node-ari-client

This module contains the Node.js client library for the Asterisk REST Interface. It builds upon the swagger-js library, providing an improved, Asterisk-specific API over the API generated by swagger-js.

Usage

Installation

$ npm install ari-client

API

The client exposes a connect function that can be used to connect to an instance of ARI and to configure a client with all available resources and operations.

Callbacks:

var client = require('ari-client');
client.connect(url, username, password, function (err, ari) {})

Promises:

var client = require('ari-client');
client.connect(url, username, password)
  .then(function (ari) {})
  .catch(function (err) {});

Upon connecting, a callback will be called passing a reference to a client with all available resources attached.

ari.bridges, ari.channels, ari.endpoints...

Those properties expose operations that can be performed for that given resource.

Callbacks:

ari.bridges.list(function (err, bridges) {});
ari.bridges.get({bridgeId: 'uniqueid'}, function (err, bridge) {});

Promises:

ari.bridges.list()
  .then(function (bridges) {})
  .catch(function (err) {});

ari.bridges.get({bridgeId: 'uniqueid'})
  .then(function (bridge) {})
  .catch(function (err) {});

Operations that return a resource or a list of resources expose the same operations tied to that given instance.

bridge.addChannel({channel: 'uniqueid'});

Note that the bridge id was not required since the operation was called from a resource instance. The above operation is equivalent to the following:

ari.bridges.addChannel({bridgeId: 'uniqueid', channel: 'uniqueid'});

The client also exposes functions to create new resources.

ari.Bridge(), ari.Channel(), ari.Playback(), ari.LiveRecording()

The instance returned by these functions can then be used to call a create operations in ARI.

Callbacks:

var bridge = ari.Bridge();
bridge.create(function (err, bridge) {});

Promises:

var bridge = ari.Bridge();
bridge.create()
  .then(function (bridge) {})
  .catch(function (err) {});

Note that the create operation returns an updated copy of the bridge after creation.

Using this method of resource creation, it is possible to register event listeners for a resource before it is created in ARI.

Callbacks:

var channel = ari.Channel();
channel.on('StasisStart', function (event, channel) {});
channel.on('ChannelDtmfReceived', function (event, channel) {});
channel.originate(
    {endpoint: 'PJSIP/1000', app: 'application', appArgs: 'dialed'},
    function (err, channel) {}
);

Promises:

var channel = ari.Channel();
channel.on('StasisStart', function (event, channel) {});
channel.on('ChannelDtmfReceived', function (event, channel) {});
channel.originate({endpoint: 'PJSIP/1000', app: 'application', appArgs: 'dialed'})
  .then(function (channel) {})
  .catch(function (err) {});

Some create operations require an instance be passed in for this to work.

Callbacks:

var playback = ari.Playback();
channel.play({media: 'sound:hello-world'}, playback, function (err, playback) {});

Promises:

var playback = ari.Playback();
channel.play({media: 'sound:hello-world'}, playback)
  .then(function (playback) {})
  .catch(function (err) {});

If you are using the client directly to call a create operation instead of using an instance, you will have to pass the appropriate ids as part of the options to the create operation.

Callbacks:

var playback = ari.Playback();
ari.channels.play({
  media: 'sound:hello-world',
  channelId: channel.id,
  playbackId: playback.id
}, function (err, playback) {});

Promises:

var playback = ari.Playback();
ari.channels.play({
  media: 'sound:hello-world',
  channelId: channel.id,
  playbackId: playback.id
}).then(function (playback) {}).catch(function (err) {});

Operations

The following operations are defined:

applications

filter

Filter application events types.

Callbacks:

ari.applications.filter(
  {applicationName: val},
  function (err, application) {}
);

Promises:

ari.applications.filter({
    applicationName: val
})
  .then(function (application) {})
  .catch(function (err) {});

Available Parameters

• applicationName (string) - Application's name
• filter (object) - Specify which event types to allow/disallow

get

Get details of an application.

Callbacks:

ari.applications.get(
  {applicationName: val},
  function (err, application) {}
);

Promises:

ari.applications.get({
    applicationName: val
})
  .then(function (application) {})
  .catch(function (err) {});

Available Parameters

• applicationName (string) - Application's name

list

List all applications.

Callbacks:

ari.applications.list(
  function (err, applications) {}
);

Promises:

ari.applications.list()
  .then(function (applications) {})
  .catch(function (err) {});

subscribe

Subscribe an application to a event source.

Callbacks:

ari.applications.subscribe(
  {applicationName: val, eventSource: val},
  function (err, application) {}
);

Promises:

ari.applications.subscribe({
    applicationName: val,
    eventSource: val
})
  .then(function (application) {})
  .catch(function (err) {});

Available Parameters

• applicationName (string) - Application's name
• eventSource (string) - URI for event source (channel:{channelId}, bridge:{bridgeId}, endpoint:{tech}[/{resource}], deviceState:{deviceName}

unsubscribe

Unsubscribe an application from an event source.

Callbacks:

ari.applications.unsubscribe(
  {applicationName: val, eventSource: val},
  function (err, application) {}
);

Promises:

ari.applications.unsubscribe({
    applicationName: val,
    eventSource: val
})
  .then(function (application) {})
  .catch(function (err) {});

Available Parameters

• applicationName (string) - Application's name
• eventSource (string) - URI for event source (channel:{channelId}, bridge:{bridgeId}, endpoint:{tech}[/{resource}], deviceState:{deviceName}

asterisk

addLog

Adds a log channel.

Callbacks:

ari.asterisk.addLog(
  {configuration: val, logChannelName: val},
  function (err) {}
);

Promises:

ari.asterisk.addLog({
    configuration: val,
    logChannelName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• configuration (string) - levels of the log channel
• logChannelName (string) - The log channel to add

deleteLog

Deletes a log channel.

Callbacks:

ari.asterisk.deleteLog(
  {logChannelName: val},
  function (err) {}
);

Promises:

ari.asterisk.deleteLog({
    logChannelName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• logChannelName (string) - Log channels name

deleteObject

Delete a dynamic configuration object.

Callbacks:

ari.asterisk.deleteObject(
  {configClass: val, id: val, objectType: val},
  function (err) {}
);

Promises:

ari.asterisk.deleteObject({
    configClass: val,
    id: val,
    objectType: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• configClass (string) - The configuration class containing dynamic configuration objects.
• id (string) - The unique identifier of the object to delete.
• objectType (string) - The type of configuration object to delete.

getGlobalVar

Get the value of a global variable.

Callbacks:

ari.asterisk.getGlobalVar(
  {variable: val},
  function (err, variable) {}
);

Promises:

ari.asterisk.getGlobalVar({
    variable: val
})
  .then(function (variable) {})
  .catch(function (err) {});

Available Parameters

• variable (string) - The variable to get

getInfo

Gets Asterisk system information.

Callbacks:

ari.asterisk.getInfo(
  function (err, asteriskinfo) {}
);

Promises:

ari.asterisk.getInfo()
  .then(function (asteriskinfo) {})
  .catch(function (err) {});

Available Parameters

• only (string) - Filter information returned

getModule

Get Asterisk module information.

Callbacks:

ari.asterisk.getModule(
  {moduleName: val},
  function (err, module) {}
);

Promises:

ari.asterisk.getModule({
    moduleName: val
})
  .then(function (module) {})
  .catch(function (err) {});

Available Parameters

• moduleName (string) - Module's name

getObject

Retrieve a dynamic configuration object.

Callbacks:

ari.asterisk.getObject(
  {configClass: val, id: val, objectType: val},
  function (err, configtuples) {}
);

Promises:

ari.asterisk.getObject({
    configClass: val,
    id: val,
    objectType: val
})
  .then(function (configtuples) {})
  .catch(function (err) {});

Available Parameters

• configClass (string) - The configuration class containing dynamic configuration objects.
• id (string) - The unique identifier of the object to retrieve.
• objectType (string) - The type of configuration object to retrieve.

listLogChannels

Gets Asterisk log channel information.

Callbacks:

ari.asterisk.listLogChannels(
  function (err, logchannels) {}
);

Promises:

ari.asterisk.listLogChannels()
  .then(function (logchannels) {})
  .catch(function (err) {});

listModules

List Asterisk modules.

Callbacks:

ari.asterisk.listModules(
  function (err, modules) {}
);

Promises:

ari.asterisk.listModules()
  .then(function (modules) {})
  .catch(function (err) {});

loadModule

Load an Asterisk module.

Callbacks:

ari.asterisk.loadModule(
  {moduleName: val},
  function (err) {}
);

Promises:

ari.asterisk.loadModule({
    moduleName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• moduleName (string) - Module's name

ping

Response pong message.

Callbacks:

ari.asterisk.ping(
  function (err, asteriskping) {}
);

Promises:

ari.asterisk.ping()
  .then(function (asteriskping) {})
  .catch(function (err) {});

reloadModule

Reload an Asterisk module.

Callbacks:

ari.asterisk.reloadModule(
  {moduleName: val},
  function (err) {}
);

Promises:

ari.asterisk.reloadModule({
    moduleName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• moduleName (string) - Module's name

rotateLog

Rotates a log channel.

Callbacks:

ari.asterisk.rotateLog(
  {logChannelName: val},
  function (err) {}
);

Promises:

ari.asterisk.rotateLog({
    logChannelName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• logChannelName (string) - Log channel's name

setGlobalVar

Set the value of a global variable.

Callbacks:

ari.asterisk.setGlobalVar(
  {variable: val},
  function (err) {}
);

Promises:

ari.asterisk.setGlobalVar({
    variable: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• value (string) - The value to set the variable to
• variable (string) - The variable to set

unloadModule

Unload an Asterisk module.

Callbacks:

ari.asterisk.unloadModule(
  {moduleName: val},
  function (err) {}
);

Promises:

ari.asterisk.unloadModule({
    moduleName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• moduleName (string) - Module's name

updateObject

Create or update a dynamic configuration object.

Callbacks:

ari.asterisk.updateObject(
  {configClass: val, id: val, objectType: val},
  function (err, configtuples) {}
);

Promises:

ari.asterisk.updateObject({
    configClass: val,
    id: val,
    objectType: val
})
  .then(function (configtuples) {})
  .catch(function (err) {});

Available Parameters

• configClass (string) - The configuration class containing dynamic configuration objects.
• fields (containers) - The body object should have a value that is a list of ConfigTuples, which provide the fields to update. Ex. [ { "attribute": "directmedia", "value": "false" } ]
• id (string) - The unique identifier of the object to create or update.
• objectType (string) - The type of configuration object to create or update.

bridges

addChannel

Add a channel to a bridge.

Callbacks:

ari.bridges.addChannel(
  {bridgeId: val, channel: val},
  function (err) {}
);

Promises:

ari.bridges.addChannel({
    bridgeId: val,
    channel: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• absorbDTMF (boolean) - Absorb DTMF coming from this channel, preventing it to pass through to the bridge
• bridgeId (string) - Bridge's id
• channel (string) - Ids of channels to add to bridge
• mute (boolean) - Mute audio from this channel, preventing it to pass through to the bridge
• role (string) - Channel's role in the bridge

clearVideoSource

Removes any explicit video source in a multi-party mixing bridge. This operation has no effect on bridges with two or fewer participants. When no explicit video source is set, talk detection will be used to determine the active video stream.

Callbacks:

ari.bridges.clearVideoSource(
  {bridgeId: val},
  function (err) {}
);

Promises:

ari.bridges.clearVideoSource({
    bridgeId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id

create

Create a new bridge.

Callbacks:

ari.bridges.create(
  function (err, bridge) {}
);

Promises:

ari.bridges.create()
  .then(function (bridge) {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Unique ID to give to the bridge being created.
• name (string) - Name to give to the bridge being created.
• type (string) - Comma separated list of bridge type attributes (mixing, holding, dtmf_events, proxy_media, video_sfu).

createWithId

Create a new bridge or updates an existing one.

Callbacks:

ari.bridges.createWithId(
  {bridgeId: val},
  function (err, bridge) {}
);

Promises:

ari.bridges.createWithId({
    bridgeId: val
})
  .then(function (bridge) {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Unique ID to give to the bridge being created.
• name (string) - Set the name of the bridge.
• type (string) - Comma separated list of bridge type attributes (mixing, holding, dtmf_events, proxy_media, video_sfu) to set.

destroy

Shut down a bridge.

Callbacks:

ari.bridges.destroy(
  {bridgeId: val},
  function (err) {}
);

Promises:

ari.bridges.destroy({
    bridgeId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id

get

Get bridge details.

Callbacks:

ari.bridges.get(
  {bridgeId: val},
  function (err, bridge) {}
);

Promises:

ari.bridges.get({
    bridgeId: val
})
  .then(function (bridge) {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id

list

List all active bridges in Asterisk.

Callbacks:

ari.bridges.list(
  function (err, bridges) {}
);

Promises:

ari.bridges.list()
  .then(function (bridges) {})
  .catch(function (err) {});

play

Start playback of media on a bridge.

Callbacks:

ari.bridges.play(
  {bridgeId: val, media: val},
  function (err, playback) {}
);

Promises:

ari.bridges.play({
    bridgeId: val,
    media: val
})
  .then(function (playback) {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id
• lang (string) - For sounds, selects language for sound.
• media (string) - Media URIs to play.
• offsetms (int) - Number of milliseconds to skip before playing. Only applies to the first URI if multiple media URIs are specified.
• playbackId (string) - Playback Id.
• skipms (int) - Number of milliseconds to skip for forward/reverse operations.

playWithId

Start playback of media on a bridge.

Callbacks:

ari.bridges.playWithId(
  {bridgeId: val, media: val, playbackId: val},
  function (err, playback) {}
);

Promises:

ari.bridges.playWithId({
    bridgeId: val,
    media: val,
    playbackId: val
})
  .then(function (playback) {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id
• lang (string) - For sounds, selects language for sound.
• media (string) - Media URIs to play.
• offsetms (int) - Number of milliseconds to skip before playing. Only applies to the first URI if multiple media URIs are specified.
• playbackId (string) - Playback ID.
• skipms (int) - Number of milliseconds to skip for forward/reverse operations.

record

Start a recording.

Callbacks:

ari.bridges.record(
  {bridgeId: val, format: val, name: val},
  function (err, liverecording) {}
);

Promises:

ari.bridges.record({
    bridgeId: val,
    format: val,
    name: val
})
  .then(function (liverecording) {})
  .catch(function (err) {});

Available Parameters

• beep (boolean) - Play beep when recording begins
• bridgeId (string) - Bridge's id
• format (string) - Format to encode audio in
• ifExists (string) - Action to take if a recording with the same name already exists.
• maxDurationSeconds (int) - Maximum duration of the recording, in seconds. 0 for no limit.
• maxSilenceSeconds (int) - Maximum duration of silence, in seconds. 0 for no limit.
• name (string) - Recording's filename
• terminateOn (string) - DTMF input to terminate recording.

removeChannel

Remove a channel from a bridge.

Callbacks:

ari.bridges.removeChannel(
  {bridgeId: val, channel: val},
  function (err) {}
);

Promises:

ari.bridges.removeChannel({
    bridgeId: val,
    channel: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id
• channel (string) - Ids of channels to remove from bridge

setVideoSource

Set a channel as the video source in a multi-party mixing bridge. This operation has no effect on bridges with two or fewer participants.

Callbacks:

ari.bridges.setVideoSource(
  {bridgeId: val, channelId: val},
  function (err) {}
);

Promises:

ari.bridges.setVideoSource({
    bridgeId: val,
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id
• channelId (string) - Channel's id

startMoh

Play music on hold to a bridge or change the MOH class that is playing.

Callbacks:

ari.bridges.startMoh(
  {bridgeId: val},
  function (err) {}
);

Promises:

ari.bridges.startMoh({
    bridgeId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id
• mohClass (string) - Channel's id

stopMoh

Stop playing music on hold to a bridge.

Callbacks:

ari.bridges.stopMoh(
  {bridgeId: val},
  function (err) {}
);

Promises:

ari.bridges.stopMoh({
    bridgeId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• bridgeId (string) - Bridge's id

channels

answer

Answer a channel.

Callbacks:

ari.channels.answer(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.answer({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

continueInDialplan

Exit application; continue execution in the dialplan.

Callbacks:

ari.channels.continueInDialplan(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.continueInDialplan({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• context (string) - The context to continue to.
• extension (string) - The extension to continue to.
• label (string) - The label to continue to - will supersede 'priority' if both are provided.
• priority (int) - The priority to continue to.

create

Create channel.

Callbacks:

ari.channels.create(
  {app: val, endpoint: val},
  function (err, channel) {}
);

Promises:

ari.channels.create({
    app: val,
    endpoint: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• app (string) - Stasis Application to place channel into
• appArgs (string) - The application arguments to pass to the Stasis application provided by 'app'. Mutually exclusive with 'context', 'extension', 'priority', and 'label'.
• channelId (string) - The unique id to assign the channel on creation.
• endpoint (string) - Endpoint for channel communication
• formats (string) - The format name capability list to use if originator is not specified. Ex. "ulaw,slin16". Format names can be found with "core show codecs".
• originator (string) - Unique ID of the calling channel
• otherChannelId (string) - The unique id to assign the second channel when using local channels.

dial

Dial a created channel.

Callbacks:

ari.channels.dial(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.dial({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• caller (string) - Channel ID of caller
• channelId (string) - Channel's id
• timeout (int) - Dial timeout

externalMedia

Start an External Media session.

Callbacks:

ari.channels.externalMedia(
  {app: val, external_host: val, format: val},
  function (err, channel) {}
);

Promises:

ari.channels.externalMedia({
    app: val,
    external_host: val,
    format: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• app (string) - Stasis Application to place channel into
• channelId (string) - The unique id to assign the channel on creation.
• connection_type (string) - Connection type (client/server)
• direction (string) - External media direction
• encapsulation (string) - Payload encapsulation protocol
• external_host (string) - Hostname/ip:port of external host
• format (string) - Format to encode audio in
• transport (string) - Transport protocol
• variables (containers) - The "variables" key in the body object holds variable key/value pairs to set on the channel on creation. Other keys in the body object are interpreted as query parameters. Ex. { "endpoint": "SIP/Alice", "variables": { "CALLERID(name)": "Alice" } }

get

Channel details.

Callbacks:

ari.channels.get(
  {channelId: val},
  function (err, channel) {}
);

Promises:

ari.channels.get({
    channelId: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

getChannelVar

Get the value of a channel variable or function.

Callbacks:

ari.channels.getChannelVar(
  {channelId: val, variable: val},
  function (err, variable) {}
);

Promises:

ari.channels.getChannelVar({
    channelId: val,
    variable: val
})
  .then(function (variable) {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• variable (string) - The channel variable or function to get

hangup

Delete (i.e. hangup) a channel.

Callbacks:

ari.channels.hangup(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.hangup({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• reason (string) - Reason for hanging up the channel

hold

Hold a channel.

Callbacks:

ari.channels.hold(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.hold({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

list

List all active channels in Asterisk.

Callbacks:

ari.channels.list(
  function (err, channels) {}
);

Promises:

ari.channels.list()
  .then(function (channels) {})
  .catch(function (err) {});

move

Move the channel from one Stasis application to another.

Callbacks:

ari.channels.move(
  {app: val, channelId: val},
  function (err) {}
);

Promises:

ari.channels.move({
    app: val,
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• app (string) - The channel will be passed to this Stasis application.
• appArgs (string) - The application arguments to pass to the Stasis application provided by 'app'.
• channelId (string) - Channel's id

mute

Mute a channel.

Callbacks:

ari.channels.mute(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.mute({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• direction (string) - Direction in which to mute audio

originate

Create a new channel (originate).

Callbacks:

ari.channels.originate(
  {endpoint: val},
  function (err, channel) {}
);

Promises:

ari.channels.originate({
    endpoint: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• app (string) - The application that is subscribed to the originated channel. When the channel is answered, it will be passed to this Stasis application. Mutually exclusive with 'context', 'extension', 'priority', and 'label'.
• appArgs (string) - The application arguments to pass to the Stasis application provided by 'app'. Mutually exclusive with 'context', 'extension', 'priority', and 'label'.
• callerId (string) - CallerID to use when dialing the endpoint or extension.
• channelId (string) - The unique id to assign the channel on creation.
• context (string) - The context to dial after the endpoint answers. If omitted, uses 'default'. Mutually exclusive with 'app'.
• endpoint (string) - Endpoint to call.
• extension (string) - The extension to dial after the endpoint answers. Mutually exclusive with 'app'.
• formats (string) - The format name capability list to use if originator is not specified. Ex. "ulaw,slin16". Format names can be found with "core show codecs".
• label (string) - The label to dial after the endpoint answers. Will supersede 'priority' if provided. Mutually exclusive with 'app'.
• originator (string) - The unique id of the channel which is originating this one.
• otherChannelId (string) - The unique id to assign the second channel when using local channels.
• priority (long) - The priority to dial after the endpoint answers. If omitted, uses 1. Mutually exclusive with 'app'.
• timeout (int) - Timeout (in seconds) before giving up dialing, or -1 for no timeout.
• variables (containers) - The "variables" key in the body object holds variable key/value pairs to set on the channel on creation. Other keys in the body object are interpreted as query parameters. Ex. { "endpoint": "SIP/Alice", "variables": { "CALLERID(name)": "Alice" } }

originateWithId

Create a new channel (originate with id).

Callbacks:

ari.channels.originateWithId(
  {channelId: val, endpoint: val},
  function (err, channel) {}
);

Promises:

ari.channels.originateWithId({
    channelId: val,
    endpoint: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• app (string) - The application that is subscribed to the originated channel. When the channel is answered, it will be passed to this Stasis application. Mutually exclusive with 'context', 'extension', 'priority', and 'label'.
• appArgs (string) - The application arguments to pass to the Stasis application provided by 'app'. Mutually exclusive with 'context', 'extension', 'priority', and 'label'.
• callerId (string) - CallerID to use when dialing the endpoint or extension.
• channelId (string) - The unique id to assign the channel on creation.
• context (string) - The context to dial after the endpoint answers. If omitted, uses 'default'. Mutually exclusive with 'app'.
• endpoint (string) - Endpoint to call.
• extension (string) - The extension to dial after the endpoint answers. Mutually exclusive with 'app'.
• formats (string) - The format name capability list to use if originator is not specified. Ex. "ulaw,slin16". Format names can be found with "core show codecs".
• label (string) - The label to dial after the endpoint answers. Will supersede 'priority' if provided. Mutually exclusive with 'app'.
• originator (string) - The unique id of the channel which is originating this one.
• otherChannelId (string) - The unique id to assign the second channel when using local channels.
• priority (long) - The priority to dial after the endpoint answers. If omitted, uses 1. Mutually exclusive with 'app'.
• timeout (int) - Timeout (in seconds) before giving up dialing, or -1 for no timeout.
• variables (containers) - The "variables" key in the body object holds variable key/value pairs to set on the channel on creation. Other keys in the body object are interpreted as query parameters. Ex. { "endpoint": "SIP/Alice", "variables": { "CALLERID(name)": "Alice" } }

play

Start playback of media.

Callbacks:

ari.channels.play(
  {channelId: val, media: val},
  function (err, playback) {}
);

Promises:

ari.channels.play({
    channelId: val,
    media: val
})
  .then(function (playback) {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• lang (string) - For sounds, selects language for sound.
• media (string) - Media URIs to play.
• offsetms (int) - Number of milliseconds to skip before playing. Only applies to the first URI if multiple media URIs are specified.
• playbackId (string) - Playback ID.
• skipms (int) - Number of milliseconds to skip for forward/reverse operations.

playWithId

Start playback of media and specify the playbackId.

Callbacks:

ari.channels.playWithId(
  {channelId: val, media: val, playbackId: val},
  function (err, playback) {}
);

Promises:

ari.channels.playWithId({
    channelId: val,
    media: val,
    playbackId: val
})
  .then(function (playback) {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• lang (string) - For sounds, selects language for sound.
• media (string) - Media URIs to play.
• offsetms (int) - Number of milliseconds to skip before playing. Only applies to the first URI if multiple media URIs are specified.
• playbackId (string) - Playback ID.
• skipms (int) - Number of milliseconds to skip for forward/reverse operations.

record

Start a recording.

Callbacks:

ari.channels.record(
  {channelId: val, format: val, name: val},
  function (err, liverecording) {}
);

Promises:

ari.channels.record({
    channelId: val,
    format: val,
    name: val
})
  .then(function (liverecording) {})
  .catch(function (err) {});

Available Parameters

• beep (boolean) - Play beep when recording begins
• channelId (string) - Channel's id
• format (string) - Format to encode audio in
• ifExists (string) - Action to take if a recording with the same name already exists.
• maxDurationSeconds (int) - Maximum duration of the recording, in seconds. 0 for no limit
• maxSilenceSeconds (int) - Maximum duration of silence, in seconds. 0 for no limit
• name (string) - Recording's filename
• terminateOn (string) - DTMF input to terminate recording

redirect

Redirect the channel to a different location.

Callbacks:

ari.channels.redirect(
  {channelId: val, endpoint: val},
  function (err) {}
);

Promises:

ari.channels.redirect({
    channelId: val,
    endpoint: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• endpoint (string) - The endpoint to redirect the channel to

ring

Indicate ringing to a channel.

Callbacks:

ari.channels.ring(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.ring({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

ringStop

Stop ringing indication on a channel if locally generated.

Callbacks:

ari.channels.ringStop(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.ringStop({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

rtpstatistics

RTP stats on a channel.

Callbacks:

ari.channels.rtpstatistics(
  {channelId: val},
  function (err, rtpstat) {}
);

Promises:

ari.channels.rtpstatistics({
    channelId: val
})
  .then(function (rtpstat) {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

sendDTMF

Send provided DTMF to a given channel.

Callbacks:

ari.channels.sendDTMF(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.sendDTMF({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• after (int) - Amount of time to wait after DTMF digits (specified in milliseconds) end.
• before (int) - Amount of time to wait before DTMF digits (specified in milliseconds) start.
• between (int) - Amount of time in between DTMF digits (specified in milliseconds).
• channelId (string) - Channel's id
• dtmf (string) - DTMF To send.
• duration (int) - Length of each DTMF digit (specified in milliseconds).

setChannelVar

Set the value of a channel variable or function.

Callbacks:

ari.channels.setChannelVar(
  {channelId: val, variable: val},
  function (err) {}
);

Promises:

ari.channels.setChannelVar({
    channelId: val,
    variable: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• value (string) - The value to set the variable to
• variable (string) - The channel variable or function to set

snoopChannel

Start snooping.

Callbacks:

ari.channels.snoopChannel(
  {app: val, channelId: val},
  function (err, channel) {}
);

Promises:

ari.channels.snoopChannel({
    app: val,
    channelId: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• app (string) - Application the snooping channel is placed into
• appArgs (string) - The application arguments to pass to the Stasis application
• channelId (string) - Channel's id
• snoopId (string) - Unique ID to assign to snooping channel
• spy (string) - Direction of audio to spy on
• whisper (string) - Direction of audio to whisper into

snoopChannelWithId

Start snooping.

Callbacks:

ari.channels.snoopChannelWithId(
  {app: val, channelId: val, snoopId: val},
  function (err, channel) {}
);

Promises:

ari.channels.snoopChannelWithId({
    app: val,
    channelId: val,
    snoopId: val
})
  .then(function (channel) {})
  .catch(function (err) {});

Available Parameters

• app (string) - Application the snooping channel is placed into
• appArgs (string) - The application arguments to pass to the Stasis application
• channelId (string) - Channel's id
• snoopId (string) - Unique ID to assign to snooping channel
• spy (string) - Direction of audio to spy on
• whisper (string) - Direction of audio to whisper into

startMoh

Play music on hold to a channel.

Callbacks:

ari.channels.startMoh(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.startMoh({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• mohClass (string) - Music on hold class to use

startSilence

Play silence to a channel.

Callbacks:

ari.channels.startSilence(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.startSilence({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

stopMoh

Stop playing music on hold to a channel.

Callbacks:

ari.channels.stopMoh(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.stopMoh({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

stopSilence

Stop playing silence to a channel.

Callbacks:

ari.channels.stopSilence(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.stopSilence({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

unhold

Remove a channel from hold.

Callbacks:

ari.channels.unhold(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.unhold({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id

unmute

Unmute a channel.

Callbacks:

ari.channels.unmute(
  {channelId: val},
  function (err) {}
);

Promises:

ari.channels.unmute({
    channelId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• channelId (string) - Channel's id
• direction (string) - Direction in which to unmute audio

deviceStates

delete

Destroy a device-state controlled by ARI.

Callbacks:

ari.deviceStates.delete(
  {deviceName: val},
  function (err) {}
);

Promises:

ari.deviceStates.delete({
    deviceName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• deviceName (string) - Name of the device

get

Retrieve the current state of a device.

Callbacks:

ari.deviceStates.get(
  {deviceName: val},
  function (err, devicestate) {}
);

Promises:

ari.deviceStates.get({
    deviceName: val
})
  .then(function (devicestate) {})
  .catch(function (err) {});

Available Parameters

• deviceName (string) - Name of the device

list

List all ARI controlled device states.

Callbacks:

ari.deviceStates.list(
  function (err, devicestates) {}
);

Promises:

ari.deviceStates.list()
  .then(function (devicestates) {})
  .catch(function (err) {});

update

Change the state of a device controlled by ARI. (Note - implicitly creates the device state).

Callbacks:

ari.deviceStates.update(
  {deviceName: val, deviceState: val},
  function (err) {}
);

Promises:

ari.deviceStates.update({
    deviceName: val,
    deviceState: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• deviceName (string) - Name of the device
• deviceState (string) - Device state value

endpoints

get

Details for an endpoint.

Callbacks:

ari.endpoints.get(
  function (err, endpoint) {}
);

Promises:

ari.endpoints.get()
  .then(function (endpoint) {})
  .catch(function (err) {});

Available Parameters

• resource (string) - ID of the endpoint
• tech (string) - Technology of the endpoint

list

List all endpoints.

Callbacks:

ari.endpoints.list(
  function (err, endpoints) {}
);

Promises:

ari.endpoints.list()
  .then(function (endpoints) {})
  .catch(function (err) {});

listByTech

List available endoints for a given endpoint technology.

Callbacks:

ari.endpoints.listByTech(
  function (err, endpoints) {}
);

Promises:

ari.endpoints.listByTech()
  .then(function (endpoints) {})
  .catch(function (err) {});

Available Parameters

• tech (string) - Technology of the endpoints (sip,iax2,...)

sendMessage

Send a message to some technology URI or endpoint.

Callbacks:

ari.endpoints.sendMessage(
  {from: val, to: val},
  function (err) {}
);

Promises:

ari.endpoints.sendMessage({
    from: val,
    to: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• body (string) - The body of the message
• from (string) - The endpoint resource or technology specific identity to send this message from. Valid resources are sip, pjsip, and xmpp.
• to (string) - The endpoint resource or technology specific URI to send the message to. Valid resources are sip, pjsip, and xmpp.
• variables (containers) - undefined

sendMessageToEndpoint

Send a message to some endpoint in a technology.

Callbacks:

ari.endpoints.sendMessageToEndpoint(
  {from: val},
  function (err) {}
);

Promises:

ari.endpoints.sendMessageToEndpoint({
    from: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• body (string) - The body of the message
• from (string) - The endpoint resource or technology specific identity to send this message from. Valid resources are sip, pjsip, and xmpp.
• resource (string) - ID of the endpoint
• tech (string) - Technology of the endpoint
• variables (containers) - undefined

mailboxes

delete

Destroy a mailbox.

Callbacks:

ari.mailboxes.delete(
  {mailboxName: val},
  function (err) {}
);

Promises:

ari.mailboxes.delete({
    mailboxName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• mailboxName (string) - Name of the mailbox

get

Retrieve the current state of a mailbox.

Callbacks:

ari.mailboxes.get(
  {mailboxName: val},
  function (err, mailbox) {}
);

Promises:

ari.mailboxes.get({
    mailboxName: val
})
  .then(function (mailbox) {})
  .catch(function (err) {});

Available Parameters

• mailboxName (string) - Name of the mailbox

list

List all mailboxes.

Callbacks:

ari.mailboxes.list(
  function (err, mailboxs) {}
);

Promises:

ari.mailboxes.list()
  .then(function (mailboxs) {})
  .catch(function (err) {});

update

Change the state of a mailbox. (Note - implicitly creates the mailbox).

Callbacks:

ari.mailboxes.update(
  {mailboxName: val, newMessages: val, oldMessages: val},
  function (err) {}
);

Promises:

ari.mailboxes.update({
    mailboxName: val,
    newMessages: val,
    oldMessages: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• mailboxName (string) - Name of the mailbox
• newMessages (int) - Count of new messages in the mailbox
• oldMessages (int) - Count of old messages in the mailbox

playbacks

control

Control a playback.

Callbacks:

ari.playbacks.control(
  {operation: val, playbackId: val},
  function (err) {}
);

Promises:

ari.playbacks.control({
    operation: val,
    playbackId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• operation (string) - Operation to perform on the playback.
• playbackId (string) - Playback's id

get

Get a playback's details.

Callbacks:

ari.playbacks.get(
  {playbackId: val},
  function (err, playback) {}
);

Promises:

ari.playbacks.get({
    playbackId: val
})
  .then(function (playback) {})
  .catch(function (err) {});

Available Parameters

• playbackId (string) - Playback's id

stop

Stop a playback.

Callbacks:

ari.playbacks.stop(
  {playbackId: val},
  function (err) {}
);

Promises:

ari.playbacks.stop({
    playbackId: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• playbackId (string) - Playback's id

recordings

cancel

Stop a live recording and discard it.

Callbacks:

ari.recordings.cancel(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.cancel({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

copyStored

Copy a stored recording.

Callbacks:

ari.recordings.copyStored(
  {destinationRecordingName: val, recordingName: val},
  function (err, storedrecording) {}
);

Promises:

ari.recordings.copyStored({
    destinationRecordingName: val,
    recordingName: val
})
  .then(function (storedrecording) {})
  .catch(function (err) {});

Available Parameters

• destinationRecordingName (string) - The destination name of the recording
• recordingName (string) - The name of the recording to copy

deleteStored

Delete a stored recording.

Callbacks:

ari.recordings.deleteStored(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.deleteStored({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

getLive

List live recordings.

Callbacks:

ari.recordings.getLive(
  {recordingName: val},
  function (err, liverecording) {}
);

Promises:

ari.recordings.getLive({
    recordingName: val
})
  .then(function (liverecording) {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

getStored

Get a stored recording's details.

Callbacks:

ari.recordings.getStored(
  {recordingName: val},
  function (err, storedrecording) {}
);

Promises:

ari.recordings.getStored({
    recordingName: val
})
  .then(function (storedrecording) {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

getStoredFile

Get the file associated with the stored recording.

Callbacks:

ari.recordings.getStoredFile(
  {recordingName: val},
  function (err, binary) {}
);

Promises:

ari.recordings.getStoredFile({
    recordingName: val
})
  .then(function (binary) {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

listStored

List recordings that are complete.

Callbacks:

ari.recordings.listStored(
  function (err, storedrecordings) {}
);

Promises:

ari.recordings.listStored()
  .then(function (storedrecordings) {})
  .catch(function (err) {});

mute

Mute a live recording.

Callbacks:

ari.recordings.mute(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.mute({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

pause

Pause a live recording.

Callbacks:

ari.recordings.pause(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.pause({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

stop

Stop a live recording and store it.

Callbacks:

ari.recordings.stop(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.stop({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

unmute

Unmute a live recording.

Callbacks:

ari.recordings.unmute(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.unmute({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

unpause

Unpause a live recording.

Callbacks:

ari.recordings.unpause(
  {recordingName: val},
  function (err) {}
);

Promises:

ari.recordings.unpause({
    recordingName: val
})
  .then(function () {})
  .catch(function (err) {});

Available Parameters

• recordingName (string) - The name of the recording

sounds

get

Get a sound's details.

Callbacks:

ari.sounds.get(
  {soundId: val},
  function (err, sound) {}
);

Promises:

ari.sounds.get({
    soundId: val
})
  .then(function (sound) {})
  .catch(function (err) {});

Available Parameters

• soundId (string) - Sound's id

list

List all sounds.

Callbacks:

ari.sounds.list(
  function (err, sounds) {}
);

Promises:

ari.sounds.list()
  .then(function (sounds) {})
  .catch(function (err) {});

Available Parameters

• format (string) - Lookup sound in a specific format.
• lang (string) - Lookup sound for a specific language.

Events

Event listeners can be registered on the client as well as on resource instances.

Client Events

Client events are received for all events of a given type regardless of which resource the event is for.

ari.on('StasisStart', function (event, channelInstance) {
    // will be called for all channels that enter the Stasis application
});

Resource Instance Events

Resource instance events are only received for the given type and resource.

Callbacks:

var channel = ari.Channel();
channel.on('StasisStart', function (event, channelInstance) {
    // will only be called when the channel above enters the Stasis application
});

channel.originate(
  {endpoint: 'PJSIP/endpoint', app: 'applicationName'},
  function (err, channelInstance) {}
);

Promises:

var channel = ari.Channel();
channel.on('StasisStart', function (event, channelInstance) {
    // will only be called when the channel above enters the Stasis application
});

channel.originate({endpoint: 'PJSIP/endpoint', app: 'applicationName'})
  .then(function (channelInstance) {})
  .catch(function (err) {});

Managing Events

When using events, it is important to note that the callbacks you provide to handle events cannot be garbage collected until they are unregistered as shown below.

At the client level:

var handler = function (event, channel) {};

// receive all 'ChannelDtmfReceived' events
ari.on('ChannelDtmfReceived', handler);

// at some point in your application, remove the event listener to ensure the handler function can be garbage collected
ari.removeListener('ChannelDtmfReceived', handler);
// or remove all event listeners for a particular event type
ari.removeAllListeners('ChannelDtmfReceived');

At the instance level:

var channel = ari.Channel();
var handler = function (event, channel) {};

// receive all 'ChannelDtmfReceived' events for this channel
channel.on('ChannelDtmfReceived', handler);

// at some point in your application, remove the event listener to ensure the handler function can be garbage collected
channel.removeListener('ChannelDtmfReceived', handler);
// or remove all event listeners for a particular event type
channel.removeAllListeners('ChannelDtmfReceived');

For events that are only expected to fire once, once can be used to register an event listener that will automatically be unregistered once the event fires as shown below:

var playback = ari.Playback();
var handler = function (event, playback) {};

// receive 'PlaybackFinished' events for this playback
playback.once('PlaybackFinished', handler);

Supported Events

The following events are defined:

APILoadError

ARI client failed to load.

function (err) {}

ApplicationMoveFailed

Notification that trying to move a channel to another Stasis application failed.

function (event, channel) {}

Available Event Properties

• args (List[string]) - Arguments to the application
• channel (Channel) - undefined
• destination (string) - undefined

Resource Specific Emitters

Channel

ApplicationReplaced

Notification that another WebSocket has taken over for an application.

An application may only be subscribed to by a single WebSocket at a time. If multiple WebSockets attempt to subscribe to the same application, the newer WebSocket wins, and the older one receives this event.

function (event) {}

BridgeAttendedTransfer

Notification that an attended transfer has occurred.

function (event, {destination_link_first_leg: val, destination_link_second_leg: val, destination_threeway_bridge: val, destination_threeway_channel: val, replace_channel: val, transfer_target: val, transferee: val, transferer_first_leg: val, transferer_first_leg_bridge: val, transferer_second_leg: val, transferer_second_leg_bridge: val}) {}

Available Event Properties

• destination_application (string) - Application that has been transferred into
• destination_bridge (string) - Bridge that survived the merge result
• destination_link_first_leg (Channel) - First leg of a link transfer result
• destination_link_second_leg (Channel) - Second leg of a link transfer result
• destination_threeway_bridge (Bridge) - Bridge that survived the threeway result
• destination_threeway_channel (Channel) - Transferer channel that survived the threeway result
• destination_type (string) - How the transfer was accomplished
• is_external (boolean) - Whether the transfer was externally initiated or not
• replace_channel (Channel) - The channel that is replacing transferer_first_leg in the swap
• result (string) - The result of the transfer attempt
• transfer_target (Channel) - The channel that is being transferred to
• transferee (Channel) - The channel that is being transferred
• transferer_first_leg (Channel) - First leg of the transferer
• transferer_first_leg_bridge (Bridge) - Bridge the transferer first leg is in
• transferer_second_leg (Channel) - Second leg of the transferer
• transferer_second_leg_bridge (Bridge) - Bridge the transferer second leg is in

Resource Specific Emitters

Channel Bridge

BridgeBlindTransfer

Notification that a blind transfer has occurred.

function (event, {bridge: val, channel: val, replace_channel: val, transferee: val}) {}

Available Event Properties

• bridge (Bridge) - The bridge being transferred
• channel (Channel) - The channel performing the blind transfer
• context (string) - The context transferred to
• exten (string) - The extension transferred to
• is_external (boolean) - Whether the transfer was externally initiated or not
• replace_channel (Channel) - The channel that is replacing transferer when the transferee(s) can not be transferred directly
• result (string) - The result of the transfer attempt
• transferee (Channel) - The channel that is being transferred

Resource Specific Emitters

Bridge Channel

BridgeCreated

Notification that a bridge has been created.

function (event, bridge) {}

Available Event Properties

• bridge (Bridge) - undefined

Resource Specific Emitters

Bridge

BridgeDestroyed

Notification that a bridge has been destroyed.

function (event, bridge) {}

Available Event Properties

• bridge (Bridge) - undefined

Resource Specific Emitters

Bridge

BridgeMerged

Notification that one bridge has merged into another.

function (event, {bridge: val, bridge_from: val}) {}

Available Event Properties

• bridge (Bridge) - undefined
• bridge_from (Bridge) - undefined

Resource Specific Emitters

Bridge

BridgeVideoSourceChanged

Notification that the source of video in a bridge has changed.

function (event, bridge) {}

Available Event Properties

• bridge (Bridge) - undefined
• old_video_source_id (string) - undefined