swagger: '2.0' info: title: "Matrix Client-Server state event send API" version: "1.0.0" host: localhost:8008 schemes: - https - http basePath: /_matrix/client/%CLIENT_MAJOR_VERSION% consumes: - application/json produces: - application/json securityDefinitions: accessToken: type: apiKey description: The user_id or application service access_token name: access_token in: query paths: "/rooms/{roomId}/state/{eventType}/{stateKey}": put: summary: Send a message event to the given room. description: | State events can be sent using this endpoint. These events will be overwritten if ````, ```` and ```` all match. If the state event has an empty ``state_key``, it can be omitted from the path. Requests to this endpoint **cannot use transaction IDs** like other ``PUT`` paths because they cannot be differentiated from the ``state_key``. Furthermore, ``POST`` is unsupported on state paths. The body of the request should be the content object of the event; the fields in this object will vary depending on the type of event. See `Room Events`_ for the ``m.`` event specification. security: - accessToken: [] parameters: - in: path type: string name: roomId description: The room to set the state in required: true x-example: "!636q39766251:example.com" - in: path type: string name: eventType description: The type of event to send. required: true x-example: "m.room.name" - in: path type: string name: stateKey description: The state_key for the state to send. Defaults to the empty string. required: true x-example: "" - in: body name: body schema: type: object example: |- { "name": "New name for the room" } responses: 200: description: "An ID for the sent event." examples: application/json: |- { "event_id": "YUwRidLecu" } schema: type: object properties: event_id: type: string description: |- A unique identifier for the event.