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matrix-spec/api/server-server/backfill.yaml

136 lines
4.7 KiB
YAML

# Copyright 2018 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.
swagger: '2.0'
info:
title: "Matrix Federation Events API"
version: "1.0.0"
host: localhost:8448
schemes:
- https
basePath: /_matrix/federation/v1
consumes:
- application/json
produces:
- application/json
securityDefinitions:
$ref: definitions/security.yaml
paths:
"/backfill/{roomId}":
get:
summary: Retrieves the events which precede the given event
description: |-
Retrieves a sliding-window history of previous PDUs that occurred in the given room.
Starting from the PDU ID(s) given in the ``v`` argument, the PDUs that preceded it
are retrieved, up to the total number given by the ``limit``.
operationId: backfillRoom
security:
- signedRequest: []
parameters:
- in: path
name: roomId
type: string
description: The room ID to backfill.
required: true
x-example: "!SomeRoom:matrix.org"
- in: query
name: v
type: array
items:
type: string
description: The event IDs to backfill from.
required: true
x-example: ["$abc123:matrix.org"]
- in: query
name: limit
type: integer
description: The maximum number of PDUs to retrieve, including the given events.
required: true
x-example: 2
responses:
200:
description: |-
A transaction containing the PDUs that preceded the given event(s), including the given
event(s), up to the given limit.
schema:
$ref: "definitions/unlimited_pdu_transaction.yaml"
"/get_missing_events/{roomId}":
post:
summary: Retrieves events that the sender is missing
description: |-
Retrieves previous events that the sender is missing. This is done by doing a breadth-first
walk of the ``prev_events`` for the ``latest_events``, ignoring any events in ``earliest_events``
and stopping at the ``limit``.
operationId: getMissingPreviousEvents
security:
- signedRequest: []
parameters:
- in: path
name: roomId
type: string
description: The room ID to search in.
required: true
x-example: "!SomeRoom:matrix.org"
- in: body
name: body
schema:
type: object
properties:
limit:
type: integer
description: The maximum number of events to retrieve. Defaults to 10.
example: 10
min_depth:
type: integer
description: The minimum depth of events to retrieve. Defaults to 0.
example: 0
earliest_events:
type: array
description: |-
The latest event IDs that the sender already has. These are skipped when retrieving
the previous events of ``latest_events``.
items:
type: string
example: ["$missing_event:example.org"]
latest_events:
type: array
description: The event IDs to retrieve the previous events for.
items:
type: string
example: ["$event_that_has_the_missing_event_as_a_previous_event:example.org"]
required: ['earliest_events', 'latest_events']
responses:
200:
description: |-
The previous events for ``latest_events``, excluding any ``earliest_events``, up to the
provided ``limit``.
schema:
type: object
properties:
events:
type: array
description: |-
The missing events. The event format varies depending on the room version - check
the `room version specification`_ for precise event formats.
items:
type: object
title: PDU
required: ['events']
examples:
application/json: {
"events": [
{"$ref": "examples/minimal_pdu.json"}
]
}