Twilio · Schema
video.v1.composition_hook
AuthenticationCommunicationsContact CenterEmailIoTMessagingPhoneSMST1VerificationVideoVoiceTwilioTelecommunicationsReal-TimeWhatsApp
Properties
| Name | Type | Description |
|---|---|---|
| account_sid | stringnull | The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the CompositionHook resource. |
| friendly_name | stringnull | The string that you assigned to describe the resource. Can be up to 100 characters long and must be unique within the account. |
| enabled | booleannull | Whether the CompositionHook is active. When `true`, the CompositionHook is triggered for every completed Group Room on the account. When `false`, the CompositionHook is never triggered. |
| date_created | stringnull | The date and time in GMT when the resource was created specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format. |
| date_updated | stringnull | The date and time in GMT when the resource was last updated specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format. |
| sid | stringnull | The unique string that we created to identify the CompositionHook resource. |
| audio_sources | arraynull | The array of track names to include in the compositions created by the composition hook. A composition triggered by the composition hook includes all audio sources specified in `audio_sources` except |
| audio_sources_excluded | arraynull | The array of track names to exclude from the compositions created by the composition hook. A composition triggered by the composition hook includes all audio sources specified in `audio_sources` excep |
| video_layout | object | A JSON object that describes the video layout of the composition in terms of regions as specified in the HTTP POST request that created the CompositionHook resource. See [POST Parameters](https://www. |
| resolution | stringnull | The dimensions of the video image in pixels expressed as columns (width) and rows (height). The string's format is `{width}x{height}`, such as `640x480`. |
| trim | booleannull | Whether intervals with no media are clipped, as specified in the POST request that created the CompositionHook resource. Compositions with `trim` enabled are shorter when the Room is created and no Pa |
| format | stringnull | The container format of the media files used by the compositions created by the composition hook. If `mp4` or `webm`, `audio_sources` must have one or more tracks and/or a `video_layout` element must |
| status_callback | stringnull | The URL we call using the `status_callback_method` to send status information to your application. |
| status_callback_method | stringnull | The HTTP method we should use to call `status_callback`. Can be `POST` or `GET` and defaults to `POST`. |
| url | stringnull | The absolute URL of the resource. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://raw.githubusercontent.com/api-evangelist/twilio/main/json-schema/twilio-video-v1-composition-hook-schema.json",
"title": "video.v1.composition_hook",
"x-generated": "2026-10-08",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/twilio-composition-hooks-api-openapi.yml#/components/schemas/video.v1.composition_hook",
"type": "object",
"properties": {
"account_sid": {
"type": [
"string",
"null"
],
"minLength": 34,
"maxLength": 34,
"pattern": "^AC[0-9a-fA-F]{32}$",
"description": "The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the CompositionHook resource."
},
"friendly_name": {
"type": [
"string",
"null"
],
"description": "The string that you assigned to describe the resource. Can be up to 100 characters long and must be unique within the account."
},
"enabled": {
"type": [
"boolean",
"null"
],
"description": "Whether the CompositionHook is active. When `true`, the CompositionHook is triggered for every completed Group Room on the account. When `false`, the CompositionHook is never triggered."
},
"date_created": {
"type": [
"string",
"null"
],
"format": "date-time",
"description": "The date and time in GMT when the resource was created specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format."
},
"date_updated": {
"type": [
"string",
"null"
],
"format": "date-time",
"description": "The date and time in GMT when the resource was last updated specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format."
},
"sid": {
"type": [
"string",
"null"
],
"minLength": 34,
"maxLength": 34,
"pattern": "^HK[0-9a-fA-F]{32}$",
"description": "The unique string that we created to identify the CompositionHook resource."
},
"audio_sources": {
"type": [
"array",
"null"
],
"items": {
"type": "string"
},
"description": "The array of track names to include in the compositions created by the composition hook. A composition triggered by the composition hook includes all audio sources specified in `audio_sources` except those specified in `audio_sources_excluded`. The track names in this property can include an asterisk as a wild card character, which matches zero or more characters in a track name. For example, `student*` includes tracks named `student` as well as `studentTeam`. Please, be aware that either video_layout or audio_sources have to be provided to get a valid creation request",
"x-twilio": {
"pii": {
"handling": "standard",
"deleteSla": 30
}
}
},
"audio_sources_excluded": {
"type": [
"array",
"null"
],
"items": {
"type": "string"
},
"description": "The array of track names to exclude from the compositions created by the composition hook. A composition triggered by the composition hook includes all audio sources specified in `audio_sources` except for those specified in `audio_sources_excluded`. The track names in this property can include an asterisk as a wild card character, which matches zero or more characters in a track name. For example, `student*` excludes `student` as well as `studentTeam`. This parameter can also be empty.",
"x-twilio": {
"pii": {
"handling": "standard",
"deleteSla": 30
}
}
},
"video_layout": {
"description": "A JSON object that describes the video layout of the composition in terms of regions as specified in the HTTP POST request that created the CompositionHook resource. See [POST Parameters](https://www.twilio.com/docs/video/api/compositions-resource#http-post-parameters) for more information. Please, be aware that either video_layout or audio_sources have to be provided to get a valid creation request",
"x-twilio": {
"pii": {
"handling": "standard",
"deleteSla": 30
}
}
},
"resolution": {
"type": [
"string",
"null"
],
"description": "The dimensions of the video image in pixels expressed as columns (width) and rows (height). The string's format is `{width}x{height}`, such as `640x480`."
},
"trim": {
"type": [
"boolean",
"null"
],
"description": "Whether intervals with no media are clipped, as specified in the POST request that created the CompositionHook resource. Compositions with `trim` enabled are shorter when the Room is created and no Participant joins for a while as well as if all the Participants leave the room and join later, because those gaps will be removed. See [Specifying Video Layouts](https://www.twilio.com/docs/video/api/compositions-resource#specifying-video-layouts) for more info."
},
"format": {
"type": [
"string",
"null"
],
"$ref": "#/$defs/composition_hook_enum_format",
"description": "The container format of the media files used by the compositions created by the composition hook. If `mp4` or `webm`, `audio_sources` must have one or more tracks and/or a `video_layout` element must contain a valid `video_sources` list, otherwise an error occurs."
},
"status_callback": {
"type": [
"string",
"null"
],
"format": "uri",
"description": "The URL we call using the `status_callback_method` to send status information to your application."
},
"status_callback_method": {
"type": [
"string",
"null"
],
"format": "http-method",
"enum": [
"HEAD",
"GET",
"POST",
"PATCH",
"PUT",
"DELETE"
],
"description": "The HTTP method we should use to call `status_callback`. Can be `POST` or `GET` and defaults to `POST`."
},
"url": {
"type": [
"string",
"null"
],
"format": "uri",
"description": "The absolute URL of the resource."
}
},
"$defs": {
"composition_hook_enum_format": {
"type": "string",
"enum": [
"mp4",
"webm"
]
}
}
}
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