> ## 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. # 根据Id获取 > Retrieves a historic process instance by id, according to the `HistoricProcessInstance` interface in the engine. ## OpenAPI ````yaml GET /history/process-instance/{id} 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: /history/process-instance/{id}: get: tags: - Historic Process Instance summary: Get description: >- Retrieves a historic process instance by id, according to the `HistoricProcessInstance` interface in the engine. operationId: getHistoricProcessInstance parameters: - name: id in: path schema: type: string required: true description: The id of the historic process instance to be retrieved. responses: '200': content: application/json: schema: $ref: '#/components/schemas/HistoricProcessInstanceDto' examples: example-1: summary: >- GET `/history/process-instance/7c80cc8f-ef95-11e6-b6e6-34f39ab71d4e` value: id: 7c80cc8f-ef95-11e6-b6e6-34f39ab71d4e businessKey: null processDefinitionId: invoice:1:7bf79f13-ef95-11e6-b6e6-34f39ab71d4e processDefinitionKey: invoice processDefinitionName: Invoice Receipt processDefinitionVersion: 1 startTime: 2017-02-10T14:33:19.000+0200 endTime: null removalTime: null durationInMillis: null startUserId: null startActivityId: StartEvent_1 deleteReason: null rootProcessInstanceId: f8259e5d-ab9d-11e8-8449-e4a7a094a9d6 superProcessInstanceId: null superCaseInstanceId: null caseInstanceId: null tenantId: null state: ACTIVE restartedProcessInstanceId: 2bef365d-3406-11ef-bd73-0a0027000003 description: Request successful. '404': content: application/json: schema: $ref: '#/components/schemas/ExceptionDto' description: >- Not Found Historic process instance 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: HistoricProcessInstanceDto: type: object properties: id: type: string nullable: true description: The id of the process instance. rootProcessInstanceId: type: string nullable: true description: >- The process instance id of the root process instance that initiated the process. superProcessInstanceId: type: string nullable: true description: The id of the parent process instance, if it exists. superCaseInstanceId: type: string nullable: true description: The id of the parent case instance, if it exists. caseInstanceId: type: string nullable: true description: The id of the parent case instance, if it exists. processDefinitionName: type: string nullable: true description: >- The name of the process definition that this process instance belongs to. processDefinitionKey: type: string nullable: true description: >- The key of the process definition that this process instance belongs to. processDefinitionVersion: type: integer format: int32 nullable: true description: >- The version of the process definition that this process instance belongs to. processDefinitionId: type: string nullable: true description: >- The id of the process definition that this process instance belongs to. businessKey: type: string nullable: true description: The business key of the process instance. startTime: type: string format: date-time nullable: true description: >- The time the instance was started. Default [format](https://docs.camunda.org/manual/7.22/reference/rest/overview/date-format/) `yyyy-MM-dd'T'HH:mm:ss.SSSZ`. endTime: type: string format: date-time nullable: true description: >- The time the instance ended. Default [format](https://docs.camunda.org/manual/7.22/reference/rest/overview/date-format/) `yyyy-MM-dd'T'HH:mm:ss.SSSZ`. removalTime: type: string format: date-time nullable: true description: >- The time after which the instance should be removed by the History Cleanup job. Default [format](https://docs.camunda.org/manual/7.22/reference/rest/overview/date-format/) `yyyy-MM-dd'T'HH:mm:ss.SSSZ`. durationInMillis: type: integer format: int64 nullable: true description: The time the instance took to finish (in milliseconds). startUserId: type: string nullable: true description: The id of the user who started the process instance. startActivityId: type: string nullable: true description: >- The id of the initial activity that was executed (e.g., a start event). deleteReason: type: string nullable: true description: >- The provided delete reason in case the process instance was canceled during execution. tenantId: type: string nullable: true description: The tenant id of the process instance. state: type: string nullable: true enum: - ACTIVE - SUSPENDED - COMPLETED - EXTERNALLY_TERMINATED - INTERNALLY_TERMINATED description: >- Last state of the process instance, possible values are: `ACTIVE` - running process instance `SUSPENDED` - suspended process instances `COMPLETED` - completed through normal end event `EXTERNALLY_TERMINATED` - terminated externally, for instance through REST API `INTERNALLY_TERMINATED` - terminated internally, for instance by terminating boundary event restartedProcessInstanceId: type: string nullable: true description: The id of the original process instance which was restarted. 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 ````