Sinch · Schema
SendMessageRequest
CommunicationsMessagingSMSVoiceVerificationCPaaSTelecommunicationsWhatsApp
Properties
| Name | Type | Description |
|---|---|---|
| app_id | string | The ID of the Conversation API app |
| recipient | object | The message recipient |
| message | object | |
| message_metadata | string | Metadata to associate with the message |
| conversation_metadata | string | Metadata to associate with the conversation |
| channel_priority_order | array | Ordered list of channels to try |
| queue | string | The message queue priority |
| ttl | integer | Time-to-live in seconds for the message |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://raw.githubusercontent.com/api-evangelist/sinch/main/json-schema/sinch-send-message-request-schema.json",
"title": "SendMessageRequest",
"x-generated": "2026-10-03",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/sinch-messages-api-openapi.yml#/components/schemas/SendMessageRequest",
"type": "object",
"required": [
"app_id",
"message",
"recipient"
],
"properties": {
"app_id": {
"type": "string",
"description": "The ID of the Conversation API app"
},
"recipient": {
"type": "object",
"description": "The message recipient",
"properties": {
"contact_id": {
"type": "string",
"description": "The contact ID to send to"
},
"identified_by": {
"type": "object",
"description": "Channel identity to address",
"properties": {
"channel_identities": {
"type": "array",
"items": {
"$ref": "#/$defs/ChannelIdentity"
}
}
}
}
}
},
"message": {
"$ref": "#/$defs/AppMessage"
},
"message_metadata": {
"type": "string",
"description": "Metadata to associate with the message"
},
"conversation_metadata": {
"type": "string",
"description": "Metadata to associate with the conversation"
},
"channel_priority_order": {
"type": "array",
"description": "Ordered list of channels to try",
"items": {
"type": "string"
}
},
"queue": {
"type": "string",
"enum": [
"NORMAL_PRIORITY",
"HIGH_PRIORITY"
],
"description": "The message queue priority"
},
"ttl": {
"type": "integer",
"description": "Time-to-live in seconds for the message"
}
},
"$defs": {
"AppMessage": {
"type": "object",
"properties": {
"text_message": {
"type": "object",
"description": "A text message",
"properties": {
"text": {
"type": "string",
"description": "The message text"
}
}
},
"media_message": {
"type": "object",
"description": "A media message",
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "The media URL"
},
"thumbnail_url": {
"type": "string",
"format": "uri",
"description": "The thumbnail URL"
}
}
},
"template_message": {
"type": "object",
"description": "A template message",
"properties": {
"omni_template": {
"type": "object",
"description": "The template reference",
"properties": {
"template_id": {
"type": "string",
"description": "The template identifier"
},
"version": {
"type": "string",
"description": "The template version"
},
"language_code": {
"type": "string",
"description": "The language code"
},
"parameters": {
"type": "object",
"description": "Template parameter values"
}
}
}
}
},
"card_message": {
"type": "object",
"description": "A card message with title, description, and media",
"properties": {
"title": {
"type": "string",
"description": "The card title"
},
"description": {
"type": "string",
"description": "The card description"
},
"media_message": {
"type": "object",
"description": "The card media",
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "The media URL"
}
}
},
"choices": {
"type": "array",
"description": "Action choices on the card",
"items": {
"$ref": "#/$defs/Choice"
}
}
}
},
"list_message": {
"type": "object",
"description": "A list message with sections",
"properties": {
"title": {
"type": "string",
"description": "The list title"
},
"description": {
"type": "string",
"description": "The list description"
},
"sections": {
"type": "array",
"description": "List sections",
"items": {
"type": "object",
"properties": {
"title": {
"type": "string",
"description": "Section title"
},
"items": {
"type": "array",
"description": "Section items",
"items": {
"$ref": "#/$defs/Choice"
}
}
}
}
}
}
}
}
},
"ChannelIdentity": {
"type": "object",
"properties": {
"channel": {
"type": "string",
"enum": [
"SMS",
"RCS",
"WHATSAPP",
"MESSENGER",
"INSTAGRAM",
"VIBER",
"VIBERBM",
"TELEGRAM",
"KAKAOTALK",
"LINE",
"MMS"
],
"description": "The channel type"
},
"identity": {
"type": "string",
"description": "The channel-specific identity"
},
"app_id": {
"type": "string",
"description": "The app ID for the channel"
}
}
},
"Choice": {
"type": "object",
"properties": {
"text_message": {
"type": "object",
"description": "Text choice",
"properties": {
"text": {
"type": "string",
"description": "The choice text"
}
}
},
"postback_data": {
"type": "string",
"description": "Data sent back when the choice is selected"
}
}
}
}
}Work with this as data
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