Sendbird Messages API
Operations for sending and managing messages.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Sendbird Platform Messages API
description: The Sendbird Platform API provides server-side access to manage users, channels, messages, and moderation for in-app chat applications built on Sendbird. Supports group channels, open channels, direct messages, push notifications, and webhooks for real-time communication features.
version: 3.0.0
termsOfService: https://sendbird.com/terms-of-service/
contact:
name: Sendbird Support
url: https://sendbird.com/contact-us/
license:
name: Proprietary
url: https://sendbird.com/terms-of-service/
servers:
- url: https://api-{application_id}.sendbird.com/v3
description: Sendbird Platform API (replace {application_id} with your app ID)
variables:
application_id:
default: YOUR_APP_ID
description: Your Sendbird application ID
security:
- apiTokenAuth: []
tags:
- name: Messages
description: Operations for sending and managing messages.
paths:
/group_channels/{channel_url}/messages:
get:
operationId: listMessages
summary: List Messages
description: Retrieves messages from a specific group channel.
tags:
- Messages
parameters:
- $ref: '#/components/parameters/channel_url'
- name: message_ts
in: query
description: Unix timestamp to fetch messages around.
schema:
type: integer
- name: prev_limit
in: query
description: Number of messages to retrieve before message_ts.
schema:
type: integer
default: 15
maximum: 200
- name: next_limit
in: query
description: Number of messages to retrieve after message_ts.
schema:
type: integer
default: 0
maximum: 200
- name: include
in: query
description: Whether to include the message at message_ts.
schema:
type: boolean
default: false
responses:
'200':
description: A list of messages.
content:
application/json:
schema:
type: object
properties:
messages:
type: array
items:
$ref: '#/components/schemas/Message'
'400':
$ref: '#/components/responses/BadRequest'
'404':
$ref: '#/components/responses/NotFound'
post:
operationId: sendMessage
summary: Send a Message
description: Sends a message to a specific group channel.
tags:
- Messages
parameters:
- $ref: '#/components/parameters/channel_url'
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- message_type
- user_id
properties:
message_type:
type: string
description: Type of message.
enum:
- MESG
- FILE
- ADMM
user_id:
type: string
description: ID of the user sending the message.
message:
type: string
description: Text content of the message.
data:
type: string
description: Custom data string.
custom_type:
type: string
description: Custom type for message categorization.
mention_type:
type: string
enum:
- users
- channel
description: Type of mention.
mentioned_user_ids:
type: array
items:
type: string
description: IDs of mentioned users.
responses:
'200':
description: Message sent successfully.
content:
application/json:
schema:
$ref: '#/components/schemas/Message'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
components:
responses:
Unauthorized:
description: Unauthorized. API token is missing or invalid.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
BadRequest:
description: Bad request.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
NotFound:
description: Not found. The requested resource does not exist.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
schemas:
User:
type: object
properties:
user_id:
type: string
description: Unique identifier of the user.
nickname:
type: string
description: Display nickname.
profile_url:
type: string
description: Profile image URL.
is_online:
type: boolean
description: Whether the user is currently online.
is_active:
type: boolean
description: Whether the user account is active.
last_seen_at:
type: integer
description: Unix timestamp of last activity.
access_token:
type: string
description: Access token for the user (returned when issue_access_token is true).
metadata:
type: object
description: Custom metadata.
additionalProperties:
type: string
created_at:
type: integer
description: Unix timestamp when the user was created.
Error:
type: object
properties:
error:
type: boolean
description: Indicates an error occurred.
code:
type: integer
description: Sendbird error code.
message:
type: string
description: Human-readable error message.
Message:
type: object
properties:
message_id:
type: integer
description: Unique ID of the message.
type:
type: string
description: Message type.
enum:
- MESG
- FILE
- ADMM
message:
type: string
description: Text content of the message.
user:
$ref: '#/components/schemas/User'
channel_url:
type: string
description: URL of the channel containing this message.
created_at:
type: integer
description: Unix timestamp when the message was created.
updated_at:
type: integer
description: Unix timestamp when the message was last updated.
custom_type:
type: string
description: Custom type for message categorization.
data:
type: string
description: Custom data string.
mention_type:
type: string
description: Mention type.
mentioned_users:
type: array
items:
$ref: '#/components/schemas/User'
description: Mentioned users.
parameters:
channel_url:
name: channel_url
in: path
required: true
description: URL of the channel.
schema:
type: string
securitySchemes:
apiTokenAuth:
type: apiKey
in: header
name: Api-Token
description: Sendbird API token obtained from the Sendbird Dashboard.