Join a public group channel

Lets a user join a public group channel identified by channel_url; only channels with is_public set to true can be joined this way. A single user can join up to 2,000 group channels and cannot join a new one once at capacity.

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

Request parameters

`channel_url`

pathstringrequired

Channel URL.

group_channel_123

Request body

JoinAChannelRequest

Properties: access_codeuser_id

Responses

`200`

SendbirdGroupChannelDetailapplication/json

Request succeeded.

Properties: channelchannel_urlcover_urlcreated_atcreated_bycustom_typedatadelivery_receiptdisappearing_messagefreezehas_ai_bothas_botidignore_profanity_filteris_access_code_requiredis_broadcastis_discoverableis_distinctis_ephemeralis_publicis_superjoined_member_countlast_messagemax_length_messagemember_countmembersmessage_survival_secondsnameoperatorsread_receiptsms_fallbackunread_mention_countunread_message_count

`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_url": "group_channel_123",
  "cover_url": "https://example.com/avatar.png",
  "created_at": 1,
  "created_by": {
    "is_active": true,
    "is_blocked_by_me": true,
    "nickname": "Alice",
    "profile_url": "https://example.com/avatar.png",
    "require_auth_for_profile_image": true,
    "role": "none",
    "user_id": "user_id_123"
  },
  "custom_type": "default",
  "data": "{\"key\":\"value\"}",
  "delivery_receipt": {}
}