonraker should clear the existing queued jobs before adding the new jobs. Defaults tofalse.
Returns:
The current state of the job queue:
{
"queued_jobs": [
{
"filename": "job1.gcode",
"job_id": "0000000066D99C90",
"time_added": 1636151050.7666452,
"time_in_queue": 21.89680004119873
},
{
"filename": "job2.gcode",
"job_id": "0000000066D991F0",
"time_added": 1636151050.7766452,
"time_in_queue": 21.88680004119873
},
{
"filename": "subdir/job3.gcode",
"job_id": "0000000066D99D80",
"time_added": 1636151050.7866452,
"time_in_queue": 21.90680004119873
}
],
"queue_state": "ready"
}
Remove a Job¶
Removes one or more jobs from the queue.
Note
Unlike the POST version of this method, it is not necessary that all job ids exist. If any supplied job id does not exist in the queue it will be silently ignored. Clients can verify the contents of the queue via the return value.
HTTP request:
DELETE /server/job_queue/job?job_ids=0000000066D991F0,0000000066D99D80
{
"jsonrpc": "2.0",
"method": "server.job_queue.delete_job",
"params": {
"job_ids": [
"0000000066D991F0".
"0000000066D99D80"
]
},
"id": 4654
}
Tip
Alternatively all=true ("all": true for JSON-RPC) may specified
to clear the job queue.
Returns:
The current state of the job queue:
{
"queued_jobs": [
{
"filename": "job1.gcode",
"job_id": "0000000066D99C90",
"time_added": 1636151050.7666452,
"time_in_queue": 21.89680004119873
}
],
"queue_state": "ready"
}
Pause the job queue¶
Sets the job queue state to "pause", which prevents the next job in the queue from loading after an job in progress is complete.
Note
If the queue is paused while the queue is in the loading state
the load will be aborted.
HTTP request:
POST /server/job_queue/pause
{
"jsonrpc": "2.0",
"method": "server.job_queue.pause",
"id": 4654
}
Returns:
The current state of the job queue:
{
"queued_jobs": [
{
"filename": "job1.gcode",
"job_id": "0000000066D99C90",
"time_added": 1636151050.7666452,
"time_in_queue": 21.89680004119873
},
{
"filename": "job2.gcode",
"job_id": "0000000066D991F0",
"time_added": 1636151050.7766452,
"time_in_queue": 21.88680004119873
},
{
"filename": "subdir/job3.gcode",
"job_id": "0000000066D99D80",
"time_added": 1636151050.7866452,
"time_in_queue": 21.90680004119873
}
],
"queue_state": "paused"
}
Start the job queue¶
Starts the job queue. If Klipper is ready to start a print the next job in the queue will be loaded. Otherwise the queue will be put into the "ready" state, enabling automatic transition after the next completed print.
HTTP request:
POST /server/job_queue/start
{
"jsonrpc": "2.0",
"method": "server.job_queue.start",
"id": 4654
}
Returns:
The current state of the job queue:
{
"queued_jobs": [
{
"filename": "job1.gcode",
"job_id": "0000000066D99C90",
"time_added": 1636151050.7666452,
"time_in_queue": 21.89680004119873
},
{
"filename": "job2.gcode",
"job_id": "0000000066D991F0",
"time_added": 1636151050.7766452,
"time_in_queue": 21.88680004119873
},
{
"filename": "subdir/job3.gcode",
"job_id": "0000000066D99D80",
"time_added": 1636151050.7866452,
"time_in_queue": 21.90680004119873
}
],
"queue_state": "loading"
}
Perform a Queue Jump¶
Jumps a job to the front of the queue.
HTTP request:
POST /server/job_queue/jump?job_id=0000000066D991F0
{
"jsonrpc": "2.0",
"method": "server.job_queue.jump",
"params" {
"job_id": "0000000066D991F0"
},
"id": 4654
}
Returns:
The current state of the job queue:
{
"queued_jobs": [
{
"filename": "job2.gcode",
"job_id": "0000000066D991F0",
"time_added": 1636151050.7766452,
"time_in_queue": 21.88680004119873
},
{
"filename": "job1.gcode",
"job_id": "0000000066D99C90",
"time_added": 1636151050.7666452,
"time_in_queue": 21.89680004119873
},
{
"filename": "subdir/job3.gcode",
"job_id": "0000000066D99D80",
"time_added": 1636151050.7866452,
"time_in_queue": 21.90680004119873
}
],
"queue_state": "loading"
}
Announcement APIs¶
The following endpoints are available to manage announcements. See the appendix for details on how announcements work and recommendations for your implementation.
List announcements¶
Retrieves a list of current announcements. The include_dismissed
argument is optional and defaults to true. If set to false
dismissed entries will be omitted from the return value.
HTTP request:
GET /server/announcements/list?include_dismissed=false
{
"jsonrpc": "2.0",
"method": "server.announcements.list",
"params": {
"include_dismissed": false
},
"id": 4654
}
Returns:
The current list of announcements, in descending order (newest to oldest)
sorted by date and a list of feeds Moonraker is currently subscribed to:
{
{
"entries": [
{
"entry_id": "arksine/moonlight/issue/3",
"url": "https://github.com/Arksine/moonlight/issues/3",
"title": "Test announcement 3",
"description": "Test Description [with a link](https://moonraker.readthedocs.io).",
"priority": "normal",
"date": 1647459219,
"dismissed": false,
"date_dismissed": null,
"dismiss_wake": null,
"source": "moonlight",
"feed": "moonlight"
},
{
"entry_id": "arksine/moonlight/issue/2",
"url": "https://github.com/Arksine/moonlight/issues/2",
"title": "Announcement Test Two",
"description": "This is a high priority announcement. This line is included in the description.",
"priority": "high",
"date": 1646855579,
"dismissed": false,
"date_dismissed": null,
"dismiss_wake": null,
"source": "moonlight",
"feed": "moonlight"
},
{
"entry_id": "arksine/moonlight/issue/1",
"url": "https://github.com/Arksine/moonlight/issues/1",
"title": "Announcement Test One",
"description": "This is the description. Anything here should appear in the announcement, up to 512 characters.",
"priority": "normal",
"date": 1646854678,
"dismissed": false,
"date_dismissed": null,
"dismiss_wake": null,
"source": "moonlight",
"feed": "moonlight"
},
{
"entry_id": "arksine/moonraker/issue/349",
"url": "https://github.com/Arksine/moonraker/issues/349",
"title": "PolicyKit warnings; unable to manage services, restart system, or update packages",
"description": "This announcement is an effort to get ahead of a coming change that will certainly result in issues. PR #346 has been merged, and with it are some changes to Moonraker's default behavior.",
"priority": "normal",
"date": 1643392406,
"dismissed": false,
"source": "moonlight",
"feed": "Moonraker"
}
],
"feeds": [
"moonraker",
"klipper",
"moonlight"
]
}
}
Update announcements¶
Requests that Moonraker check for announcement updates. This is generally not required in production, as Moonraker will automatically check for updates every 30 minutes. However, during development this endpoint is useful to force an update when it is necessary to perform integration tests.
HTTP request:
POST /server/announcements/update
{
"jsonrpc": "2.0",
"method": "server.announcements.update",
"id": 4654
}
Returns:
The current list of announcements, in descending order (newest to oldest)
sorted by date, and a modified field that contains a boolean value
indicating if the update resulted in a change:
{
"entries": [
{
"entry_id": "arksine/moonraker/issue/349",
"url": "https://github.com/Arksine/moonraker/issues/349",
"title": "PolicyKit warnings; unable to manage services, restart system, or update packages",
"description": "This announcement is an effort to get ahead of a coming change that will certainly result in issues. PR #346 has been merged, and with it are some changes to Moonraker's default behavior.",
"priority": "normal",
"date": 1643392406,
"dismissed": false,
"source": "moonlight",
"feed": "Moonraker"
},
{
"entry_id": "arksine/moonlight/issue/1",
"url": "https://github.com/Arksine/moonlight/issues/1",
"title": "Announcement Test One",
"description": "This is the description. Anything here should appear in the announcement, up to 512 characters.",
"priority": "normal",
"date": 1646854678,
"dismissed": true,
"source": "moonlight",
"feed": "Moonlight"
},
{
"entry_id": "arksine/moonlight/issue/2",
"url": "https://github.com/Arksine/moonlight/issues/2",
"title": "Announcement Test Two",
"description": "This is a high priority announcement. This line is included in the description.",
"priority": "high",
"date": 1646855579,
"dismissed": false,
"source": "moonlight",
"feed": "Moonlight"
},
{
"entry_id": "arksine/moonlight/issue/3",
"url": "https://github.com/Arksine/moonlight/issues/3",
"title": "Test announcement 3",
"description": "Test Description [with a link](https://moonraker.readthedocs.io).",
"priority": "normal",
"date": 1647459219,
"dismissed": false,
"source": "moonlight",
"feed": "Moonlight"
}
],
"modified": false
}
Dismiss an announcement¶
Sets the dismiss flag of an announcement to true. The entry_id
field is required. The entry_id contains forward slashes so remember
to escape the ID if including it in the query string of an HTTP request.
HTTP request:
POST /server/announcements/dismiss?entry_id=arksine%2Fmoonlight%2Fissue%2F1&wake_time=600
{
"jsonrpc": "2.0",
"method": "server.announcements.dismiss",
"params": {
"entry_id": "arksine/moonlight/issue/1",
"wake_time": 600
},
"id": 4654
}
Parameters:
entry_id: The entry identifier. This field may contain forward slashes so it should be url escaped when placed in the query string of an http request. This parameter is required.wake_time: The time, in seconds, in which the entry'sdismissedstate will revert to false. This parameter is optional, if omitted the entry will be dismissed indefinitely.
Returns:
The entry_id of the dismissed entry:
{
"entry_id": "arksine/moonlight/issue/1"
}
List announcement feeds¶
HTTP request:
GET /server/announcements/feeds
{
"jsonrpc": "2.0",
"method": "server.announcements.feeds",
"id": 4654
}
Returns:
A list of feeds the instance of Moonraker is subscribed to.
{
"feeds": [
"moonraker",
"klipper"
]
}
Add an announcement feed¶
Specifies a new feed for Moonraker's announcements component to query
in addition to moonraker, klipper, and feeds configured in
moonraker.conf.
HTTP request:
POST /server/announcements/feed?name=my_feed
{
"jsonrpc": "2.0",
"method": "server.announcements.post_feed",
"params": {
"name": "my_feed"
},
"id": 4654
}
Parameters:
name: The name of the new feed. This parameter is required.
Returns:
The name of the new feed and the action taken. The action will be added
if a new feed added, or skipped if the feed already exists.
{
"feed": "my_feed",
"action": "added"
}
Remove an announcement feed¶
Removes a subscribed feed. Only feeds previously subscribed to using
the add feed API may be removed. Feeds
configured in moonraker.conf may not be removed.
HTTP request:
DELETE /server/announcements/feed?name=my_feed
{
"jsonrpc": "2.0",
"method": "server.announcements.delete_feed",
"params": {
"name": "my_feed"
},
"id": 4654
}
Parameters:
name: The name of the new feed to remove. This parameter is required.
Returns:
The name of the new feed and the action taken. The action will be
removed if the operation was successful.
{
"feed": "my_feed",
"action": "removed"
}
Webcam APIs¶
The following APIs are available to manage webcam configuration:
List Webcams¶
HTTP request:
GET /server/webcams/list
{
"jsonrpc": "2.0",
"method": "server.webcams.list",
"id": 4654
}
Returns:
A list of configured webcams:
{
"webcams": [
{
"name": "testcam3",
"location": "door",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 20,
"target_fps_idle": 5,
"stream_url": "http://camera.lan/webcam?action=stream",
"snapshot_url": "http://camera.lan/webcam?action=snapshot",
"flip_horizontal": false,
"flip_vertical": true,
"rotation": 90,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "config",
"uid": "55d3801e-fdc1-438d-8728-2fff8b83b909"
},
{
"name": "tc2",
"location": "printer",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 15,
"target_fps_idle": 5,
"stream_url": "http://printer.lan/webcam?action=stream",
"snapshot_url": "http://printer.lan/webcam?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "database",
"uid": "65e51c8a-6763-41d4-8e76-345bb6e8e7c3"
},
{
"name": "TestCam",
"location": "printer",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 15,
"target_fps_idle": 5,
"stream_url": "/webcam/?action=stream",
"snapshot_url": "/webcam/?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "database",
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
}
]
}
Get Webcam Information¶
HTTP request:
GET /server/webcams/item?uid=341778f9-387f-455b-8b69-ff68442d41d9
{
"jsonrpc": "2.0",
"method": "server.webcams.get_item",
"params": {
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
},
"id": 4654
}
Parameters:
uid: The webcam's assigned unique ID. This parameter is optional, when not specified the request will fallback to thenameparameter.name: The name of the webcam to request information for. If the named webcam is not available the request will return with an error. This parameter must be provided when theuidis omitted.
Returns:
The full configuration for the requested webcam:
{
"webcam": {
"name": "TestCam",
"location": "printer",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 15,
"target_fps_idle": 5,
"stream_url": "/webcam/?action=stream",
"snapshot_url": "/webcam/?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "database",
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
}
}
Add or update a webcam¶
Adds a new webcam entry or updates an existing entry. When updating an entry only the fields provided will be modified.
Note
A webcam configured via moonraker.conf cannot be updated or
overwritten using this API.
HTTP request:
POST /server/webcams/item
Content-Type: application/json
{
"name": "cam_name",
"snapshot_url": "http://printer.lan:8080/webcam?action=snapshot",
"stream_url": "http://printer.lan:8080/webcam?action=stream"
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.webcams.post_item",
"params": {
"name": "cam_name",
"snapshot_url": "/webcam?action=snapshot",
"stream_url": "/webcam?action=stream"
},
"id": 4654
}
Parameters:
uid: The unique ID of the webcam. This parameter may be specified to modify an existing webcam. New entries must omit theuid.name: The name of the camera to add or update. This parameter must be provided for new entries.location: A description of the webcam location, ie: what the webcam is observing. The default isprinterfor new entries.icon: The name of the icon to use for the camera. The default ismdiWebcamfor new entries.enabled: A boolean value to indicate if this webcam should be enabled. Default is True for new entries.service: The name of the webcam application streaming service. The default is "mjpegstreamer" for new entries.target_fps: The target framerate. The default is 15 for new entries.target_fps_idle: The target framerate when the printer is idle. The default is 5 for new entries.stream_url: The url for the camera stream request. This may be a full url or a url relative to Moonraker's host machine. If the url is relative it is assumed that the stream is available over http on port 80. This parameter must be provided for new entries.snapshot_url: The url for the camera snapshot request. This may be a full url or a url relative to Moonraker's host machine. If the url is relative it is assumed that the snapshot is available over http on port 80. The default is an empty string for new entries.flip_horizontal: A boolean value indicating whether the stream should be flipped horizontally. The default is false for new entries.flip_vertical: A boolean value indicating whether the stream should be flipped vertically. The default is false for new entries.rotation: An integer value indicating the amount of clockwise rotation to apply to the stream. May be 0, 90, 180, or 270. The default is 0 for new entries.aspect_ratio: The aspect ratio to display for the camera. Note that this option is specific to certain services, otherwise it is ignored. The default is4:3for new entries.extra_data: Additional webcam data set by the front end in the form of a json object. This may be used to store any additional webcam options and/or data. The default is an empty object for new entries.
Tip
When modifying existing entries it is possible to rename an existing item by
specifying its current uid and a new value for name. Keep in mind that
names must be unique, an attempt to rename an existing webcam to another name
that is reserved will result in an error.
Returns:
The full configuration for the added/updated webcam:
{
"webcam": {
"name": "TestCam",
"location": "printer",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 15,
"target_fps_idle": 5,
"stream_url": "/webcam/?action=stream",
"snapshot_url": "/webcam/?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "database",
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
}
}
Delete a webcam¶
Note
A webcam configured via moonraker.conf cannot be deleted
using this API.
HTTP request:
DELETE /server/webcams/uid?name=341778f9-387f-455b-8b69-ff68442d41d9
{
"jsonrpc": "2.0",
"method": "server.webcams.delete_item",
"params": {
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
},
"id": 4654
}
Parameters:
uid: The webcam's assigned unique ID. This parameter is optional, when not specified the request will fallback to thenameparameter.name: The name of the webcam to delete. If the named webcam is not available the request will return with an error. This parameter must be provided when theuidis omitted.
Returns:
The full configuration of the deleted webcam:
{
"webcam": {
"name": "TestCam",
"location": "printer",
"service": "mjpegstreamer",
"target_fps": 15,
"stream_url": "/webcam/?action=stream",
"snapshot_url": "/webcam/?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"source": "database",
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
}
}
Test a webcam¶
Resolves a webcam's stream and snapshot urls. If the snapshot is served over http, a test is performed to see if the url is reachable.
HTTP request:
POST /server/webcams/test?uid=341778f9-387f-455b-8b69-ff68442d41d9
{
"jsonrpc": "2.0",
"method": "server.webcams.test",
"params": {
"uid": "341778f9-387f-455b-8b69-ff68442d41d9"
},
"id": 4654
}
Parameters:
uid: The webcam's assigned unique ID. This parameter is optional, when not specified the request will fallback to thenameparameter.name: The name of the webcam to test. If the named webcam is not available the request will return with an error. This parameter must be provided when theuidis omitted.
Returns: Test results in the following format
{
"name": "TestCam",
"snapshot_reachable": true,
"snapshot_url": "http://127.0.0.1:80/webcam/?action=snapshot",
"stream_url": "http://127.0.0.1:80/webcam/?action=stream"
}
Notifier APIs¶
The following APIs are available to view and tests notifiers.
List Notifiers¶
HTTP request:
GET /server/notifiers/list
{
"jsonrpc": "2.0",
"method": "server.notifiers.list",
"id": 4654
}
Returns:
A list of configured notifiers:
{
"notifiers": [
{
"name": "print_start",
"url": "tgram://{bottoken}/{ChatID}",
"events": [
"started"
],
"body": "Your printer started printing '{event_args[1].filename}'",
"title": null,
"attach": null
},
{
"name": "print_complete",
"url": "tgram://{bottoken}/{ChatID}",
"events": [
"complete"
],
"body": "Your printer completed printing '{event_args[1].filename}",
"title": null,
"attach": "http://192.168.1.100/webcam/?action=snapshot"
},
{
"name": "print_error",
"url": "tgram://{bottoken}/{ChatID}",
"events": [
"error"
],
"body": "{event_args[1].message}",
"title": null,
"attach": "http://192.168.1.100/webcam/?action=snapshot"
}
]
}
Update Manager APIs¶
The following endpoints are available when the [update_manager] component has
been configured:
Get update status¶
Retrieves the current state of each item available for update. Items may
include the linux package manager (system), applications such as moonraker and
klipper, web clients such as mainsail and fluidd, and other configured
applications/extensions.
HTTP request:
GET /machine/update/status?refresh=false
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "machine.update.status",
"params": {
"refresh": false
},
"id": 4644
}
Parameters:
refresh: (Optional) When set to true state for all updaters will be refreshed. The default isfalse. A request to refresh is aborted under the following conditions:- An update is in progress
- A print is in progress
- The update manager hasn't completed initialization
- A previous refresh has occured within the last 60 seconds
Note
The refresh parameter is deprecated. Client developers should use the
refresh endpoint to request a refresh.
Returns:
Status information for each update package. Note that mainsail
and fluidd are present as clients configured in moonraker.conf
{
"busy": false,
"github_rate_limit": 60,
"github_requests_remaining": 57,
"github_limit_reset_time": 1615836932,
"version_info": {
"system": {
"package_count": 4,
"package_list": [
"libtiff5",
"raspberrypi-sys-mods",
"rpi-eeprom-images",
"rpi-eeprom"
]
},
"moonraker": {
"channel": "dev",
"debug_enabled": true,
"is_valid": true,
"configured_type": "git_repo",
"corrupt": false,
"info_tags": [],
"detected_type": "git_repo",
"remote_alias": "arksine",
"branch": "master",
"owner": "?",
"repo_name": "moonraker",
"version": "v0.7.1-364",
"remote_version": "v0.7.1-364",
"rollback_version": "v0.7.1-360",
"current_hash": "ecfad5cff15fff1d82cb9bdc64d6b548ed53dfaf",
"remote_hash": "ecfad5cff15fff1d82cb9bdc64d6b548ed53dfaf",
"is_dirty": false,
"detached": true,
"commits_behind": [],
"git_messages": [],
"full_version_string": "v0.7.1-364-gecfad5c",
"pristine": true,
"recovery_url": "https://github.com/Arksine/moonraker.git",
"remote_url": "https://github.com/Arksine/moonraker.git",
"warnings": [],
"anomalies": [
"Unofficial remote url: https://github.com/Arksine/moonraker-fork.git",
"Repo not on offical remote/branch, expected: origin/master, detected: altremote/altbranch",
"Detached HEAD detected"
]
},
"mainsail": {
"name": "mainsail",
"owner": "mainsail-crew",
"version": "v2.1.1",
"remote_version": "v2.1.1",
"rollback_version": "v2.0.0",
"configured_type": "web",
"channel": "stable",
"info_tags": [
"desc=Mainsail Web Client",
"action=some_action"
],
"warnings": [],
"anomalies": [],
"is_valid": true
},
"fluidd": {
"name": "fluidd",
"owner": "fluidd-core",
"version": "v1.16.2",
"remote_version": "v1.16.2",
"rollback_version": "v1.15.0",
"configured_type": "web",
"channel": "beta",
"info_tags": [],
"warnings": [],
"anomalies": [],
"is_valid": true
},
"klipper": {
"channel": "dev",
"debug_enabled": true,
"is_valid": true,
"configured_type": "git_repo",
"corrupt": false,
"info_tags": [],
"detected_type": "git_repo",
"remote_alias": "origin",
"branch": "master",
"owner": "Klipper3d",
"repo_name": "klipper",
"version": "v0.10.0-1",
"remote_version": "v0.10.0-41",
"rollback_version": "v0.9.1-340",
"current_hash": "4c8d24ae03eadf3fc5a28efb1209ce810251d02d",
"remote_hash": "e3cbe7ea3663a8cd10207a9aecc4e5458aeb1f1f",
"is_dirty": false,
"detached": false,
"commits_behind": [
{
"sha": "e3cbe7ea3663a8cd10207a9aecc4e5458aeb1f1f",
"author": "Kevin O'Connor",
"date": "1644534721",
"subject": "stm32: Clear SPE flag on a change to SPI CR1 register",
"message": "The stm32 specs indicate that the SPE bit must be cleared before\nchanging the CPHA or CPOL bits.\n\nReported by @cbc02009 and @bigtreetech.\n\nSigned-off-by: Kevin O'Connor <kevin@koconnor.net>",
"tag": null
},
{
"sha": "99d55185a21703611b862f6ce4b80bba70a9c4b5",
"author": "Kevin O'Connor",
"date": "1644532075",
"subject": "stm32: Wait for transmission to complete before returning from spi_transfer()",
"message": "It's possible for the SCLK pin to still be updating even after the\nlast byte of data has been read from the receive pin. (In particular\nin spi mode 0 and 1.) Exiting early from spi_transfer() in this case\ncould result in the CS pin being raised before the final updates to\nSCLK pin.\n\nAdd an additional wait at the end of spi_transfer() to avoid this\nissue.\n\nSigned-off-by: Kevin O'Connor <kevin@koconnor.net>",
"tag": null
},
],
"git_messages": [],
"full_version_string": "v0.10.0-1-g4c8d24ae-shallow",
"pristine": true,
"recovery_url": "https://github.com/Klipper3d/klipper.git",
"remote_url": "https://github.com/Klipper3d/klipper.git",
"warnings": [],
"anomalies": [],
}
}
}
busy: set to true if an update is in progress. Moonraker will not allow concurrent updates.github_rate_limit: the maximum number of github API requests the user currently is allowed. An unauthenticated user typically has 60 requests per hour.github_requests_remaining: the number of API request the user currently has remaining.github_limit_reset_time: the time when the rate limit will reset, reported as seconds since the epoch (aka Unix Time).
Extensions configured with the git_repo type will contain the following
fields:
configured_type: the application type configured by the userdetected_type: the application type as detected by Moonraker.channel: the currently configured update channel. For Moonraker and Klipper this is set in the[update_manager]configuration. For clients the channel is determined by the configured typepristine: Indicates that there are no modified files or untracked source files in agit_repo. A repo with untracked files can still be updated, however a repo with modified files (ie:dirty) cannot be updated.owner: the owner of the repo / applicationbranch: the name of the current git branch. This should typically be "master".remote_alias: the alias for the remote. This should typically be "origin".version: abbreviated version of the current repo on diskremote_version: abbreviated version of the latest available updaterollback_version: version the repo will revert to when a rollback is requestedfull_version_string: The complete version string of the current repo.current_hash: hash of the most recent commit on diskremote_hash: hash of the most recent commit pushed to the remoteis_valid: true if thegit_repois valid and can be updated.corrupt: Indicates that the git repo has been corrupted. When a repo is in this state it a hard recovery (ie: re-cloning the repo) is necessary. Note that the most common cause of repo corruption is removing power from the host machine without safely shutting down. Damaged storage can also lead to repo corruption.is_dirty: true if agit_repohas modified files. A dirty repo cannot be updated.detached: true if thegit_repois currently in a detached state.debug_enabled: True when debug flag has been set via the command line. When debug is enabled Moonraker will allow detached updates.commits_behind: A list of commits behind. Up to 30 "untagged" commits will be reported. Moonraker checks the last 100 commits for tags, any commits beyond the last 30 with a tag will also be reported.git_messages: If a repo is in the "invalid" state this field will hold a list of string messages containing the output of the last failed git command. Note that it is possible for a git command to fail without providing output (for example, it may become non-responsive and time out), so it is possible for this field to be an empty list when the repo is invalid.info_tags: These are tags defined in the[update_manager client_name]configuration for each client. Client developers my define what tags, if any, users will configure. They can choose to use those tags to display information or perform an additional action after an update if necessary.recovery_url: The url Moonraker will use to re-clone the repo when a hard recovery is requested. If this reports a "?" then a hard recovery is not possible.remote_url: The url for the currently configured remote.warnings: An array of strings that describe warnings detected during repo init. These warnings provide additional context when theis_validfield reportstrue.anomalies: An array of strings that describe anomalies found during initialization. An anomaly can be defined as an unexpected condition, they will not result in an invalid state, nor will they prevent an update. For example, when the detected remote url does not match the configured/expected url Moonraker will fall back to the detected url and report this condition as an anomaly.
Extensions configured with the web type will contain the following fields:
channel: channel to fetch updates fromconfigured_type: will bewebname: name of the configured clientowner: the owner of the clientversion: version of the installed client.remote_version: version of the latest release published to GitHubrollback_version: version the client will revert to when a rollback is requestedinfo_tags: These are tags defined in the[update_manager client_name]configuration for each client. Client developers my define what tags, if any, users will configure. They can choose to use those tags to display information or perform an additional action after an update if necessary.is_valid: A boolean that reports true if an update is possible, false if an update cannot be performed.warnings: An array of strings that describe warnings detected during updater init. These warnings add context when theis_validfield reportstrue.anomalies: An array of strings that describe anomalies found during initialization. An anomaly can be defined as an unexpected condition, they will not result in an invalid state, nor will they prevent an update. For example, when the configured repo to check for updates does not match the detected repo Moonraker will fall back to the detected repo and report this condition as an anomaly.
The system object contains the following fields:
package_count: the number of system packages available for updatepackage_list: an array containing the names of packages available for update
Refresh update status¶
Refreshes the internal update state for the requested item(s).
HTTP request:
POST /machine/update/refresh?name=klipper
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "machine.update.refresh",
"params": {
"name": "klipper"
},
"id": 4644
}
Parameters:
name: (Optional) The name of the specified application. If omitted all registered applications will be refreshed.
Returns:
An object containing full update status matching the response in the status endpoint.
Note
This endpoint will raise 503 error under the following conditions:
- An update is in progress
- A print is in progress
- The update manager hasn't completed initialization
Warning
Applications should use care when calling this method as a refresh is CPU intensive and may be time consuming. Moonraker can be configured to refresh state periodically, thus it is recommended that applications avoid their own procedural implementations. Instead it is best to call this API only when a user requests a refresh.
Perform a full update¶
Attempts to update all configured items in Moonraker. Updates are performed in the following order:
systemif enabled- All configured clients
- Klipper
- Moonraker
HTTP request:
POST /machine/update/full
{
"jsonrpc": "2.0",
"method": "machine.update.full",
"id": 4645
}
ok when complete
Update Moonraker¶
Pulls the most recent version of Moonraker from GitHub and restarts the service. If an update is requested while a print is in progress then this request will return an error.
HTTP request:
POST /machine/update/moonraker
{
"jsonrpc": "2.0",
"method": "machine.update.moonraker",
"id": 4645
}
ok when complete
Update Klipper¶
Pulls the most recent version of Klipper from GitHub and restarts the service. If an update is requested while a print is in progress then this request will return an error.
HTTP request:
POST /machine/update/klipper
{
"jsonrpc": "2.0",
"method": "machine.update.klipper",
"id": 5745
}
ok when complete
Update Client¶
If one more more [update_manager client client_name] sections have
been configured this endpoint can be used to install the most recently
published release of the client. If an update is requested while a
print is in progress then this request will return an error. The
name argument is required, it's value should match the client_name
of the configured section.
HTTP request:
POST /machine/update/client?name={client_name}
{
"jsonrpc": "2.0",
"method": "machine.update.client",
"params": {
"name": "client_name"
},
"id": 8546
}
ok when complete
Update System Packages¶
Upgrades system packages. Currently only apt-get is supported.
If an update is requested while a print is in progress then this request
will return an error.
HTTP request:
POST /machine/update/system
{
"jsonrpc": "2.0",
"method": "machine.update.system",
"id": 4564
}
ok when complete
Recover a corrupt repo¶
On occasion a git command may fail resulting in a repo in a
dirty or invalid state. When this happens it is possible
to recover. The name argument must specify the name of
the repo to recover, it must be of a git repo type. There are two
methods of recovery, the hard argument determines which method
is used:
hard == true: Moonraker will remove the old directory entirely. It will then attempt to recover withrsyncby restoring a backup of a recent valid repo.hard == false: Will rungit clean -f -dfollowed bygit reset --hard {remote}/{branch}. This is useful for recovering dirty repos that are valid. It is possible that this will work on an invalid repo, however it will not work on a corrupt repo.
The hard argument defaults to false.
HTTP request:
POST /machine/update/recover?name=moonraker&hard=false
{
"jsonrpc": "2.0",
"method": "machine.update.recover",
"params": {
"name": "moonraker",
"hard": false
},
"id": 4564
}
ok when complete
Rollback to the previous version¶
HTTP request:
POST /machine/update/rollback?name=moonraker
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "machine.update.rollback",
"params": {
"name": "moonraker"
},
"id": 4564
}
Returns:
ok when complete
Power APIs¶
The APIs below are available when the [power] component has been configured.
Get Device List¶
HTTP request:
GET /machine/device_power/devices
{
"jsonrpc": "2.0",
"method":"machine.device_power.devices",
"id": 5646
}
An array of objects containing info for each configured device.
{
"devices": [
{
"device": "green_led",
"status": "off",
"locked_while_printing": true,
"type": "gpio"
},
{
"device": "printer",
"status": "off",
"locked_while_printing": false,
"type": "tplink_smartplug"
}
]
}
Get Device Status¶
Returns the status for a single configured device.
HTTP request:
GET /machine/device_power/device?device=green_led
{
"jsonrpc": "2.0",
"method": "machine.device_power.get_device",
"params": {
"device": "green_led"
},
"id": 4564
}
An object containing power state for the requested device:
{
"green_led": "off"
}
Set Device State¶
Toggle, turn on, or turn off a specified device.
HTTP request:
POST /machine/device_power/device?device=green_led&action=on
{
"jsonrpc": "2.0",
"method": "machine.device_power.post_device",
"params": {
"device": "green_led",
"action": "on"
},
"id": 4564
}
Note
The action argument may be on, off, or toggle. Any
other value will result in an error.
Returns:
An object containing new power state for the requested device:
{
"green_led": "off"
}
Get Batch Device Status¶
Get power status for the requested devices. At least one device must be specified.
HTTP request:
GET /machine/device_power/status?dev_one&dev_two
{
"jsonrpc": "2.0",
"method": "machine.device_power.status",
"params": {
"dev_one":null,
"dev_two": null
},
"id": 4564
}
An object containing power state for each requested device:
{
"green_led": "off",
"printer": "off"
}
Batch Power On Devices¶
Power on the requested devices. At least one device must be specified.
HTTP request:
POST /machine/device_power/on?dev_one&dev_two
{
"jsonrpc": "2.0",
"method": "machine.device_power.on",
"params": {
"dev_one":null,
"dev_two": null
},
"id": 4564
}
{
"green_led": "on",
"printer": "on"
}
Batch Power Off Devices¶
Power off the requested devices. At least one device must be specified.
HTTP request:
POST /machine/device_power/off?dev_one&dev_two
{
"jsonrpc": "2.0",
"method": "machine.device_power.off",
"params": {
"dev_one": null,
"dev_two": null
},
"id": 4564
}
{
"green_led": "off",
"printer": "off"
}
WLED APIs¶
The APIs for WLED are available when the [wled] component has been configured. For lower-level control of wled consider using the WLED JOSN API directly.
Get strips¶
HTTP request:
GET /machine/wled/strips
{
"jsonrpc": "2.0",
"method":"machine.wled.strips",
"id": 7123
}
Strip information for all wled strips.
{
"result": {
"strips": {
"lights": {
"strip": "lights",
"status": "on",
"chain_count": 79,
"preset": -1,
"brightness": 255,
"intensity": -1,
"speed": -1,
"error": null
},
"desk": {
"strip": "desk",
"status": "on",
"chain_count": 60,
"preset": 8,
"brightness": -1,
"intensity": -1,
"speed": -1,
"error": null
}
}
}
}
Get strip status¶
HTTP request:
GET /machine/wled/status?strip1&strip2
{
"jsonrpc": "2.0",
"method":"machine.wled.status",
"params": {
"lights": null,
"desk": null
},
"id": 7124
}
Strip information for requested strips.
{
"result": {
"lights": {
"strip": "lights",
"status": "on",
"chain_count": 79,
"preset": -1,
"brightness": 255,
"intensity": -1,
"speed": -1,
"error": null
},
"desk": {
"strip": "desk",
"status": "on",
"chain_count": 60,
"preset": 8,
"brightness": -1,
"intensity": -1,
"speed": -1,
"error": null
}
}
}
Turn strip on¶
Turns the specified strips on to the initial colors or intial preset.
HTTP request:
POST /machine/wled/on?strip1&strip2
{
"jsonrpc": "2.0",
"method":"machine.wled.on",
"params": {
"lights": null,
"desk": null
},
"id": 7125
}
Strip information for requested strips.
{
"result": {
"lights": {
"strip": "lights",
"status": "on",
"chain_count": 79,
"preset": -1,
"brightness": 255,
"intensity": -1,
"speed": -1,
"error": null
},
"desk": {
"strip": "desk",
"status": "on",
"chain_count": 60,
"preset": 8,
"brightness": -1,
"intensity": -1,
"speed": -1,
"error": null
}
}
}
Turn strip off¶
Turns off all specified strips.
HTTP request:
POST /machine/wled/off?strip1&strip2
{
"jsonrpc": "2.0",
"method":"machine.wled.off",
"params": {
"lights": null,
"desk": null
},
"id": 7126
}
The new state of the specified strips.
{
"result": {
"lights": {
"strip": "lights",
"status": "off",
"chain_count": 79,
"preset": -1,
"brightness": 255,
"intensity": -1,
"speed": -1,
"error": null
},
"desk": {
"strip": "desk",
"status": "off",
"chain_count": 60,
"preset": 8,
"brightness": -1,
"intensity": -1,
"speed": -1,
"error": null
}
}
}
Toggle strip on/off state¶
Turns each strip off if it is on and on if it is off.
HTTP request:
POST /machine/wled/off?strip1&strip2
{
"jsonrpc": "2.0",
"method":"machine.wled.toggle",
"params": {
"lights": null,
"desk": null
},
"id": 7127
}
The new state of the specified strips.
{
"result": {
"lights": {
"strip": "lights",
"status": "on",
"chain_count": 79,
"preset": -1,
"brightness": 255,
"intensity": -1,
"speed": -1,
"error": null
},
"desk": {
"strip": "desk",
"status": "off",
"chain_count": 60,
"preset": 8,
"brightness": -1,
"intensity": -1,
"speed": -1,
"error": null
}
}
}
Control individual strip state¶
Toggle, turn on, turn off, turn on with preset, turn on with brightness, or turn on preset will some of brightness, intensity, and speed. Or simply set some of brightness, intensity, and speed.
HTTP requests:
Turn strip lights off
POST /machine/wled/strip?strip=lights&action=off
Turn strip lights on to the initial colors or intial preset.
POST /machine/wled/strip?strip=lights&action=on
Turn strip lights on activating preset 3.
POST /machine/wled/strip?strip=lights&action=on&preset=3
Turn strip lights on activating preset 3 while specifying speed and
intensity.
POST /machine/wled/strip?strip=lights&action=on&preset=3&intensity=50&speed=255
Change strip lights brightness (if on) and speed (if a preset is active).
POST /machine/wled/strip?strip=lights&action=control&brightness=99&speed=50
JSON-RPC request:
Returns information for the specified strip.
{
"jsonrpc": "2.0",
"method":"machine.wled.get_strip",
"params": {
"strip": "lights",
},
"id": 7128
}
Calls the action with the arguments for the specified strip.
{
"jsonrpc": "2.0",
"method":"machine.wled.post_strip",
"params": {
"strip": "lights",
"action": "on",
"preset": 1,
"brightness": 255,
"intensity": 255,
"speed": 255
},
"id": 7129
}
Note
The action argument may be on, off, toggle or control. Any
other value will result in an error.
The intensity and speed arguments are only used if a preset is active.
Permitted ranges are 1-255 for brightness and 0-255 for intensity and
speed. When action is on a preset with some or all of brightness,
intensity and speed may also be specified. If the action control is used
one or all of brightness, intensity, and speed must be specified.
Returns:
State of the strip.
{
"result": {
"lights": {
"strip": "lights",
"status": "on",
"chain_count": 79,
"preset": 1,
"brightness": 50,
"intensity": 255,
"speed": 255,
"error": null
}
}
}
Sensor APIs¶
The APIs below are available when the [sensor] component has been configured.
Get Sensor List¶
HTTP request:
GET /server/sensors/list
{
"jsonrpc": "2.0",
"method":"server.sensors.list",
"id": 5646
}
An array of objects containing info for each configured sensor.
{
"sensors": {
"sensor1": {
"id": "sensor1",
"friendly_name": "Sensor 1",
"type": "mqtt",
"values": {
"value1": 0,
"value2": 119.8
}
}
}
}
Get Sensor Information¶
Returns the status for a single configured sensor.
HTTP request:
GET /server/sensors/info?sensor=sensor1
{
"jsonrpc": "2.0",
"method": "server.sensors.info",
"params": {
"sensor": "sensor1"
},
"id": 4564
}
An object containing sensor information for the requested sensor:
{
"id": "sensor1",
"friendly_name": "Sensor 1",
"type": "mqtt",
"values": {
"value1": 0.0,
"value2": 120.0
}
}
Get Sensor Measurements¶
Returns all recorded measurements for a configured sensor.
HTTP request:
GET /server/sensors/measurements?sensor=sensor1
{
"jsonrpc": "2.0",
"method": "server.sensors.measurements",
"params": {
"sensor": "sensor1"
},
"id": 4564
}
An object containing all recorded measurements for the requested sensor:
{
"sensor1": {
"value1": [
3.1,
3.2,
3.0
],
"value2": [
120.0,
120.0,
119.9
]
}
}
Get Batch Sensor Measurements¶
Returns recorded measurements for all sensors.
HTTP request:
GET /server/sensors/measurements
{
"jsonrpc": "2.0",
"method": "server.sensors.measurements",
"id": 4564
}
An object containing all measurements for every configured sensor:
{
"sensor1": {
"value1": [
3.1,
3.2,
3.0
],
"value2": [
120.0,
120.0,
119.9
]
},
"sensor2": {
"value_a": [
1,
1,
0
]
}
}
Spoolman APIs¶
The following APIs are available to interact with the Spoolman integration:
Get Spoolman Status¶
Returns the current status of the spoolman module.
HTTP request:
GET /server/spoolman/status
{
"jsonrpc": "2.0",
"method": "server.spoolman.status",
"id": 4654
}
Returns:
An object containing details about the current status:
{
"spoolman_connected": false,
"pending_reports": [
{
"spool_id": 1,
"filament_used": 10
}
],
"spool_id": 2
}
spoolman_connected: A boolean indicating if Moonraker is connected to Spoolman. WhenfalseSpoolman is unavailable.pending_reports: A list of objects containing spool data that has yet to be reported to Spoolman.spool_id: The current Spool ID. Can be an integer value ornull.
Set active spool¶
Set the ID of the spool that Moonraker should report usage to Spoolman of.
HTTP request:
POST /server/spoolman/spool_id
Content-Type: application/json
{
"spool_id": 1
}
{
"jsonrpc": "2.0",
"method": "server.spoolman.post_spool_id",
"params": {
"spool_id": 1
},
"id": 4654
}
Returns:
The id of the now active spool:
{
"spool_id": 1
}
Note
Send an empty object, {}, to un-set the spool ID and stop any reporting.
The response spool_id will then be set to null
Get active spool¶
Retrieve the ID of the spool to which Moonraker reports usage for Spoolman.
HTTP request:
GET /server/spoolman/spool_id
{
"jsonrpc": "2.0",
"method": "server.spoolman.get_spool_id",
"id": 4654
}
Returns:
The id of the active spool:
{
"spool_id": 1
}
Note
The spool_id can be null if there is no active spool.
Proxy¶
Moonraker supplies a proxy endpoint where you have full access to the Spoolman API without having to configure the endpoint yourself.
See Spoolman's OpenAPI Description for detailed information about it's API.
HTTP request:
POST /server/spoolman/proxy
Content-Type: application/json
{
"request_method": "POST",
"path": "/v1/spool",
"query": "a=1&b=4",
"body": {
"filament_id": 1
}
}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "server.spoolman.proxy",
"params": {
"use_v2_response": true,
"request_method": "POST",
"path": "/v1/spool",
"query": "a=1&b=4",
"body": {
"filament_id": 1
}
},
"id": 4654
}
The following parameters are available. request_method and path are required, the rest are optional.
request_method: The HTTP request method, e.g.GET,POST,DELETE, etc..path: The endpoint, including API version, e.g./v1/filament.query: The query part of the URL, e.g.filament_material=PLA&vendor_name=Prima.body: The request body for the request.use_v2_response: Returns the spoolman response in version 2 format. Default is false.
Note
The version 2 response has been added to eliminate ambiguity between Spoolman errors and Moonraker errors. With version 1 a frontend is not able to reliably to determine if the error is sourced from Spoolman or Moonraker. Version 2 responses will return success unless Moonraker is the source of the error.
The version 2 response is currently opt-in to avoid breaking existing implementations, however in the future it will be required, at which point the version 1 response will be removed. The version 1 response is now deprecated.
Returns:
- Version 1
The json response from the Spoolman server. Errors are proxied directly. For example, if a request returns 404, Moonraker will return a 404 error or the JSON-RPC equivalent of -32601, Method Not Found.
- Version 2
Returns the spoolman response wrapped in an object. The object contains two fields,
errorandresponse. A successful request will place the returned value in theresponsefield anderrorwill benull.When Spoolman returns an error theresponsefield will benulland theerrorfield will contain details about the error.On Spoolman error:{ "response": { "id": 2, "registered": "2023-11-23T12:18:31Z", "first_used": "2023-11-22T12:17:56.123000Z", "last_used": "2023-11-23T10:17:59.900000Z", "filament": { "id": 2, "registered": "2023-11-23T12:17:44Z", "name": "Reactor Red", "vendor": { "id": 2, "registered": "2023-06-26T21:00:42Z", "name": "Fusion" }, "material": "PLA", "price": 25, "density": 1.24, "diameter": 1.75, "weight": 1000, "color_hex": "BD0B0B" }, "remaining_weight": 950, "used_weight": 50, "remaining_length": 318519.4384459262, "used_length": 16764.18097083822, "archived": false }, "error": null }{ "response": null, "error": { "status_code": 404, "message": "No spool with ID 3 found." } }
OctoPrint API emulation¶
Partial support of OctoPrint API is implemented with the purpose of allowing uploading of sliced prints to a moonraker instance. Currently we support Slic3r derivatives and Cura with Cura-OctoPrint.
Version information¶
HTTP request:
GET /api/version
Returns:
An object containing simulated OctoPrint version information
{
"server": "1.5.0",
"api": "0.1",
"text": "OctoPrint (Moonraker v0.3.1-12)"
}
Server status¶
HTTP request:
GET /api/server
Returns:
An object containing simulated OctoPrint server status
{
"server": "1.5.0",
"safemode": "settings"
}
Login verification & User information¶
HTTP request:
GET /api/login
Returns:
An object containing stubbed OctoPrint login/user verification
{
"_is_external_client": false,
"_login_mechanism": "apikey",
"name": "_api",
"active": true,
"user": true,
"admin": true,
"apikey": null,
"permissions": [],
"groups": ["admins", "users"],
}
Get settings¶
HTTP request:
GET /api/settings
Returns:
An object containing stubbed OctoPrint settings. The webcam route is hardcoded to Fluidd/Mainsail default path. We say we have the UFP plugin installed so that Cura-OctoPrint will upload in the preferred UFP format.
{
"plugins": {
"UltimakerFormatPackage": {
"align_inline_thumbnail": false,
"inline_thumbnail": false,
"inline_thumbnail_align_value": "left",
"inline_thumbnail_scale_value": "50",
"installed": true,
"installed_version": "0.2.2",
"scale_inline_thumbnail": false,
"state_panel_thumbnail": true
}
},
"feature": {
"sdSupport": false,
"temperatureGraph": false
},
"webcam": {
"flipH": false,
"flipV": false,
"rotate90": false,
"streamUrl": "/webcam/?action=stream",
"webcamEnabled": true
}
}
OctoPrint File Upload¶
HTTP request:
POST /api/files/local
Alias for Moonraker's file upload API.
Get Job status¶
HTTP request:
GET /api/job
Returns:
An object containing stubbed OctoPrint Job status
{
"job": {
"file": {"name": null},
"estimatedPrintTime": null,
"filament": {"length": null},
"user": null
},
"progress": {
"completion": null,
"filepos": null,
"printTime": null,
"printTimeLeft": null,
"printTimeOrigin": null
},
"state": "Offline"
}
Get Printer status¶
HTTP request:
GET /api/printer
Returns:
An object containing OctoPrint Printer status
{
"temperature": {
"tool0": {
"actual": 22.25,
"offset": 0,
"target": 0
},
"bed": {
"actual": 22.25,
"offset": 0,
"target": 0
}, ...<additional heaters>
},
"state": {
"text": "state",
"flags": {
"operational": true,
"paused": false,
"printing": false,
"cancelling": false,
"pausing": false,
"error": false,
"ready": false,
"closedOrError": false
}
}
}
Send GCode command¶
HTTP request:
POST /api/printer/command
Content-Type: application/json
{
"commands": ["G28"]
}
Returns:
An empty JSON object
{}
List Printer profiles¶
HTTP request:
GET /api/printerprofiles
Returns:
An object containing simulates OctoPrint Printer profile
{
"profiles": {
"_default": {
"id": "_default",
"name": "Default",
"color": "default",
"model": "Default",
"default": true,
"current": true,
"heatedBed": true,
"heatedChamber": false
}
}
}
History APIs¶
The APIs below are available when the [history] component has been configured.
Get job list¶
HTTP request:
GET /server/history/list?limit=50&start=50&since=1&before=5&order=asc
{
"jsonrpc": "2.0",
"method":"server.history.list",
"params":{
"limit": 50,
"start": 10,
"since": 464.54,
"before": 1322.54,
"order": "asc"
},
"id": 5656
}
All arguments are optional. Arguments are as follows:
startRecord number to start from (i.e. 10 would start at the 10th print)limitMaximum Number of prints to return (default: 50)beforeAll jobs before this UNIX timestampsinceAll jobs after this UNIX timestamporderDefine return orderascordesc(default)
Returns:
An array of requested historical jobs:
{
"count": 1,
"jobs": [
{
"job_id": "000001",
"exists": true,
"end_time": 1615764265.6493807,
"filament_used": 7.83,
"filename": "test/history_test.gcode",
"metadata": {
// Object containing metadata at time of job
},
"print_duration": 18.37201827496756,
"status": "completed",
"start_time": 1615764496.622146,
"total_duration": 18.37201827496756
},
]
}
Get job totals¶
HTTP request:
GET /server/history/totals
{
"jsonrpc": "2.0",
"method":"server.history.totals",
"id": 5656
}
Returns:
An object containing the following total job statistics:
{
"job_totals": {
"total_jobs": 3,
"total_time": 11748.077333278954,
"total_print_time": 11348.794790096988,
"total_filament_used": 11615.718840001999,
"longest_job": 11665.191012736992,
"longest_print": 11348.794790096988
}
}
Reset totals¶
Resets the persistent "job totals" to zero.
HTTP request:
POST /server/history/reset_totals
{
"jsonrpc": "2.0",
"method": "server.history.reset_totals",
"id": 5534
}
Returns:
The totals prior to the reset:
```json
{
"last_totals": {
"total_jobs": 3,
"total_time": 11748.077333278954,
"total_print_time": 11348.794790096988,
"total_filament_used": 11615.718840001999,
"longest_job": 11665.191012736992,
"longest_print": 11348.794790096988
}
}
Get a single job¶
HTTP request:
GET /server/history/job?uid=<id>
{
"jsonrpc": "2.0",
"method":"server.history.get_job",
"params":{"uid": "{uid}"},
"id": 4564
}
Data associated with the job ID in the following format:
{
"job": {
"job_id": "000001",
"exists": true,
"end_time": 1615764265.6493807,
"filament_used": 7.83,
"filename": "test/history_test.gcode",
"metadata": {
// Object containing metadata at time of job
},
"print_duration": 18.37201827496756,
"status": "completed",
"start_time": 1615764496.622146,
"total_duration": 18.37201827496756
}
}
Delete job¶
HTTP request:
DELETE /server/history/job?uid=<id>
{
"jsonrpc": "2.0",
"method": "server.history.delete_job",
"params":{
"uid": "{uid}"
},
"id": 5534
}
Tip
It is possible to replace the uid argument with all=true
to delete all jobs in the history database.
Returns:
An array of deleted job ids
[
"000000",
"000001",
]
MQTT APIs¶
The following API is available when [mqtt] has been configured.
Note
These requests are not available over the mqtt transport as they
are redundant. MQTT clients can publish and subscribe to
topics directly.
Publish a topic¶
HTTP request:
POST /server/mqtt/publish
Content-Type: application/json
{
"topic": "home/test/pub",
"payload": "hello",
"qos": 0,
"retain": false,
"timeout": 5
}
{
"jsonrpc": "2.0",
"method":"server.mqtt.publish",
"params":{
"topic": "home/test/pub",
"payload": "hello",
"qos": 0,
"retain": false,
"timeout": 5
},
"id": 4564
}
topic parameter is required. Below is an explanation for
each parameter:
topic: The topic to publish.payload: Payload to send with the topic. May be a boolean, float, integer, string, object, or array. All values are converted to strings prior to publishing. Objects and Arrays are JSON encoded. If omitted an empty payload is sent.qos: QOS level to use when publishing the topic. Must be an integer value from 0 to 2. If omitted the system configured default is used.retain: If set totruethe MQTT broker will retain the payload of this request. Note that only the mostly recently tagged payload is retained. When other clients first subscribe to the topic they immediately receive the retained message. The default isfalse.timeout: A float value in seconds. By default requests with QoS levels of 1 or 2 will block until the Broker acknowledges confirmation. This option applies a timeout to the request, returning a 504 error if the timeout is exceeded. Note that the topic will still be published if the QoS level is 1 or 2.
Tip
To clear a retained value of a topic, publish the topic with an empty
payload and retain set to true.
Returns:
The published topic:
{
"topic": "home/test/pub"
}
Subscribe to a topic¶
HTTP request:
POST /server/mqtt/subscribe
Content-Type: application/json
{
"topic": "home/test/sub",
"qos": 0,
"timeout": 5
}
{
"jsonrpc": "2.0",
"method":"server.mqtt.subscribe",
"params":{
"topic": "home/test/sub",
"qos": 0,
"timeout": 5
},
"id": 4564
}
Only the topic parameter is required. Below is an explanation for
each paramater:
topic: The topic to subscribe. Note that wildcards may not be used.qos: QOS level to use when subscribing to the topic. Must be an integer value from 0 to 2. If omitted the system configured default is used.timeout: A float value in seconds. By default requests will block indefinitely until a response is received. This option applies a timeout to the request, returning a 504 error if the timeout is exceeded. The subscription will be removed after a timeout.
Note
If the topic was previously published with a retained payload this request will return with the retained value.
Returns:
The subscribed topic and its payload:
{
"topic": "home/test/pub",
"payload": "test"
}
Extension APIs¶
Moonraker currently has limited support for 3rd party extensions. These
extensions must create a websocket connect and identify
themselves as an agent. Agents may host their own JSON-RPC methods
that other clients may call. Agents may also emit events that are
broadcast to all other websocket connections.
List Extensions¶
Returns a list of all available extensions. Currently Moonraker can only
be officially extended through connected agents.
HTTP request:
GET /server/extensions/list
{
"jsonrpc": "2.0",
"method":"server.extensions.list",
"id": 4564
}
Returns:
A list of connected agents, where each item is an object containing the agent's identity:
{
"agents": [
{
"name": "moonagent",
"version": "0.0.1",
"type": "agent",
"url": "https://github.com/arksine/moontest"
}
]
}
Call an extension method¶
This API may be used to call a method on a connected agent. The request effectively relays a JSON-RPC request from a client to the agent.
HTTP request:
POST /server/extensions/request
Content-Type: application/json
{
"agent": "moonagent",
"method": "moontest.hello_world",
"arguments": {"argone": true, "argtwo": 9000}
}
{
"jsonrpc": "2.0",
"method":"server.extensions.request",
"params":{
"agent": "moonagent",
"method": "moontest.hello_world",
"arguments": {"argone": true, "argtwo": 9000}
},
"id": 4564
}
Parameters:
agent: The name of the agent. This parameter is required.method: The name of the method to call on the agent. Agents determine the method names they expose. This parameter is required.arguments: This parameter is optional, depending on if the method being called takes parameters. This should be either an array of positional arguments or an object of keyword arguments.
Returns:
The result returned by the JSON-RPC call to the agent. This can be any JSON value as determined by the agent.
Send an agent event¶
Note
This API is only available to websocket connections that have
identified themselves as an agent type.
HTTP Request: Not Available
JSON-RPC request:
{
"jsonrpc": "2.0",
"method":"connection.send_event",
"params":{
"event": "my_event",
"data": {"my_arg": "optional data"}
}
}
Parameters:
- event: The name of the event. This may be any name as
determined by the agent, with the exception of the reserved
names noted below.
- data: Optional supplemental data sent with the event. This
can be any JSON value.
Note
The connected and disconnected events are reserved for use
by Moonraker.
Returns:
ok if an id was present in the request, otherwise no response is
returned. Once received, Moonraker will broadcast this event via
the agent event notification to all other connections.
Register a method with Klipper¶
Allows agents to register remote methods with Klipper. These methods
may be called in gcode_macros.
Note
This API is only available to websocket connections that have
identified themselves as an agent type.
HTTP Request: Not Available
JSON-RPC request:
{
"jsonrpc": "2.0",
"method":"connection.register_remote_method",
"params": {
"method_name": "firemon_alert_heated"
}
}
Parameters:
method_name: The name of the desired method. Agents should make sure that the name is unique. One recommendation is to prefix the agent's name to each method it registers.
Returns:
ok if registration is successful. An error is returned if the method name
is already registered.
Note
Methods registered by agents will persist until the agent disconnects. Upon connection, it is only necessary that they register their desired methods once.
Example:
Presume an application named firemon has connected to Moonraker's websocket
and identified itself as an agent. After identification it registers a
remote method named firemon_alert_heated.
In addition, the user the following gcode_macro configured in printer.cfg:
# printer.cfg
[gcode_macro ALERT_HEATED]
gcode:
{% if not params %}
{action_call_remote_method("firemon_alert_heated")}
{% else %}
{% set htr = params.HEATER|default("unknown") %}
{% set tmp = params.TEMP|default(0)|float %}
{action_call_remote_method(
"firemon_alert_heated", heater=htr, temp=tmp)}
{% endif %}
When the ALERT_HEATED HEATER=extruder TEMP=200 gcode is executed by Klipper,
the agent will receive the following:
{
"jsonrpc": "2.0",
"method":"firemon_alert_heated",
"params": {
"heater": "extruder",
"temp": 200
}
}
When the ALERT_HEATED gcode is executed with no parameters, the agent will
receive the following:
{
"jsonrpc": "2.0",
"method":"monitor_alert_heated"
}
Note
Methods called from Klipper never contain the "id" field, as Klipper does not accept return values to remote methods.
Debug APIs¶
The APIs in this section are available when Moonraker the debug argument
(-g) has been supplied via the command line. Some API may also depend
on Moonraker's configuration, ie: an optional component may choose to
register a debug API.
Warning
Debug APIs may expose security vulnerabilities. They should only be enabled by developers on secured machines.
List Database Namespaces (debug)¶
Debug version of List Namespaces. Return value includes namespaces exlusively reserved for Moonraker. Only availble when Moonraker's debug features are enabled.
HTTP request:
GET /debug/database/list
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "debug.database.list",
"id": 8694
}
Get Database Item (debug)¶
Debug version of Get Database Item. Keys within protected and forbidden namespaces are accessible. Only availble when Moonraker's debug features are enabled.
Warning
Moonraker's forbidden namespaces include items such as user credentials. This endpoint should NOT be implemented in front ends directly.
HTTP request:
GET /debug/database/item?namespace={namespace}&key={key}
{
"jsonrpc": "2.0",
"method": "debug.database.get_item",
"params": {
"namespace": "{namespace}",
"key": "{key}"
},
"id": 5644
}
Add Database Item (debug)¶
Debug version of Add Database Item. Keys within protected and forbidden namespaces may be added. Only availble when Moonraker's debug features are enabled.
Warning
This endpoint should be used for testing/debugging purposes only. Modifying protected namespaces outside of Moonraker can result in broken functionality and is not supported for production environments. Issues opened with reports/queries related to this endpoint will be redirected to this documentation and closed.
POST /debug/database/item
Content-Type: application/json
{
"namespace": "my_client",
"key": "settings.some_count",
"value": 100
}
{
"jsonrpc": "2.0",
"method": "debug.database.post_item",
"params": {
"namespace": "{namespace}",
"key": "{key}",
"value": 100
},
"id": 4654
}
Delete Database Item (debug)¶
Debug version of Delete Database Item. Keys within protected and forbidden namespaces may be removed. Only availble when Moonraker's debug features are enabled.
Warning
This endpoint should be used for testing/debugging purposes only. Modifying protected namespaces outside of Moonraker can result in broken functionality and is not supported for production environments. Issues opened with reports/queries related to this endpoint will be redirected to this documentation and closed.
HTTP request:
DELETE /debug/database/item?namespace={namespace}&key={key}
JSON-RPC request:
{
"jsonrpc": "2.0",
"method": "debug.database.delete_item",
"params": {
"namespace": "{namespace}",
"key": "{key}"
},
"id": 4654
}
Test a notifier (debug)¶
You can trigger a notifier manually using this endpoint.
HTTP request:
POST /debug/notifiers/test?name=notifier_name
{
"jsonrpc": "2.0",
"method": "debug.notifiers.test",
"params": {
"name": "notifier_name"
},
"id": 4654
}
Parameters:
name: The name of the notifier to test.
Returns: Test results in the following format
{
"status": "success",
"stats": {
"print_duration": 0.0,
"total_duration": 0.0,
"filament_used": 0.0,
"filename": "notifier_test.gcode",
"state": "standby",
"message": ""
}
}
Websocket notifications¶
Printer generated events are sent over the websocket as JSON-RPC 2.0 notifications. These notifications are sent to all connected clients in the following format:
{
"jsonrpc": "2.0",
"method": "{event method name}"
}
{
"jsonrpc": "2.0",
"method": "{event method name}",
"params": [<event parameter>]
}
If a notification has parameters, the params value will always be
wrapped in an array as directed by the JSON-RPC standard. Currently
all notifications available are broadcast with either no parameters
or a single parameter.
Gcode Response¶
All of Klippy's gcode responses are forwarded over the websocket. They arrive as a "gcode_response" notification:
{
"jsonrpc": "2.0",
"method": "notify_gcode_response",
"params": ["response message"]
}
Subscriptions¶
Status Subscriptions arrive as a "notify_status_update" notification:
{
"jsonrpc": "2.0",
"method": "notify_status_update",
"params": [{<status object>}, <eventtime>]
}
status object is identical to the structure that is
returned from an object query's
status field.
The eventtime is a timestamp generated by Klipper when
the update was originally pushed. This timestamp is a float value,
relative to Klipper's monotonic clock.
Klippy Ready¶
Notify clients when Klippy has reported a ready state
{
"jsonrpc": "2.0",
"method": "notify_klippy_ready"
}
Klippy Shutdown¶
Notify clients when Klippy has reported a shutdown state
{
"jsonrpc": "2.0",
"method": "notify_klippy_shutdown"
}
Klippy Disconnected¶
Notify clients when Moonraker's connection to Klippy has terminated
{
"jsonrpc": "2.0",
"method": "notify_klippy_disconnected"
}
File List Changed¶
When a client makes a change to a file or directory in a registered
root (via upload, delete, move, etc) a notification is broadcast
to alert all connected clients of the change:
{
"jsonrpc": "2.0",
"method": "notify_filelist_changed",
"params": [
{
"action": "{action}",
"item": {
"path": "{file or directory path relative to root}",
"root": "{root}",
"size": 46458,
"modified": 545465,
"permissions": "rw"
},
"source_item": {
"path": "{file or directory path relative to root}",
"root": "{root_name}"
}
}
]
}
Note
The source_item field is only present for move_file and
move_dir actions.
The action field will be set to one of the following values:
create_filecreate_dirdelete_filedelete_dirmove_filemove_dirmodify_fileroot_update
Most of the above actions are self explanatory. The root_update
notification is sent when a root folder has changed its location.
This should be a rare event as folders are now managed in using the
data folder structure.
Notifications are bundled where applicable. For example, when a
directory containing children is deleted a single delete_dir notification
is pushed. Likewise, when a directory is moved or copied, a single
move_dir or create_dir notification is pushed. Children that are
moved, copied, or deleted as a result of a parent's action will
not receive individual notifications.
Update Manager Response¶
The update manager will send asynchronous messages to the client during an update:
{
"jsonrpc": "2.0",
"method": "notify_update_response",
"params": [
{
"application": "{app_name}",
"proc_id": 446461,
"message": "Update Response Message",
"complete": false
}
]
}
- The
applicationfield contains the name of application currently being updated. Generally this will be either "moonraker", "klipper", "system", or "client". - The
proc_idfield contains a unique id associated with the current update process. This id is generated for each update request. - The
messagefield contains an asynchronous message sent during the update process. - The
completefield is set to true on the final message sent during an update, indicating that the update completed successfully. Otherwise it will be false.
Update Manager Refreshed¶
The update manager periodically auto refreshes the state of each application it is tracking. After an auto refresh has completed the following notification is broadcast:
{
"jsonrpc": "2.0",
"method": "notify_update_refreshed",
"params": [{update_info}]}
update_info is an object that matches the response from an
update status request.
CPU Throttled¶
If the system supports throttled CPU monitoring Moonraker will send the following notification when it detects a change to the current throttled state:
{
"jsonrpc": "2.0",
"method": "notify_cpu_throttled",
"params": [{throttled_state}]
}
Where throttled_state is an object that matches the throttled_state field
in the response from a Moonraker process stats
request. It is possible for clients to receive this notification multiple times
if the system repeatedly transitions between an active and inactive throttled
condition.
Moonraker Process Statistic Update¶
Moonraker will emit the following notification each time it samples its process statistics:
{
"jsonrpc": "2.0",
"method": "notify_proc_stat_update",
"params": [{
"moonraker_stats": {
"time": 1615837812.0894408,
"cpu_usage": 1.99,
"memory": 23636,
"mem_units": "kB"
},
"cpu_temp": 44.008,
"network": {
"lo": {
"rx_bytes": 114555457,
"tx_bytes": 114555457,
"bandwidth": 2911.49
},
"wlan0": {
"rx_bytes": 48773134,
"tx_bytes": 115035939,
"bandwidth": 3458.77
}
},
"system_cpu_usage": {
"cpu": 2.53,
"cpu0": 3.03,
"cpu1": 5.1,
"cpu2": 1.02,
"cpu3": 1
},
"websocket_connections": 2
}]
}
As with the proc_stats request the cpu_temp
field will be set to null if the host machine does not support retrieving CPU
temperatures at /sys/class/thermal/thermal_zone0.
History Changed¶
If the [history] module is enabled the following notification is sent when
a job is added or finished:
{
"jsonrpc": "2.0",
"method": "notify_history_changed",
"params": [
{
"action": "added",
"job": <job object>
}
]
}
action field may be added or finished. The job field contains
an object matches the one returned when requesting
job data.
Authorized User Created¶
If the [authorization] module is enabled the following notification is
sent when a new user is created:
{
"jsonrpc": "2.0",
"method": "notify_user_created",
"params": [
{
"username": "<username>"
}
]
}
Authorized User Deleted¶
If the [authorization] module is enabled the following notification is
sent when an existing user is deleted.
{
"jsonrpc": "2.0",
"method": "notify_user_deleted",
"params": [
{
"username": "<username>"
}
]
}
Authorized User Logged Out¶
If the [authorization] module is enabled the following notification is
sent when an existing user is logged out.
{
"jsonrpc": "2.0",
"method": "notify_user_logged_out",
"params": [
{
"username": "<username>"
}
]
}
Service State Changed¶
Moonraker monitors the state of systemd services it is authorized to track. When the state of a service changes the following notification is sent:
{
"jsonrpc": "2.0",
"method": "notify_service_state_changed",
"params": [
{
"klipper": {
"active_state": "inactive",
"sub_state": "dead"
}
}
]
}
The example above shows that the klipper service has changed to inactive.
Job Queue Changed¶
Moonraker will send a job_queue_changed notification when a change is
detected to the queue state or the queue itself:
{
"jsonrpc": "2.0",
"method": "notify_job_queue_changed",
"params": [
{
"action": "state_changed",
"updated_queue": null,
"queue_state": "paused"
}
]
}
The object sent with the notification contains the following fields:
action: The action taken to the queue which led to the notification. Will be a string set to one of the following values:state_changed: The queue state has changedjobs_added: One or more jobs were added to the queuejobs_removed: One or more jobs were removed from the queuejob_loaded: A job was popped off the queue and successfully started
updated_queue: If the queue itself is changed this will be a list containing each item in the queue. If the queue has not changed this will benull.queue_state: The current queue state
Button Event¶
Moonraker [button] components may be configured to emit websocket
notifications.
{
"jsonrpc": "2.0",
"method": "notify_button_event",
"params": [
{
"name": "my_button",
"type": "gpio",
"event": {
"elapsed_time": 0.09323832602240145,
"received_time": 698614.214597004,
"render_time": 698614.214728513,
"pressed": false
},
"aux": null
}
]
}
The params array will always contain a single object with the following
fields:
name: The name of the configured buttontype: The button type, currently this will always begpioevent: An object with details about the button event, containing the following fields:elapsed_time: The time elapsed (in seconds) since the last detected button eventreceived_time: The time the event was detected according to asyncio's monotonic clock. Note that this is not in "unix time".render_time: The time the template was rendered (began execution) according to asyncio's monotonic clock. It is possible execution of an event may be delayed well beyond thereceived_time.pressed: A boolean value to indicate if the button is currently pressed.
aux: This is an optional field where the button may specify any json encodable value. Clients may suggest a specific button configuration that includes details about the event. If no aux parameter is specified in the configuration this will be anullvalue.
Announcement update event¶
Moonraker will emit the notify_announcement_update notification when
a announcement entries are added or removed:
{
"jsonrpc": "2.0",
"method": "notify_announcement_update",
"params": [
{
"entries": [
{
"entry_id": "arksine/moonlight/issue/3",
"url": "https://github.com/Arksine/moonlight/issues/3",
"title": "Test announcement 3",
"description": "Test Description [with a link](https://moonraker.readthedocs.io).",
"priority": "normal",
"date": 1647459219,
"dismissed": false,
"date_dismissed": null,
"dismiss_wake": null,
"source": "moonlight",
"feed": "moonlight"
},
{
"entry_id": "arksine/moonlight/issue/2",
"url": "https://github.com/Arksine/moonlight/issues/2",
"title": "Announcement Test Two",
"description": "This is a high priority announcement. This line is included in the description.",
"priority": "high",
"date": 1646855579,
"dismissed": false,
"date_dismissed": null,
"dismiss_wake": null,
"source": "moonlight",
"feed": "moonlight"
}
{
"entry_id": "arksine/moonraker/issue/349",
"url": "https://github.com/Arksine/moonraker/issues/349",
"title": "PolicyKit warnings; unable to manage services, restart system, or update packages",
"description": "This announcement is an effort to get ahead of a coming change that will certainly result in issues. PR #346 has been merged, and with it are some changes to Moonraker's default behavior.",
"priority": "normal",
"date": 1643392406,
"dismissed": false,
"source": "moonlight",
"feed": "Moonraker"
}
]
}
]
}
The params array will contain an object with all current announcement entries.
This object is identical to that returned by the
list announcements endpoint.
Announcement dismissed event¶
Moonraker will emit the notify_announcement_dismissed notification when
a dismissed announcement is detected:
{
"jsonrpc": "2.0",
"method": "notify_announcement_dismissed",
"params": [
{
"entry_id": "arksine/moonlight/issue/3"
}
]
}
The params array will contain an object with the entry_id of the dismissed
announcement.
Announcement wake event¶
Moonraker will emit the notify_announcement_wake notification when
a specified wake_time for a dismissed announcement has expired.
{
"jsonrpc": "2.0",
"method": "notify_announcement_wake",
"params": [
{
"entry_id": "arksine/moonlight/issue/1"
}
]
}
The params array will contain an object with the entry_id of the
announcement that is no longer dismissed.
Sudo alert event¶
Moonraker will emit the notify_sudo_alert notification when
a component has requested sudo access. The event is also emitted
when a sudo request has been granted.
{
"jsonrpc": "2.0",
"method": "notify_sudo_alert",
"params": [
{
"sudo_requested": true,
"sudo_messages": [
"Sudo password required to update Moonraker's systemd service."
]
}
]
}
The params array contains an object with the following fields:
sudo_requested: Returns true if Moonraker is currently requesting sudo access.request_messages: An array of strings, each string describing a pending sudo request. The array will be empty if no sudo requests are pending.
Webcams changed event¶
Moonraker will emit the notify_webcams_changed event when a configured
webcam is added, removed, or updated.
{
"jsonrpc": "2.0",
"method": "notify_webcams_changed",
"params": [
{
"webcams": [
{
"name": "tc2",
"location": "printer",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 15,
"target_fps_idle": 5,
"stream_url": "http://printer.lan/webcam?action=stream",
"snapshot_url": "http://printer.lan/webcam?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "database"
},
{
"name": "TestCam",
"location": "printer",
"service": "mjpegstreamer",
"enabled": true,
"icon": "mdiWebcam",
"target_fps": 15,
"target_fps_idle": 5,
"stream_url": "/webcam/?action=stream",
"snapshot_url": "/webcam/?action=snapshot",
"flip_horizontal": false,
"flip_vertical": false,
"rotation": 0,
"aspect_ratio": "4:3",
"extra_data": {},
"source": "database"
}
]
}
]
}
The webcams field contans an array of objects like those returned by the
list webcams API.
Spoolman active spool ID changed¶
Moonraker will emit the notify_active_spool_set event when the active spool
ID for the Spoolman integration has been changed.
See the Spoolman API for more information.
{
"jsonrpc": "2.0",
"method": "notify_active_spool_set",
"params": [
{
"spool_id": 1
}
]
}
Spoolman Status Changed¶
Moonraker will emit the notify_spoolman_status_changed event when the
connection state to the Spoolman service has changed:
{
"jsonrpc": "2.0",
"method": "notify_spoolman_status_changed",
"params": [
{
"spoolman_connected": false
}
]
}
Agent Events¶
Moonraker will emit the notify_agent_event notification when it
an agent event is received.
{
"jsonrpc": "2.0",
"method": "notify_agent_event",
"params": [
{
"agent": "moonagent",
"event": "connected",
"data": {
"name": "moonagent",
"version": "0.0.1",
"type": "agent",
"url": "https://github.com/arksine/moontest"
}
}
]
}
When an agent connects, all connections will receive a connected event
for that agent, with its identity info in the data field. When an agent
disconnects clients will receive a disconnected event with the data field
omitted. All other events are determined by the agent, where each event may
or may not include optional data.
Sensor Events¶
Moonraker will emit a sensors:sensor_update notification when a measurement
from at least one monitored sensor changes.
{
"jsonrpc": "2.0",
"method": "sensors:sensor_update",
"params": [
{
"sensor1": {
"humidity": 28.9,
"temperature": 22.4
}
}
]
}
When a sensor reading changes, all connections will receive a
sensors:sensor_update event where the params contains a data struct
with the sensor id as the key and the sensors letest measurements as value
struct.
Appendix¶
Websocket setup¶
The websocket is located at ws://host:port/websocket, for example:
var s = new WebSocket("ws://" + location.host + "/websocket");
Tip
A client using API Key authorization may request a oneshot token, applying the result to the websocket request's query string:
ws://host:port/websocket?token={32 character base32 string}
The following startup sequence is recommended for clients which make use of the websocket:
- Attempt to connect to
/websocketuntil successful using a timer-like mechanism - Once connected, query
/server/info(orserver.info) for the ready status.- If the response returns an error (such as 404) then either the client
is not authorized or Moonraker is not running. Direct the user to
SSH into the machine and check
/tmp/moonraker.log. - If the response returns success, check the result's
klippy_statefield:klippy_state == "ready": you may proceed to request status of printer objects make subscriptions, get the file list, etc.klippy_state == "error": Klippy has experienced an error starting upklippy_state == "shutdown": Klippy is in a shutdown state.klippy_state == "startup": re-request/server/infoin 2 seconds.- If
errororshutdownis detected it might be wise to prompt the user. You can get a description from thestate_messagefield of a/printer/inforequest.
- If
- If the response returns an error (such as 404) then either the client
is not authorized or Moonraker is not running. Direct the user to
SSH into the machine and check
- Repeat step 2 until Klipper reports ready.
- Clients should watch for the
notify_klippy_disconnectedevent. If received then Klippy has either been stopped or restarted. In this state the client should repeat the steps above to determine when klippy is ready.
Basic Print Status¶
An advanced client will likely use subscriptions and notifications to interact with Moonraker, however simple clients such as home automation software and embedded devices (ie: ESP32) may only wish to monitor the status of a print. Below is a high level walkthrough for receiving print state via polling.
- Set up a timer to poll at the desired interval. Depending on your use case, 1 to 2 seconds is recommended.
-
On each cycle, issue the following request:
GET http://host/printer/objects/query?webhooks&virtual_sdcard&print_statsOr via JSON-RPC 2.0:
{ "jsonrpc": "2.0", "method": "printer.objects.query", "params": { "objects": { "webhooks": null, "virtual_sdcard": null, "print_stats": null } }, "id": 5664 } -
If the request returns an error or the returned
result.statusis an empty object, then this is an indication that Klippy either experienced an error or it is not properly configured. Each queried object should be available inresult.status. The client should check to make sure that all objects are received before proceeding. - Inspect
webhooks.ready. If the value is notreadythe printer is not available.webhooks.messagecontains a message pertaining to the current state. - If the printer is ready, inspect
print_stats.state. It may be one of the following values:standby: No print in progressprinting: The printer is currently printingpaused: A print in progress has been pausederror: The print exited with an error.print_stats.messagecontains a related error messagecomplete: The last print has completed
- If
print_stats.stateis notstandbythenprint_stats.filenamewill report the name of the currently loaded file. -
print_stats.filenamecan be used to fetch file metadata. It is only necessary to fetch metadata once per print.GET http://host/server/files/metadata?filename=<filename>Or via JSON-RPC 2.0:
{ "jsonrpc": "2.0", "method": "server.files.metadata", "params": { "filename": "{filename}" }, "id": 5643 }If metadata extraction failed then this request will return an error. Some metadata fields are only populated for specific slicers, and unsupported slicers will only return the size and modified date.
-
There are multiple ways to calculate the ETA, this example will use file progress, as it is possible calculate the ETA with or without metadata.
-
If
metadata.estimated_timeis available, the eta calculation can be done as:// assume "result" is the response from the status query let vsd = result.status.virtual_sdcard; let prog_time = vsd.progress * metadata.estimated_time; let eta = metadata.estimated_time - prog_timeAlternatively, one can simply subtract the print duration from the estimated time:
// assume "result" is the response from the status query let pstats = result.status.print_status; let eta = metadata.estimated_time - pstats.print_duration; if (eta < 0) eta = 0; -
If no metadata is available, print duration and progress can be used to calculate the ETA:
// assume "result" is the response from the status query let vsd = result.status.virtual_sdcard; let pstats = result.status.print_stats; let total_time = pstats.print_duration / vsd.progress; let eta = total_time - pstats.print_duration;
-
-
It is possible to query additional objects if a client wishes to display more information (ie: temperatures). See the Printer Objects documentation for details.
Bed Mesh Coordinates¶
The Bed Mesh printer object may be used to generate three dimensional coordinates of a probed area (or mesh). Below is an example (in javascript) of how to transform the data received from a bed_mesh object query into an array of 3D coordinates.
// assume that we have executed an object query for bed_mesh and have the
// result. This example generates 3D coordinates for the probed matrix,
// however it would work with the mesh matrix as well
function process_mesh(result) {
let bed_mesh = result.status.bed_mesh
let matrix = bed_mesh.probed_matrix;
if (!(matrix instanceof Array) || matrix.length < 3 ||
!(matrix[0] instanceof Array) || matrix[0].length < 3)
// make sure that the matrix is valid
return;
let coordinates = [];
let x_distance = (bed_mesh.mesh_max[0] - bed_mesh.mesh_min[0]) /
(matrix[0].length - 1);
let y_distance = (bed_mesh.mesh_max[1] - bed_mesh.mesh_min[1]) /
(matrix.length - 1);
let x_idx = 0;
let y_idx = 0;
for (const x_axis of matrix) {
x_idx = 0;
let y_coord = bed_mesh.mesh_min[1] + (y_idx * y_distance);
for (const z_coord of x_axis) {
let x_coord = bed_mesh.mesh_min[0] + (x_idx * x_distance);
x_idx++;
coordinates.push([x_coord, y_coord, z_coord]);
}
y_idx++;
}
}
// Use the array of coordinates visualize the probed area
// or mesh..
Converting to Unix Time¶
Some of Moonraker's APIs return a date represented in Unix time. Most languages have functionality built in to convert Unix time to a workable object or string. For example, in JavaScript one might do something like the following:
for (let resp of result.gcode_store) {
let date = new Date(resp.time * 1000);
// Do something with date and resp.message ...
}
Announcements¶
Moonraker announcements are effectively push notifications that can be used to notify users of important information related the development and status of software in the Klipper ecosystem. This section will provide an overview of how the announcement system works, how to set up a dev environment, and provide recommendations on client implementation.
How announcements work¶
Moonraker announcements are GitHub issues tagged with the announcement
label. GitHub repos may registered with
moonlight, which is responsible
for generating RSS feeds from GitHub issues using GitHub's REST API. These
RSS feeds are hosted on GitHub Pages, for example Moonraker's feed may be found
here. By
centralizing GitHub API queries in moonlight we are able to poll multiple
repos without running into API rate limit issues. Moonlight has has a workflow
that checks all registered repos for new announcements every 30 minutes. In
theory it would be able to check for announcements in up to 500 repos before
exceeding GitHub's API rate limit.
Moonraker's [announcements] component will always check the klipper and
moonraker RSS feeds. It is possible to configure additional RSS feeds by
adding them to the subscriptions option. The component will poll configured
feeds every 30 minutes, resulting in maximum of 1 hour for new announcements
to reach all users.
When new issues are tagged with announcement these entries will be parsed
and added to the RSS feeds. When the issue is closed they will be removed from
the corresponding feed. Moonlight will fetch up to 20 announcements for each
feed, if a repo goes over this limit older announcements will be removed.
Note
It is also possible for Moonraker to generate announcements itself. For example, if a Moonraker component needs user feedback it may generate an announcement and notify all connected clients. From a client's perspective there is no need to treat announcements differently than any other announcement.
Setting up the dev environment¶
Moonraker provides configuration to parse announcements from a local folder so that it is possible to manually add and remove entries, allowing client developers to perform integration tests:
# moonraker.conf
[announcements]
dev_mode: True
With dev_mode enabled, Moonraker will look formoonraker.xml and
klipper.xml in the following folder:
~/moonraker/.devel/announcement_xml
If moonraker is not installed in the home folder then substitute ~
for the parent folder location. This folder is in a hardcoded location
to so as not to expose users to vulnerabilities associated with parsing XML.
It is possible to configure Moonraker to search for your own feeds:
# moonraker.conf
[announcements]
subscription:
my_project
dev_mode: True
The above configuration would look for my_project.xml in addition to
klipper.xml and moonraker.xml. The developer may manually create
the xml feeds or they may clone moonlight and leverage its script
to generate a feed from issues created on their test repo. When local
feeds have been modified one may call the update announcements API to have Moonraker fetch the updates and add/remove
entries.
RSS file structure¶
Moonlight generates RSS feeds in XML format. Below is an example generated from moonlight's own issue tracker:
<?xml version='1.0' encoding='utf-8'?>
<rss version="2.0" xmlns:moonlight="https://arksine.github.io/moonlight">
<channel>
<title>arksine/moonlight</title>
<link>https://github.com/Arksine/moonlight</link>
<description>RSS Announcements for Moonraker</description>
<pubDate>Tue, 22 Mar 2022 23:19:04 GMT</pubDate>
<moonlight:configHash>f2912192bf0d09cf18d8b8af22b2d3501627043e5afa3ebff0e45e4794937901</moonlight:configHash>
<item>
<title>Test announcement 3</title>
<link>https://github.com/Arksine/moonlight/issues/3</link>
<description>Test Description [with a link](https://moonraker.readthedocs.io).</description>
<pubDate>Wed, 16 Mar 2022 19:33:39 GMT</pubDate>
<category>normal</category>
<guid>arksine/moonlight/issue/3</guid>
</item>
<item>
<title>Announcement Test Two</title>
<link>https://github.com/Arksine/moonlight/issues/2</link>
<description>This is a high priority announcement. This line is included in the description.</description>
<pubDate>Wed, 09 Mar 2022 19:52:59 GMT</pubDate>
<category>high</category>
<guid>arksine/moonlight/issue/2</guid>
</item>
<item>
<title>Announcement Test One</title>
<link>https://github.com/Arksine/moonlight/issues/1</link>
<description>This is the description. Anything here should appear in the announcement, up to 512 characters.</description>
<pubDate>Wed, 09 Mar 2022 19:37:58 GMT</pubDate>
<category>normal</category>
<guid>arksine/moonlight/issue/1</guid>
</item>
</channel>
</rss>
Each xml file may contain only one <rss> element, and each <rss> element
may contain only one channel. All items must be present aside from
moonlight:configHash, which is used by the workflow to detect changes to
moonlight's configuration. Most elements are self explanatory, developers will
be most interested in adding and removing <item> elements, as these are
the basis for entries in Moonraker's announcement database.
Generating announcements from your own repo¶
As mentioned previously, its possible to clone moonlight and use its rss script to generate announcements from issues in your repo:
cd ~
git clone https://github.com/arksine/moonlight
cd moonlight
virtualenv -p /usr/bin/python3 .venv
source .venv/bin/activate
pip install httpx[http2]
deactivate
To add your repo edit ~/moonlight/src/config.json:
{
"moonraker": {
"repo_owner": "Arksine",
"repo_name": "moonraker",
"description": "API Host For Klipper",
"authorized_creators": ["Arksine"]
},
"klipper": {
"repo_owner": "Klipper3d",
"repo_name": "klipper",
"description": "A 3D Printer Firmware",
"authorized_creators": ["KevinOConnor"]
},
// Add your test repo info here. It should contain
// fields matching those in "moonraker" and "klipper"
// shown above.
}
Once your repo is added, create one or more issues on your GitHub
repo tagged with the announcement label. Add the critical label to
one if you wish to test high priority announcements. You may need to
create these labels in your repo before they can be added.
Now we can use moonlight to generate the xml files:
cd ~/moonlight
source .venv/bin/activate
src/update_rss.py
deactivate
After the script has run it will generate the configured RSS feeds
and store them in ~/moonlight/assets. If using this method it may
be useful to create a symbolic link to it in Moonraker's devel folder:
cd ~/moonraker
mkdir .devel
cd .devel
ln -s ~/moonlight/assets announcement_xml
If you haven't done so, configure Moonraker to subscribe to your feed and restart the Moonraker service. Otherwise you may call the announcement update API to have Moonraker parse the announcements from your test feed.
Implementation details and recommendations¶
When Moonraker detects a change to one or more feeds it will fire the announcement update notification. It is also possible to query the API for announcements. Both the notification and the API return a list of announcement entries, where each entry is an object containing the following fields:
entry_id: A unique ID derived for each entry. Typically this is in the form of{owner}/{repo}/issue/{issue number}.url: The url to the full announcement. This is generally a link to an issue on GitHub.title: Announcement title, will match the title of the issue on GitHub.description: The first paragraph of the announcement. Anything over 512 characters will be truncated.priority: Can benormalorhigh. It is recommended that clients immediately alert the user when one or morehighpriority announcments are present. Issued tagged with thecriticallabel will be assigned ahighpriority.date: The announcement creation date in unix time.dismissed: If set totruethis announcement has been previously dismisseddate_dismissed: The date the announcement was dismissed in unix time. If the announcement has not been dismissed this value isnull.dismiss_wake: If the announcement was dismissed with awake_timespecified this is the time (in unix time) at which thedismissedstate will revert. If the announcement is not dismissed or dismissed indefinitely this value will benull.source: The source from which the announcement was generated. Can bemoonlightorinternal.feed: The RSS feed for moonlight announcements. For example, this could beMoonrakerorKlipper. If the announcement was generated internally this should match the name of the component that generated the announcement.
When a client first connects to Moonraker it is recommended that the list announcements API is called to retrieve the current list of entries. A client may then watch for the announcement update and announcement dismissed notifications and update the UI accordingly.
Client devs should decide how they want to present announcements to users. They could be treated as any other notification, for example a client
may have a notification icon that shows the current number of unread
announcements. Clients can mark an announcement as read by calling
the dismiss announcement API. Any announcement
entry with dismissed = true should be considered read.
When a high priority announcement is detected it is recommended that
clients present the announcement in a format that is immediately visible
to the user. That said, it may be wise to allow users to opt out of
this behavior via configuration.
Note
If an announcement is dismissed, closed, then reopened the
dismissed flag will reset to false. This is expected behavior
as announcements are pruned from the database when they are no
longer present in feeds. It isn't valid for repo maintaners
to re-open a closed announcement. That said, its fine to close
and re-open issues during development and testing using repos
that are not yet registered with moonlight.