Asterisk ari-request

Overview

Asterisk ARI(Asterisk REST Interface) 내용 정리.

Basic

Asterisk-12 버전부터는 ARI(Asterisk REST Interface) 를 지원한다.

기본 사용포트 및 base uri 은 다음과 같다.

http://localhost:8088/ari

Applications

/applications GET

List all applications.

Example

Normal

$ curl -X GET -u asterisk:asterisk localhost:8088/ari/applications

[
  {
    "name": "test",
    "channel_ids": [
      "__AST_CHANNEL_ALL_TOPIC"
    ],
    "bridge_ids": [
      "__AST_BRIDGE_ALL_TOPIC"
    ],
    "endpoint_ids": [
      "__AST_ENDPOINT_ALL_TOPIC"
    ],
    "device_names": [
      "__AST_DEVICE_STATE_ALL_TOPIC"
    ],
    "events_allowed": [],
    "events_disallowed": []
  }
]

/applications/{applicationName} GET

Get detail of an application.

Path parameters

• applicationName: string - Application's name.

Error responses

• 404 : Application does not exist.

Example

Normal

$ curl -X GET -u asterisk:asterisk http://192.168.30.10:8088/ari/applications/test

{
  "name": "test",
  "channel_ids": [
    "__AST_CHANNEL_ALL_TOPIC"
  ],
  "bridge_ids": [
    "__AST_BRIDGE_ALL_TOPIC"
  ],
  "endpoint_ids": [
    "__AST_ENDPOINT_ALL_TOPIC"
  ],
  "device_names": [
    "__AST_DEVICE_STATE_ALL_TOPIC"
  ],
  "events_allowed": [],
  "events_disallowed": []
}

/applications/{applicationName}/subscription POST

Subscribe an application to a event source. Returns the state of the application after the subscriptions have changed.

Path parameters(parameters are case-sensitive)

• applicationName: string - Application's name

Query parameters

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

Allows comma separated values.

Error responses

• 400: Missing parameter.
• 404: Application does not exist.
• 422: Event source does not exist.

Example

$ curl -X POST -u asterisk:asterisk http://localhost:8088/ari/applications/test/subscription -H 'content-type: application/json' \
  -d '{"eventSource": "endpoint:PJSIP"}'

{
    "bridge_ids": [
        "__AST_BRIDGE_ALL_TOPIC"
    ],
    "channel_ids": [
        "__AST_CHANNEL_ALL_TOPIC"
    ],
    "device_names": [
        "__AST_DEVICE_STATE_ALL_TOPIC"
    ],
    "endpoint_ids": [
        "__AST_ENDPOINT_ALL_TOPIC"
    ],
    "events_allowed": [],
    "events_disallowed": [],
    "name": "test"
}

/applications/{applicationName}/subscription DELETE

Unsubscribe an application from an event source. Returns the state of the application after the subscription have changed.

Path parameters(parameters are case-sensitive)

• applicationName: string - Application's name

Query parameters

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

Allows comma separated values.

Error responses

• 400: Missing parameter.
• 404: Application does not exist.
• 409: Application not subscribed to event source.
• 422: Event source does not exist.

Example

$ curl -X DELETE -u asterisk:asterisk http://localhost:8088/ari/applications/test/subscription -H 'content-type: application/json' -d '{"eventSource": "endpoint:PJSIP"}'

{
    "bridge_ids": [
        "__AST_BRIDGE_ALL_TOPIC"
    ],
    "channel_ids": [
        "__AST_CHANNEL_ALL_TOPIC"
    ],
    "device_names": [
        "__AST_DEVICE_STATE_ALL_TOPIC"
    ],
    "endpoint_ids": [],
    "events_allowed": [],
    "events_disallowed": [],
    "name": "test"
}

Asterisk

/asterisk/info GET

Gets Asterisk system information.

Query parameters

• only: string: Filter information returned.

Allowed values: build, system, config, status

Allows comma separated values.

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/asterisk/info

{
    "build": {
        "date": "2019-01-08 14:16:26 UTC",
        "kernel": "4.9.0-8-amd64",
        "machine": "x86_64",
        "options": "OPTIONAL_API",
        "os": "Linux",
        "user": "pchero"
    },
    "config": {
        "default_language": "en",
        "name": "",
        "setid": {
            "group": "",
            "user": ""
        }
    },
    "status": {
        "last_reload_time": "2019-01-11T08:04:11.203+0000",
        "startup_time": "2019-01-11T08:04:11.203+0000"
    },
    "system": {
        "entity_id": "42:01:0a:84:00:12",
        "version": "GIT-master-cb214713c0M"
    }
}

/asterisk/modules GET

List Asterisk modules

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/asterisk/modules

[
    {
        "description": "Named ACL system",
        "name": "acl",
        "status": "Running",
        "support_level": "core",
        "use_count": 2
    },
    {
        "description": "Asterisk ADSI Programming Application",
        "name": "app_adsiprog.so",
        "status": "Running",
        "support_level": "deprecated",
        "use_count": 0
    },
    ...
]

/asterisk/modules/{moduleName} GET

Get Asterisk module information.

Path parameters(Parameters are case-sensitive)

• moduleName: string: Module's name

Error responses

• 404: Module could not be found in running modules.
• 409: Module information could not be retrieved.

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/asterisk/modules/res_pjsip.so

{
    "description": "Basic SIP resource",
    "name": "res_pjsip.so",
    "status": "Running",
    "support_level": "core",
    "use_count": 46
}

Bridges

/bridges GET

List all active bridges in Asterisk.

Example

$ curl -s -X GET -u asterisk:asterisk localhost:8088/ari/bridges | python -m json.tool
[
    {
        "bridge_class": "stasis",
        "bridge_type": "mixing",
        "channels": [],
        "creator": "Stasis",
        "id": "3b925a5a-c464-4fc1-8fd9-8dc5dd330284",
        "name": "",
        "technology": "simple_bridge",
        "video_mode": "none"
    },
    {
        "bridge_class": "stasis",
        "bridge_type": "mixing",
        "channels": [],
        "creator": "Stasis",
        "id": "1beb554c-d752-4b16-b1d9-91b3f1375562",
        "name": "",
        "technology": "simple_bridge",
        "video_mode": "none"
    },
    {
        "bridge_class": "stasis",
        "bridge_type": "mixing",
        "channels": [],
        "creator": "Stasis",
        "id": "edfc58b1-1130-42c3-8117-0ca6d9e279f1",
        "name": "",
        "technology": "simple_bridge",
        "video_mode": "none"
    }
]

/bridges POST

Create a new bridge. This bridge persists until it has been shut down, or Asterisk has been shut down.

Query parameters

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

Example

$ curl -s -X POST -u asterisk:asterisk localhost:8088/ari/bridges | python -m json.tool
{
    "bridge_class": "stasis",
    "bridge_type": "mixing",
    "channels": [],
    "creator": "Stasis",
    "id": "edfc58b1-1130-42c3-8117-0ca6d9e279f1",
    "name": "",
    "technology": "simple_bridge",
    "video_mode": "talker"
}

Channels

/channels GET

Example

$ curl localhost:8088/ari/channels

[
  {
    "id": "test_call",
    "name": "PJSIP/sipp-uac-00000000",
    "state": "Up",
    "caller": {
      "name": "",
      "number": ""
    },
    "connected": {
      "name": "",
      "number": ""
    },
    "accountcode": "",
    "dialplan": {
      "context": "sipp-uac",
      "exten": "s",
      "priority": 1
    },
    "creationtime": "2019-03-15T23:16:26.026+0100",
    "language": "en"
  }
]

/channels POST

Create a new channel(originate). The new channel is created immediately and a snapshot of it returned. If a Stasis application is provided it will be automatically subscribed to the originated for further events and updates.

Query parameters

• endpoint: string - (required) Endpoint to call.
• extension: string - The extension to dial after the endpoint answers. Mutually exclusive with 'app'.
• context: string - The context to dial after the endpoint answers. If omitted, uses 'default'. Mutually exclusive with 'app'.
• priority: long - The priority to dial after the endpoint answers. If omitted, uses 1. Mutually exclusive with 'app'.
• label: string - The label to dial after the endpoint answers. Will supersede 'priority' if provided. Mutually exclusive with 'app'.
• 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.
• timeout: int - Timeout(in seconds) before giving up dialing, or -1 for no timeout.

Default: 30

• channelId: string - The unique id to assign the channel on creation.
• otherChannelId: string - The unique id to assign the second channel when using local channels.
• originator: string - The unique id of the channel which is originating this one.
• 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".

Body parameter

• 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"}}

Error response

• 400 : Invalid parameters for originating a channel.
• 409 : Channel with given unique ID already exists.

Example

$ curl -X POST http://192.168.200.20:8088/ari/channels\?api_key=asterisk:asterisk\&endpoint=pjsip/test@sippuas\&app=test

{
	"id": "1543782963.26",
	"name": "PJSIP/sippuas-0000000d",
	"state": "Down",
	"caller": {
		"name": "",
		"number": ""
	},
	"connected": {
		"name": "",
		"number": ""
	},
	"accountcode": "",
	"dialplan": {
		"context": "sippuas",
		"exten": "s",
		"priority": 1
	},
	"creationtime": "2018-12-02T21:36:03.239+0100",
	"language": "en"
}

/channels/{channelId} GET

Example

$ curl localhost:8088/ari/channels/test_call
{
  "id": "test_call",
  "name": "PJSIP/sipp-uac-00000000",
  "state": "Up",
  "caller": {
    "name": "",
    "number": ""
  },
  "connected": {
    "name": "",
    "number": ""
  },
  "accountcode": "",
  "dialplan": {
    "context": "sipp-uac",
    "exten": "s",
    "priority": 1
  },
  "creationtime": "2019-03-15T23:16:26.026+0100",
  "language": "en"
}

/channels/{channelId}/answer POST

Example

$ curl -X POST -u asterisk:asterisk localhost:8088/ari/channels/1548886670.0/answer

/channels/{channelId}/continue POST

Exit application; continue execution in the dialplan.

Path parameters(Parameters are case-sensitive)

• channelId: string - Channel's Id

Query parameters

• context: string - The context to continue to.
• extension: string - The extension to continue to.
• priority: int - The priority to continue to.
• label: string - The label to continue to - will supersede 'priority' if both are provided.

Error responses

• 404: Channel not found
• 409: Channel not in a Stasis application.
• 412: Channel in invalid state.

Example

Normal

$ curl -X POST http://192.168.200.20:8088/ari/channels/1543782963.26/continue\?api_key=asterisk:asterisk

No channel info

~$ curl -X POST http://192.168.200.20:8088/ari/channels/1543782963.26/continue\?api_key=asterisk:asterisk

{"message":"Channel not in Stasis application"}

/channels/{channelId}/create POST

Create channel.

Query parameters

• endpoint: string - (required) Endpoint for channel communication.
• app: string - (required) 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.
• otherChannelId: string - The unique id to assign the second channel when using local channels.
• originator: string - Unique ID of the calling channel.
• 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".

Error responses

• 409: Channel with given unique ID already exists.

Example

Normal

## Asterisk - test_call2: create channel only
curl -X "POST" "http://localhost:8088/ari/channels/create" \
     -H 'Content-Type: application/json; charset=utf-8' \
     -u 'asterisk:asterisk' \
     -d $'{
  "appArgs": "pchero_dialed=1",
  "channelId": "test_call2",
  "app": "pchero_voip",
  "endpoint": "PJSIP/pchero-voip/sip:test@127.0.0.1",
  "callerId": "pchero"
}'

{
    "accountcode": "",
    "caller": {
        "name": "",
        "number": ""
    },
    "connected": {
        "name": "",
        "number": ""
    },
    "creationtime": "2019-02-25T13:37:26.509+0000",
    "dialplan": {
        "context": "pchero-voip",
        "exten": "s",
        "priority": 1
    },
    "id": "test_call2",
    "language": "en",
    "name": "PJSIP/pchero-voip-00000049",
    "state": "Down"
}

/channels/{channelId}/dial POST

Dial a created channel.

Path parameters(Parameters are case-sensitive)

• ChannelId: string - Channel's id.

Query parameters

• caller: string - Channel ID of caller.
• timeout: int - Dial timeout.

Allowed range: Min: 0, Max: None

Example

Normal

## Asterisk - test_call: dial to test_call2
curl -X "POST" "http://localhost:8088/ari/channels/test_call/dial" \
     -H 'Content-Type: application/json; charset=utf-8' \
     -u 'asterisk:asterisk' \
     -d $'{
  "channelId": "test_call2"
}'

/channells/{channelId}/record POST

Start a recording. Record audio from a channel. Note that this will not capture audio sent to the channel. The bridge itself has a record feature if that's what you want.

Path parameters(Parameters are case-sensitive)

• chanelId: string: Channel's Id.

Query parameters

• name: string: (required)Recording's filename.
• format: string: (required)Format to encode audio in.
• maxDurationSeconds: int: Maximum duration of the recording, in seconds. 0 for no limit.

Allowed range: Min: 0, Max: None

• maxSilenceSeconds: int: Maximum duration of silence, in seconds, 0 for no limit

Allowed range: Min: 0, Max: None

• ifExists: string: Action to take if a recording with the same name already exists.

Default: fail

Allowed values: fail, overwrite, append

• beep: boolean: Play beep when recording begins.
• terminateOn: string: DTMF input to terminate recording.

Default: none

Allowed value: non, any, *, #

Error responses

• 400: Invalid parameters.
• 404: Channel not found.
• 409: Channel is not in a Stasis application; the channel is currently bridged with other channels; A recording with the same name already exists on the system and can not be overwritten because it is in progess or ifExists=fail.
• 422: The format specified is unknown on this system.

/channells/{channelId}/play POST

Example

curl -X POST -u asterisk:asterisk -H 'Content-Type: application/json; charset=utf-8' localhost:8088/ari/channels/1548886670.0/play -d \
'{"media": ["sound:https://github.com/pchero/asterisk-medias/raw/master/samples_codec/pcm_samples/example-mono_16bit_8khz_pcm.wav"]}'

{
    "id": "bbd2b76c-091d-4b13-bb9d-982ddeec53d5",
    "language": "en",
    "media_uri": "sound:https://github.com/pchero/asterisk-medias/raw/master/samples_codec/pcm_samples/example-mono_16bit_8khz_pcm.wav",
    "state": "queued",
    "target_uri": "channel:1548886670.0"
}

/channels/{channelId}/variable GET

Get the value of a channel variable or function.

You can see the more available channel variables are here

• https://wiki.asterisk.org/wiki/display/AST/Asterisk+16+Function_CHANNEL - CHANNEL()

Path Parameters

• channelId : string : Channel's id.

Query parameters

• variable : string : (required) The channel variable or function to get.

Example

$ curl -s -u asterisk:asterisk localhost:8088/ari/channels/test_call/variable\?variable=CHANNEL\(rtcp,all_loss\) | python -m json.tool

{
    "value": "minrxlost=0.000000;maxrxlost=8.000000;avgrxlost=0.024691;stdevrxlost=inf;reported_minlost=0.000000;reported_maxlost=0.000000;reported_avglost=0.000000;reported_stdevlost=0.000000;"
}

$ curl -s -u asterisk:asterisk localhost:8088/ari/channels/test_call/variable\?variable=CHANNEL\(rtcp,all\) | python -m json.tool

{
    "value":"ssrc=528427381;themssrc=487275306;lp=8;rxjitter=0.000000;rxcount=96231;txjitter=0.001051;txcount=900;rlp=0;rtt=0.000000"
}

$ curl -s -u asterisk:asterisk localhost:8088/ari/channels/test_call/variable\?variable=CHANNEL\(pjsip,call-id\) | python -m json.tool

{
    "value":"7486de53-1305-42a3-abc5-97a34626fe8e"
}

Events

/events GET

Websocket connection for events.

Query parameters

• app: string - (required) Applications to subscribe to.

Allows comma separated values.

• subscribeAll: boolean - Subscribe to all Asterisk events. If provided, the applications listed will be subscribed to all events, effectively disabling the application specific subscriptions.

Default: false

Example

ws://192.168.200.20:8088/ari/events?api_key=asterisk:asterisk&app=test

ws://192.168.200.20:8088/ari/events?api_key=asterisk:asterisk&app=test&subscribeAll=true

Recordings

/recordings/stored GET

List recordings that are complete.

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/recordings/stored

[
    {
        "format": "wav",
        "name": "test_call"
    }
]

/recordings/stored/{recordingName} DELETE

Delete a stored recording.

Path parameters

• recordingName: string: The name of the recording.

Error responses

• 404: Recording not found.

Examples

Normal

$ curl -X DELETE -u asterisk:asterisk http://localhost:8088/ari/recordings/stored/test_call

Not found

$ curl -X DELETE -u asterisk:asterisk http://localhost:8088/ari/recordings/stored/test_call
{"message":"Recording not found"}

/recordings/stored/{recording name} GET

Get a stored recording's details.

Path parameters

• recording name: string: The name of the recording.

Error response

• 404: Recording not found

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/recordings/stored/test_call

{
    "format": "wav",
    "name": "test_call"
}

Sounds

• https://wiki.asterisk.org/wiki/display/AST/Asterisk+15+Sounds+REST+API

/sounds GET

List all sounds.

Query parameters

• lang: string: Lookup sound for specific language.
• format: string: Lookup sound in a specific format.

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/sounds

[
    {
        "formats": [
            {
                "format": "gsm",
                "language": "en"
            }
        ],
        "id": "conf-now-unmuted",
        "text": "The conference is now unmuted."
    },
    {
        "formats": [
            {
                "format": "gsm",
                "language": "en"
            }
        ],
        "id": "queue-minutes",
        "text": "minutes"
    },
    ...
]

/sounds/{soundId} GET

Get a sound's details.

Path parameters(case-sensitive)

• sound: string: Sound's id.

Examples

$ curl -X GET -u asterisk:asterisk http://localhost:8088/ari/sounds/demo-thanks

{
    "formats": [
        {
            "format": "gsm",
            "language": "en"
        }
    ],
    "id": "demo-thanks",
    "text": "Goodbye.  Thank you for trying out the Asterisk Open Source PBX."
}

See also

• https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+ARI - Asterisk 13 ARI