> ## Documentation Index
> Fetch the complete documentation index at: https://docs.eorion.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 创建

> Adds an identity link to a task by id. Can be used to link any user or group to a task
and specify a relation.



## OpenAPI

````yaml POST /task/{id}/identity-links
openapi: 3.0.2
info:
  title: ORION Platform REST API
  description: OpenApi Spec for ORION Camunda Platform REST API.
  version: 7.22.6-ee
  license:
    name: Apache License 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
servers:
  - url: http://{host}:{port}/{contextPath}
    description: The API server for the default process engine
    variables:
      host:
        default: localhost
      port:
        default: '8080'
      contextPath:
        default: engine-rest
  - url: http://{host}:{port}/{contextPath}/engine/{engineName}
    description: The API server for a named process engine
    variables:
      host:
        default: localhost
      port:
        default: '8080'
      contextPath:
        default: engine-rest
      engineName:
        default: default
  - url: '{url}'
    description: The API server with a custom url
    variables:
      url:
        default: ''
security:
  - basicAuth: []
tags:
  - name: Authorization
  - name: Batch
  - name: Condition
  - name: Decision Definition
  - name: Decision Requirements Definition
  - name: Deployment
  - name: Engine
  - name: Event Subscription
  - name: Execution
  - name: External Task
  - name: Filter
  - name: Group
  - name: Historic Activity Instance
  - name: Historic Batch
  - name: Historic Decision Definition
  - name: Historic Decision Instance
  - name: Historic Decision Requirements Definition
  - name: Historic Detail
  - name: Historic External Task Log
  - name: Historic Identity Link Log
  - name: Historic Incident
  - name: Historic Job Log
  - name: Historic Process Definition
  - name: Historic Process Instance
  - name: Historic Task Instance
  - name: Historic User Operation Log
  - name: Historic Variable Instance
  - name: History Cleanup
  - name: Identity
  - name: Incident
  - name: Job
  - name: Job Definition
  - name: Message
  - name: Metrics
  - name: Migration
  - name: Modification
  - name: Process Definition
  - name: Process Instance
  - name: Signal
  - name: Schema Log
  - name: Task
  - name: Task Attachment
  - name: Task Comment
  - name: Task Identity Link
  - name: Task Local Variable
  - name: Task Variable
  - name: Telemetry
  - name: Tenant
  - name: User
  - name: Variable Instance
  - name: Version
externalDocs:
  description: Find out more about ORION Rest API
  url: https://docs.eorion.com
paths:
  /task/{id}/identity-links:
    post:
      tags:
        - Task Identity Link
      summary: Add
      description: >-
        Adds an identity link to a task by id. Can be used to link any user or
        group to a task

        and specify a relation.
      operationId: addIdentityLink
      parameters:
        - name: id
          in: path
          schema:
            type: string
          required: true
          description: The id of the task to add a link to.
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/IdentityLinkDto'
            examples:
              example-1:
                summary: POST `/task/anId/identity-links`
                value:
                  groupId: aNewGroupId
                  type: candidate
      responses:
        '204':
          description: Request successful.
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExceptionDto'
          description: >-
            Task with given id does not exist. See the

            [Introduction](https://docs.camunda.org/manual/7.22/reference/rest/overview/#error-handling)
            for the error response format.
components:
  schemas:
    IdentityLinkDto:
      type: object
      required:
        - type
      properties:
        userId:
          type: string
          nullable: true
          description: >-
            The id of the user participating in this link. Either `userId` or
            `groupId` is set.
        groupId:
          type: string
          nullable: true
          description: >-
            The id of the group participating in this link. Either `groupId` or
            `userId` is set.
        type:
          type: string
          nullable: true
          description: >-
            The type of the identity link. The value of the this property can be
            user-defined. The Process Engine

            provides three pre-defined Identity Link `type`s:


            * `candidate`

            * `assignee` - reserved for the task assignee

            * `owner` - reserved for the task owner


            **Note**: When adding or removing an Identity Link, the `type`
            property must be defined.
    ExceptionDto:
      title: ExceptionDto
      type: object
      properties:
        type:
          type: string
          nullable: true
          description: An exception class indicating the occurred error.
        message:
          type: string
          nullable: true
          description: A detailed message of the error.
        code:
          type: number
          description: >-
            The code allows your client application to identify the error in an
            automated fashion.

            You can look up the meaning of all built-in codes and learn how to
            add custom codes

            in the [User
            Guide](https://docs.camunda.org/manual/7.22/user-guide/process-engine/error-handling/#exception-codes).
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic

````