# Copyright 2018-2020 New Vector Ltd # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. openapi: 3.1.0 info: title: Matrix Federation Events API version: 1.0.0 paths: "/state/{roomId}": get: summary: Get all the state of a given room description: Retrieves a snapshot of a room's state at a given event. operationId: getRoomState security: - signedRequest: [] parameters: - in: path name: roomId description: The room ID to get state for. required: true example: "!abc123:matrix.org" schema: type: string - in: query name: event_id description: An event ID in the room to retrieve the state at. required: true example: $helloworld:matrix.org schema: type: string responses: "200": description: |- The fully resolved state for the room, prior to considering any state changes induced by the requested event. Includes the authorization chain for the events. content: application/json: schema: type: object properties: auth_chain: type: array description: |- The full set of authorization events that make up the state of the room, and their authorization events, recursively. Note that events have a different format depending on the room version - check the [room version specification](/rooms) for precise event formats. items: type: object title: PDU description: |- The [PDUs](/server-server-api/#pdus) contained in the auth chain. The event format varies depending on the room version - check the [room version specification](/rooms) for precise event formats. properties: {} example: $ref: examples/minimal_pdu.json pdus: type: array description: |- The fully resolved state of the room at the given event. Note that events have a different format depending on the room version - check the [room version specification](/rooms) for precise event formats. items: type: object title: PDU description: |- The [PDUs](/server-server-api/#pdus) for the fully resolved state of the room. The event format varies depending on the room version - check the [room version specification](/rooms) for precise event formats. properties: {} example: $ref: examples/minimal_pdu.json required: - auth_chain - pdus "/state_ids/{roomId}": get: summary: Get all the state event IDs of a given room description: |- Retrieves a snapshot of a room's state at a given event, in the form of event IDs. This performs the same function as calling `/state/{roomId}`, however this returns just the event IDs rather than the full events. operationId: getRoomStateIds security: - signedRequest: [] parameters: - in: path name: roomId description: The room ID to get state for. required: true example: "!abc123:matrix.org" schema: type: string - in: query name: event_id description: An event ID in the room to retrieve the state at. required: true example: $helloworld:matrix.org schema: type: string responses: "200": description: |- The fully resolved state for the room, prior to considering any state changes induced by the requested event. Includes the authorization chain for the events. content: application/json: schema: type: object properties: auth_chain_ids: type: array description: |- The full set of authorization events that make up the state of the room, and their authorization events, recursively. items: type: string example: - $an_event:example.org pdu_ids: type: array description: The fully resolved state of the room at the given event. items: type: string example: - $an_event:example.org required: - auth_chain_ids - pdu_ids "404": description: |- The given `event_id` was not found or the server doesn't know about the state at that event to return anything useful. content: application/json: schema: $ref: ../client-server/definitions/errors/error.yaml examples: response: value: { "errcode": "M_NOT_FOUND", "error": "Could not find event $Rqnc-F-dvnEYJTyHq_iKxU2bZ1CI92-kuZq3a5lr5Zg" } "/event/{eventId}": get: summary: Get a single event description: Retrieves a single event. operationId: getEvent security: - signedRequest: [] parameters: - in: path name: eventId description: The event ID to get. required: true example: $abc123:matrix.org schema: type: string responses: "200": description: A transaction containing a single PDU which is the event requested. content: application/json: schema: $ref: definitions/single_pdu_transaction.yaml "/timestamp_to_event/{roomId}": get: summary: Get the closest event ID to the given timestamp x-addedInMatrixVersion: "1.6" description: |- Get the ID of the event closest to the given timestamp, in the direction specified by the `dir` parameter. This is primarily used when handling the corresponding [client-server endpoint](/client-server-api/#get_matrixclientv1roomsroomidtimestamp_to_event) when the server does not have all of the room history, and does not have an event suitably close to the requested timestamp. The heuristics for deciding when to ask another homeserver for a closer event if your homeserver doesn't have something close, are left up to the homeserver implementation, although the heuristics will probably be based on whether the closest event is a forward/backward extremity indicating it's next to a gap of events which are potentially closer. A good heuristic for which servers to try first is to sort by servers that have been in the room the longest because they're most likely to have anything we ask about. After the local homeserver receives the response, it should determine, using the `origin_server_ts` property, whether the returned event is closer to the requested timestamp than the closest event that it could find locally. If so, it should try to backfill this event via the [`/event/{event_id}`](#get_matrixfederationv1eventeventid) endpoint so that it is available to for a client to query. operationId: getEventByTimestamp security: - accessToken: [] parameters: - in: path name: roomId description: The ID of the room to search required: true example: "!636q39766251:matrix.org" schema: type: string - in: query name: ts description: |- The timestamp to search from, as given in milliseconds since the Unix epoch. required: true example: 1432684800000 schema: type: integer - in: query name: dir description: The direction in which to search. `f` for forwards, `b` for backwards. required: true example: f schema: type: string enum: - f - b responses: "200": description: An event was found matching the search parameters. content: application/json: schema: type: object properties: event_id: type: string description: The ID of the event found origin_server_ts: type: integer description: The event's timestamp, in milliseconds since the Unix epoch. required: - event_id - origin_server_ts examples: response: value: { "event_id": "$143273582443PhrSn:example.org", "origin_server_ts": 1432735824653 } "404": description: No event was found. content: application/json: schema: $ref: ../client-server/definitions/errors/error.yaml examples: response: value: { "errcode": "M_NOT_FOUND", "error": "Unable to find event from 1432684800000 in forward direction" } servers: - url: "{protocol}://{hostname}{basePath}" variables: protocol: enum: - http - https default: https hostname: default: localhost:8448 basePath: default: /_matrix/federation/v1 components: securitySchemes: $ref: definitions/security.yaml