matrix-spec/api/server-server/definitions/event-schemas/m.receipt.yaml

# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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type: object
title: m.receipt
description: |-
  An EDU representing receipt updates for users of the sending homeserver.
  When receiving receipts, the server should only update entries that are
  listed in the EDU. Receipts previously received that do not appear in the
  EDU should not be removed or otherwise manipulated.
allOf:
  - $ref: ../edu.yaml
  - type: object
    properties:
      edu_type:
        type: enum
        enum: ['m.receipt']
        description: The string ``m.receipt``
        example: "m.receipt"
      content:
        type: object
        description: |-
          Receipts for a particular room. The string key is the room ID for
          which the receipts under it belong.
        additionalProperties:
          type: object
          title: Room Receipts
          properties:
            # We strongly define the receipt type to help spec future ones later
            # on. At that point, m.read can become optional (maybe).
            "m.read":
              type: object
              description: Read receipts for users in the room.
              title: User Read Receipt
              properties:
                event_ids:
                  type: array
                  description: |-
                    The extremity event IDs that the user has read up to.
                  minItems: 1
                  maxItems: 1
                  items:
                    type: string
                  example: ['$read_this_event:matrix.org']
                data:
                  type: object
                  description: Metadata for the read receipt.
                  title: Read Receipt Metadata
                  properties:
                    ts:
                      type: integer
                      format: int64
                      description: |-
                        A POSIX timestamp in milliseconds for when the user read
                        the event specified in the read receipt.
                      example: 1533358089009
                  required: ['ts']
              required: ['event_ids', 'data']
          required: ['m.read']
        example: {
          "!some_room:example.org": {
            "m.read": {
              "@john:matrix.org": {
                "event_ids": ["$read_this_event:matrix.org"],
                "data": {
                  "ts": 1533358089009
                }
              }
            }
          }
        }