> ## 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. # 触发条件评估 > Triggers evaluation of conditions for conditional start event(s). Internally this maps to the engines condition evaluation builder method ConditionEvaluationBuilder#evaluateStartConditions(). For more information see the [Conditional Start Events](https://docs.camunda.org/manual/7.22/reference/bpmn20/events/conditional-events/#conditional-start-event) section of the [BPMN 2.0 Implementation Reference](https://docs.camunda.org/manual/7.22/reference/bpmn20/). ## OpenAPI ````yaml POST /condition 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: /condition: post: tags: - Condition summary: Evaluate description: >- Triggers evaluation of conditions for conditional start event(s). Internally this maps to the engines condition evaluation builder method ConditionEvaluationBuilder#evaluateStartConditions(). For more information see the [Conditional Start Events](https://docs.camunda.org/manual/7.22/reference/bpmn20/events/conditional-events/#conditional-start-event) section of the [BPMN 2.0 Implementation Reference](https://docs.camunda.org/manual/7.22/reference/bpmn20/). operationId: evaluateCondition requestBody: content: application/json: schema: $ref: '#/components/schemas/EvaluationConditionDto' examples: example-1: summary: POST /condition description: The content of the Request Body value: variables: temperature: value: 24 type: Integer valueInfo: transient: true city: value: Parma type: String businessKey: aBusinessKey tenantId: aTenantId responses: '200': content: application/json: schema: type: array items: $ref: '#/components/schemas/ProcessInstanceDto' examples: example-1: summary: Status 200 Response description: The Response content of a status 200 value: - links: [] id: aProcInstId definitionId: aProcDefId businessKey: aBusinessKey caseInstanceId: null ended: false suspended: false tenantId: aTenantId - links: [] id: anotherId definitionId: aProcDefId businessKey: aBusinessKey caseInstanceId: null ended: false suspended: false tenantId: aTenantId description: Request successful. '400': content: application/json: schema: $ref: '#/components/schemas/ExceptionDto' description: If both tenantId and withoutTenantId are supplied. '403': content: application/json: schema: $ref: '#/components/schemas/AuthorizationExceptionDto' description: >- If the user is not allowed to start the process instance of the process definition, which start condition was evaluated to `true`. components: schemas: EvaluationConditionDto: type: object properties: variables: type: object nullable: true additionalProperties: $ref: '#/components/schemas/VariableValueDto' description: >- A map of variables which are used for evaluation of the conditions and are injected into the process instances which have been triggered. Each key is a variable name and each value a JSON variable value object with the following properties. businessKey: type: string nullable: true description: >- Used for the process instances that have been triggered after the evaluation. tenantId: type: string nullable: true description: >- Used to evaluate a condition for a tenant with the given id. Will only evaluate conditions of process definitions which belong to the tenant. withoutTenantId: type: boolean nullable: true description: >- A Boolean value that indicates whether the conditions should only be evaluated of process definitions which belong to no tenant or not. Value may only be true, as false is the default behavior. processDefinitionId: type: string nullable: true description: >- Used to evaluate conditions of the process definition with the given id. ProcessInstanceDto: allOf: - type: object properties: id: type: string nullable: true description: The id of the process instance. definitionId: 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. caseInstanceId: type: string nullable: true description: >- The id of the case instance associated with the process instance. ended: type: boolean nullable: true deprecated: true description: >- A flag indicating whether the process instance has ended or not. Deprecated: will always be false! suspended: type: boolean nullable: true description: >- A flag indicating whether the process instance is suspended or not. tenantId: type: string nullable: true description: The tenant id of the process instance. - $ref: '#/components/schemas/LinkableDto' 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). AuthorizationExceptionDto: allOf: - type: object properties: userId: type: string nullable: true description: The id of the user that does not have expected permissions missingAuthorizations: type: array nullable: true items: $ref: '#/components/schemas/MissingAuthorizationDto' description: '' - $ref: '#/components/schemas/ExceptionDto' VariableValueDto: type: object properties: value: $ref: '#/components/schemas/AnyValue' type: type: string nullable: true description: The value type of the variable. valueInfo: type: object additionalProperties: true description: >- A JSON object containing additional, value-type-dependent properties. For serialized variables of type Object, the following properties can be provided: * `objectTypeName`: A string representation of the object's type name. * `serializationDataFormat`: The serialization format used to store the variable. For serialized variables of type File, the following properties can be provided: * `filename`: The name of the file. This is not the variable name but the name that will be used when downloading the file again. * `mimetype`: The MIME type of the file that is being uploaded. * `encoding`: The encoding of the file that is being uploaded. The following property can be provided for all value types: * `transient`: Indicates whether the variable should be transient or not. See [documentation](https://docs.camunda.org/manual/7.22/user-guide/process-engine/variables#transient-variables) for more informations. (Not applicable for `decision-definition`, ` /process-instance/variables-async`, and `/migration/executeAsync` endpoints) LinkableDto: type: object properties: links: type: array nullable: true items: $ref: '#/components/schemas/AtomLink' description: >- The links associated to this resource, with `method`, `href` and `rel`. MissingAuthorizationDto: type: object properties: permissionName: type: string nullable: true description: The permission name that the user is missing. resourceName: type: string nullable: true description: The name of the resource that the user is missing permission for. resourceId: type: string nullable: true description: The id of the resource that the user is missing permission for. AnyValue: description: |- Can be any value - string, number, boolean, array or object. **Note**: Not every endpoint supports every type. AtomLink: type: object properties: rel: type: string nullable: true description: The relation of the link to the object that belongs to. href: type: string nullable: true description: The url of the link. method: type: string nullable: true description: The http method. securitySchemes: basicAuth: type: http scheme: basic ````