Send a message

Sends a text, file, or admin message to the channel specified by channel_type and channel_url, with support for uploading files; commonly used for programmatic messages to users.

Manage users, group channels, open channels, messages, metadata, moderation, bots, and announcements through the official Sendbird Chat Platform API v3. The complete boundary is the 83 REST endpoints reconstructed from a pinned official generated SDK revision; client realtime protocols and Chat SDKs are not part of this collection. Application data is the caller's private content, so Pontx does not proxy, cache, or aggregate it and callers use the local SDK/CLI directly.

Request

operationId: sendAMessage
Server: https://api-{app_id}.sendbird.com
Authentication: apiTokenAuth

Request parameters

`channel_type`

pathstringrequired

channel type field.

open_channels

`channel_url`

pathstringrequired

Channel URL.

group_channel_123

Request body

SendAMessageRequest

Properties: apns_bundle_idapple_critical_alert_optionscreated_atcustom_typedatadedup_idfilesinclude_poll_detailsis_silentmark_as_readmention_typementioned_user_idsmessagemessage_typepoll_idpush_message_templaterequire_authsend_pushsorted_metaarraysoundthumbnail1thumbnail2thumbnail3thumbnailsuser_idvolume

Responses

`200`

SendbirdMessageResponseapplication/json

Request succeeded.

Properties: channel_typechannel_urlcreated_atcustom_typedataextended_message_payloadfilefilesis_op_msgis_removedis_reply_to_channelmention_typementioned_usersmessagemessage_eventsmessage_idmessage_retention_hourmessage_survival_secondsparent_message_idparent_message_inforeactionsreq_idrequire_authsilentsorted_metaarraythread_infotranslationstypeupdated_atuser

`400`

SendbirdApiErrorapplication/json

Request parameters are invalid.

Properties: codemessage

`401`

SendbirdApiErrorapplication/json

Unauthenticated or the API token is invalid.

Properties: codemessage

`403`

SendbirdApiErrorapplication/json

Access to the resource is forbidden.

Properties: codemessage

`404`

SendbirdApiErrorapplication/json

The requested resource was not found.

Properties: codemessage

`429`

SendbirdApiErrorapplication/json

Rate limited; retry later.

Properties: codemessage

`500`

SendbirdApiErrorapplication/json

Upstream internal error.

Properties: codemessage

{
  "channel_type": "default",
  "channel_url": "group_channel_123",
  "created_at": 1,
  "custom_type": "default",
  "data": "{\"key\":\"value\"}",
  "files": {
    "file_name": "Example Channel",
    "file_size": 1,
    "file_type": "default",
    "require_auth": true,
    "thumbnails": [],
    "url": "url_value"
  }
}