matrix-spec-proposals/api/client-server/peeking_events.yaml

swagger: '2.0'
info:
  title: "Matrix Client-Server Sync Guest API"
  version: "1.0.0"
host: localhost:8008
schemes:
  - https
  - http
basePath: /_matrix/client/%CLIENT_MAJOR_VERSION%
consumes:
  - application/json
produces:
  - application/json
securityDefinitions:
  $ref: definitions/security.yaml
paths:
  "/events":
    get:
      summary: Listen on the event stream.
      description: |-
        This will listen for new events related to a particular room and return
        them to the caller. This will block until an event is received, or until
        the ``timeout`` is reached.

        This API is the same as the normal ``/events`` endpoint, but can be
        called by users who have not joined the room.

        Note that the normal ``/events`` endpoint has been deprecated. This
        API will also be deprecated at some point, but its replacement is not
        yet known.        
      security:
        - accessToken: []
      parameters:
        - in: query
          type: string
          name: from
          description: |-
            The token to stream from. This token is either from a previous
            request to this API or from the initial sync API.            
          required: false
          x-example: "s3456_9_0"
        - in: query
          type: integer
          name: timeout
          description: The maximum time in milliseconds to wait for an event.
          required: false
          x-example: "35000"
        - in: query
          type: string
          name: room_id
          description: |-
                        The room ID for which events should be returned.
          x-example:
            - "!somewhere:over.the.rainbow"
      responses:
        200:
          description: "The events received, which may be none."
          examples:
            application/json: |-
              {
                "start": "s3456_9_0",
                "end": "s3457_9_0",
                "chunk": [
                  {
                    "age": 32,
                    "content": {
                        "body": "incoming message",
                        "msgtype": "m.text"
                    },
                    "event_id": "$14328055551tzaee:localhost",
                    "origin_server_ts": 1432804485886,
                    "room_id": "!TmaZBKYIFrIPVGoUYp:localhost",
                    "type": "m.room.message",
                    "sender": "@bob:localhost"
                  }
                ]
              }              
          schema:
            type: object
            properties:
              start:
                type: string
                description: |-
                  A token which correlates to the first value in ``chunk``. This
                  is usually the same token supplied to ``from=``.                  
              end:
                type: string
                description: |-
                  A token which correlates to the last value in ``chunk``. This
                  token should be used in the next request to ``/events``.                  
              chunk:
                type: array
                description: "An array of events."
                items:
                  type: object
                  title: Event
                  allOf:
                    - "$ref": "definitions/event-schemas/schema/core-event-schema/room_event.yaml"
        400:
          description: "Bad pagination ``from`` parameter."
        # No tags to exclude this from the swagger UI - use the normal version instead.