Microsoft Graph Users.calendar API

openapi: 3.1.0
info:
  title: Microsoft Graph Admin Admin.admin Users.calendar API
  description: 'Microsoft Graph API for managing administrative resources in Microsoft Entra ID.

    This API enables administrators to manage Microsoft Edge browser settings, Internet Explorer mode configurations,

    site lists, shared browser sites, Microsoft 365 Apps installation options, people insights, service announcements,

    SharePoint settings, Copilot administration, directory administrative units, and admin consent policies.'
  version: 1.0.0
  contact:
    name: Microsoft Graph API Support
    url: https://developer.microsoft.com/graph
servers:
- url: https://graph.microsoft.com/v1.0
  description: Microsoft Graph API v1.0 endpoint
tags:
- name: Users.calendar
  x-ms-docs-toc-type: page
paths:
  /users/{user-id}/calendar:
    description: Provides operations to manage the calendar property of the microsoft.graph.user entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get calendar from users
      description: The user's primary calendar. Read-only.
      operationId: users.GetCalendar
      parameters:
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          description: Retrieved navigation property
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.calendar'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
    patch:
      tags:
      - Users.calendar
      summary: Microsoft Graph Update the navigation property calendar in users
      operationId: users.UpdateCalendar
      requestBody:
        description: New navigation property values
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/microsoft.graph.calendar'
        required: true
      responses:
        2XX:
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.calendar'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/calendarPermissions:
    description: Provides operations to manage the calendarPermissions property of the microsoft.graph.calendar entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/calendarPermissions
    - /users/{user-id}/calendars/{calendar-id}/calendarPermissions
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph List calendarPermissions
      description: Get a collection of calendarPermission resources that describe the identity and roles of users with whom the specified calendar has been shared or delegated. Here, the calendar can be a user calendar or group calendar.
      externalDocs:
        description: Find more info here
        url: https://learn.microsoft.com/graph/api/calendar-list-calendarpermissions?view=graph-rest-1.0
      operationId: users.calendar.ListCalendarPermissions
      parameters:
      - $ref: '#/components/parameters/top'
      - $ref: '#/components/parameters/skip'
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      - $ref: '#/components/parameters/count'
      - name: $orderby
        in: query
        description: Order items by property values
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          $ref: '#/components/responses/microsoft.graph.calendarPermissionCollectionResponse'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-pageable:
        nextLinkName: '@odata.nextLink'
        operationName: listMore
      x-ms-docs-operation-type: operation
    post:
      tags:
      - Users.calendar
      summary: Microsoft Graph Create new navigation property to calendarPermissions for users
      operationId: users.calendar.CreateCalendarPermissions
      requestBody:
        description: New navigation property
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/microsoft.graph.calendarPermission'
        required: true
      responses:
        2XX:
          description: Created navigation property.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.calendarPermission'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/calendarPermissions/{calendarPermission-id}:
    description: Provides operations to manage the calendarPermissions property of the microsoft.graph.calendar entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    - name: calendarPermission-id
      in: path
      description: The unique identifier of calendarPermission
      required: true
      schema:
        type: string
      x-ms-docs-key-type: calendarPermission
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/calendarPermissions/{calendarPermission-id}
    - /users/{user-id}/calendars/{calendar-id}/calendarPermissions/{calendarPermission-id}
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get calendarPermission
      description: Get the specified permissions object of a user or group calendar that has been shared.
      externalDocs:
        description: Find more info here
        url: https://learn.microsoft.com/graph/api/calendarpermission-get?view=graph-rest-1.0
      operationId: users.calendar.GetCalendarPermissions
      parameters:
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          description: Retrieved navigation property
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.calendarPermission'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
    patch:
      tags:
      - Users.calendar
      summary: Microsoft Graph Update calendarPermission
      description: Update the permissions assigned to an existing share recipient or delegate, through the corresponding <b>calendarPermission</b> object for a calendar.
      externalDocs:
        description: Find more info here
        url: https://learn.microsoft.com/graph/api/calendarpermission-update?view=graph-rest-1.0
      operationId: users.calendar.UpdateCalendarPermissions
      requestBody:
        description: New navigation property values
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/microsoft.graph.calendarPermission'
        required: true
      responses:
        2XX:
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.calendarPermission'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
    delete:
      tags:
      - Users.calendar
      summary: Microsoft Graph Delete calendarPermission
      description: Delete calendarPermission.
      externalDocs:
        description: Find more info here
        url: https://learn.microsoft.com/graph/api/calendarpermission-delete?view=graph-rest-1.0
      operationId: users.calendar.DeleteCalendarPermissions
      parameters:
      - name: If-Match
        in: header
        description: ETag
        schema:
          type: string
      responses:
        '204':
          description: Success
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/calendarPermissions/$count:
    description: Provides operations to count the resources in the collection.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get the number of the resource
      operationId: users.calendar.calendarPermissions.GetCount-b877
      parameters:
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      responses:
        2XX:
          $ref: '#/components/responses/ODataCountResponse'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
  /users/{user-id}/calendar/calendarView:
    description: Provides operations to manage the calendarView property of the microsoft.graph.calendar entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/calendarView
    - /users/{user-id}/calendars/{calendar-id}/calendarView
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get calendarView from users
      description: The calendar view for the calendar. Navigation property. Read-only.
      operationId: users.calendar.ListCalendarView
      parameters:
      - name: startDateTime
        in: query
        description: The start date and time of the time range, represented in ISO 8601 format. For example, 2019-11-08T19:00:00-08:00
        required: true
        schema:
          type: string
      - name: endDateTime
        in: query
        description: The end date and time of the time range, represented in ISO 8601 format. For example, 2019-11-08T20:00:00-08:00
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/top'
      - $ref: '#/components/parameters/skip'
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      - $ref: '#/components/parameters/count'
      - name: $orderby
        in: query
        description: Order items by property values
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          $ref: '#/components/responses/microsoft.graph.eventCollectionResponse'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-pageable:
        nextLinkName: '@odata.nextLink'
        operationName: listMore
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/calendarView/delta():
    description: Provides operations to call the delta method.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendar/events/{event-id}/instances/delta()
    - /users/{user-id}/calendar/events/delta()
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/calendarView/delta()
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/events/{event-id}/instances/delta()
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/events/delta()
    - /users/{user-id}/calendars/{calendar-id}/calendarView/delta()
    - /users/{user-id}/calendars/{calendar-id}/events/{event-id}/instances/delta()
    - /users/{user-id}/calendars/{calendar-id}/events/delta()
    - /users/{user-id}/calendarView/delta()
    - /users/{user-id}/chats/{chat-id}/messages/{chatMessage-id}/replies/delta()
    - /users/{user-id}/chats/{chat-id}/messages/delta()
    - /users/{user-id}/contactFolders/{contactFolder-id}/childFolders/{contactFolder-id1}/contacts/delta()
    - /users/{user-id}/contactFolders/{contactFolder-id}/childFolders/delta()
    - /users/{user-id}/contactFolders/{contactFolder-id}/contacts/delta()
    - /users/{user-id}/contactFolders/delta()
    - /users/{user-id}/contacts/delta()
    - /users/{user-id}/events/{event-id}/instances/delta()
    - /users/{user-id}/events/delta()
    - /users/{user-id}/joinedTeams/{team-id}/channels/{channel-id}/messages/{chatMessage-id}/replies/delta()
    - /users/{user-id}/joinedTeams/{team-id}/channels/{channel-id}/messages/delta()
    - /users/{user-id}/joinedTeams/{team-id}/primaryChannel/messages/{chatMessage-id}/replies/delta()
    - /users/{user-id}/joinedTeams/{team-id}/primaryChannel/messages/delta()
    - /users/{user-id}/mailFolders/{mailFolder-id}/childFolders/{mailFolder-id1}/messages/delta()
    - /users/{user-id}/mailFolders/{mailFolder-id}/childFolders/delta()
    - /users/{user-id}/mailFolders/{mailFolder-id}/messages/delta()
    - /users/{user-id}/mailFolders/delta()
    - /users/{user-id}/messages/delta()
    - /users/{user-id}/onlineMeetings/{onlineMeeting-id}/recordings/delta()
    - /users/{user-id}/onlineMeetings/{onlineMeeting-id}/transcripts/delta()
    - /users/{user-id}/todo/lists/{todoTaskList-id}/tasks/delta()
    - /users/{user-id}/todo/lists/delta()
    - /users/delta()
    - /users/delta()
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Invoke function delta
      description: Get a set of event resources that have been added, deleted, or updated in a calendarView (a range of events defined by start and end dates) of the user's primary calendar. Typically, synchronizing events in a calendarView in a local store entails a round of multiple delta function calls. The initial call is a full synchronization, and every subsequent delta call in the same round gets the incremental changes (additions, deletions, or updates). This allows you to maintain and synchronize a local store of events in the specified calendarView, without having to fetch all the events of that calendar from the server every time.
      externalDocs:
        description: Find more info here
        url: https://learn.microsoft.com/graph/api/event-delta?view=graph-rest-1.0
      operationId: users.user.calendar.calendarView.delta
      parameters:
      - name: startDateTime
        in: query
        description: The start date and time of the time range in the function, represented in ISO 8601 format. For example, 2019-11-08T20:00:00-08:00
        required: true
        schema:
          type: string
      - name: endDateTime
        in: query
        description: The end date and time of the time range in the function, represented in ISO 8601 format. For example, 2019-11-08T20:00:00-08:00
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/top'
      - $ref: '#/components/parameters/skip'
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      - $ref: '#/components/parameters/count'
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $orderby
        in: query
        description: Order items by property values
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          description: Success
          content:
            application/json:
              schema:
                title: Collection of event
                type: object
                allOf:
                - $ref: '#/components/schemas/BaseDeltaFunctionResponse'
                - type: object
                  properties:
                    value:
                      type: array
                      items:
                        $ref: '#/components/schemas/microsoft.graph.event'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: function
      x-ms-pageable:
        nextLinkName: '@odata.nextLink'
        operationName: listMore
  /users/{user-id}/calendar/events:
    description: Provides operations to manage the events property of the microsoft.graph.calendar entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/events
    - /users/{user-id}/calendars/{calendar-id}/events
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get events from users
      description: The events in the calendar. Navigation property. Read-only.
      operationId: users.calendar.ListEvents
      parameters:
      - $ref: '#/components/parameters/top'
      - $ref: '#/components/parameters/skip'
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      - $ref: '#/components/parameters/count'
      - name: $orderby
        in: query
        description: Order items by property values
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          $ref: '#/components/responses/microsoft.graph.eventCollectionResponse'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-pageable:
        nextLinkName: '@odata.nextLink'
        operationName: listMore
      x-ms-docs-operation-type: operation
    post:
      tags:
      - Users.calendar
      summary: Microsoft Graph Create new navigation property to events for users
      operationId: users.calendar.CreateEvents
      requestBody:
        description: New navigation property
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/microsoft.graph.event'
        required: true
      responses:
        2XX:
          description: Created navigation property.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.event'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/events/{event-id}:
    description: Provides operations to manage the events property of the microsoft.graph.calendar entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    - name: event-id
      in: path
      description: The unique identifier of event
      required: true
      schema:
        type: string
      x-ms-docs-key-type: event
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/events/{event-id}
    - /users/{user-id}/calendars/{calendar-id}/events/{event-id}
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get events from users
      description: The events in the calendar. Navigation property. Read-only.
      operationId: users.calendar.GetEvents
      parameters:
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          description: Retrieved navigation property
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.event'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
    patch:
      tags:
      - Users.calendar
      summary: Microsoft Graph Update the navigation property events in users
      operationId: users.calendar.UpdateEvents
      requestBody:
        description: New navigation property values
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/microsoft.graph.event'
        required: true
      responses:
        2XX:
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.event'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
    delete:
      tags:
      - Users.calendar
      summary: Microsoft Graph Delete navigation property events for users
      operationId: users.calendar.DeleteEvents
      parameters:
      - name: If-Match
        in: header
        description: ETag
        schema:
          type: string
      responses:
        '204':
          description: Success
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/events/{event-id}/attachments:
    description: Provides operations to manage the attachments property of the microsoft.graph.event entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    - name: event-id
      in: path
      description: The unique identifier of event
      required: true
      schema:
        type: string
      x-ms-docs-key-type: event
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/events/{event-id}/attachments
    - /users/{user-id}/calendars/{calendar-id}/events/{event-id}/attachments
    - /users/{user-id}/events/{event-id}/attachments
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get attachments from users
      description: The collection of FileAttachment, ItemAttachment, and referenceAttachment attachments for the event. Navigation property. Read-only. Nullable.
      operationId: users.calendar.events.ListAttachments
      parameters:
      - $ref: '#/components/parameters/top'
      - $ref: '#/components/parameters/skip'
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      - $ref: '#/components/parameters/count'
      - name: $orderby
        in: query
        description: Order items by property values
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          $ref: '#/components/responses/microsoft.graph.attachmentCollectionResponse'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-pageable:
        nextLinkName: '@odata.nextLink'
        operationName: listMore
      x-ms-docs-operation-type: operation
    post:
      tags:
      - Users.calendar
      summary: Microsoft Graph Create new navigation property to attachments for users
      operationId: users.calendar.events.CreateAttachments
      requestBody:
        description: New navigation property
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/microsoft.graph.attachment'
        required: true
      responses:
        2XX:
          description: Created navigation property.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.attachment'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/events/{event-id}/attachments/{attachment-id}:
    description: Provides operations to manage the attachments property of the microsoft.graph.event entity.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    - name: event-id
      in: path
      description: The unique identifier of event
      required: true
      schema:
        type: string
      x-ms-docs-key-type: event
    - name: attachment-id
      in: path
      description: The unique identifier of attachment
      required: true
      schema:
        type: string
      x-ms-docs-key-type: attachment
    x-ms-docs-grouped-path:
    - /users/{user-id}/calendarGroups/{calendarGroup-id}/calendars/{calendar-id}/events/{event-id}/attachments/{attachment-id}
    - /users/{user-id}/calendars/{calendar-id}/events/{event-id}/attachments/{attachment-id}
    - /users/{user-id}/events/{event-id}/attachments/{attachment-id}
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get attachments from users
      description: The collection of FileAttachment, ItemAttachment, and referenceAttachment attachments for the event. Navigation property. Read-only. Nullable.
      operationId: users.calendar.events.GetAttachments
      parameters:
      - name: $select
        in: query
        description: Select properties to be returned
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      - name: $expand
        in: query
        description: Expand related entities
        style: form
        explode: false
        schema:
          uniqueItems: true
          type: array
          items:
            type: string
      responses:
        2XX:
          description: Retrieved navigation property
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/microsoft.graph.attachment'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
    delete:
      tags:
      - Users.calendar
      summary: Microsoft Graph Delete navigation property attachments for users
      operationId: users.calendar.events.DeleteAttachments
      parameters:
      - name: If-Match
        in: header
        description: ETag
        schema:
          type: string
      responses:
        '204':
          description: Success
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
      x-ms-docs-operation-type: operation
  /users/{user-id}/calendar/events/{event-id}/attachments/$count:
    description: Provides operations to count the resources in the collection.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    - name: event-id
      in: path
      description: The unique identifier of event
      required: true
      schema:
        type: string
      x-ms-docs-key-type: event
    get:
      tags:
      - Users.calendar
      summary: Microsoft Graph Get the number of the resource
      operationId: users.calendar.events.attachments.GetCount-114f
      parameters:
      - $ref: '#/components/parameters/search'
      - $ref: '#/components/parameters/filter'
      responses:
        2XX:
          $ref: '#/components/responses/ODataCountResponse'
        4XX:
          $ref: '#/components/responses/error'
        5XX:
          $ref: '#/components/responses/error'
  /users/{user-id}/calendar/events/{event-id}/attachments/createUploadSession:
    description: Provides operations to call the createUploadSession method.
    parameters:
    - name: user-id
      in: path
      description: The unique identifier of user
      required: true
      schema:
        type: string
      x-ms-docs-key-type: user
    - name: event-id
   

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# Full source: https://raw.githubusercontent.com/api-evangelist/microsoft-graph/refs/heads/main/openapi/microsoft-graph-users-calendar-api-openapi.yml