title: fragment/mediawiki/common
description: Common schema fields for all Mediawiki entities
$id: /fragment/mediawiki/common/1.0.0
$schema: 'https://json-schema.org/draft-07/schema#'
type: object
required:
  - $schema
  - database
  - meta
properties:
  $schema:
    type: string
    description: >
      A URI identifying the JSONSchema for this event. This should match an
      schema's $id in a schema repository. E.g. /schema/title/1.0.0
  meta:
    type: object
    required:
      - dt
      - stream
    properties:
      uri:
        type: string
        format: uri-reference
        maxLength: 8192
        description: Unique URI identifying the event or entity
      request_id:
        type: string
        description: Unique ID of the request that caused the event
      id:
        type: string
        description: Unique ID of this event
      dt:
        type: string
        format: date-time
        maxLength: 128
        description: 'UTC event datetime, in ISO-8601 format'
      domain:
        type: string
        description: Domain the event or entity pertains to
        minLength: 1
      stream:
        type: string
        description: Name of the stream/queue/dataset that this event belongs in
        minLength: 1
  database:
    description: The name of the wiki database this event entity belongs to.
    type: string
    minLength: 1
  performer:
    description: Represents the user that performed this change.
    type: object
    required:
      - user_text
      - user_groups
      - user_is_bot
    properties:
      user_id:
        description: >
          The user id that performed this change.  This is optional, and will
          not be present for anonymous users.
        type: integer
        maximum: 9007199254740991
        minimum: -9007199254740991
      user_text:
        description: The text representation of the user that performed this change.
        type: string
        minLength: 1
      user_groups:
        description: 'A list of the groups this user belongs to.  E.g. bot, sysop etc.'
        type: array
        items:
          type: string
          minLength: 1
      user_is_bot:
        description: >
          True if this user is considered to be a bot at the time of this event.
          This is checked via the $user->isBot() method, which considers both
          user_groups and user permissions.
        type: boolean
      user_registration_dt:
        description: >
          The datetime of the user account registration. Not present for
          anonymous users or if missing in the MW database.
        type: string
        format: date-time
        maxLength: 128
      user_edit_count:
        description: >
          The number of edits this user has made at the time of this event. Not
          present for anonymous users.
        type: integer
        maximum: 9007199254740991
        minimum: 0