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Modify Process Instance Execution State Async

Submits a list of modification instructions to change a process instance's execution state async. A modification instruction is one of the following:

Starting execution before an activity
Starting execution after an activity on its single outgoing sequence flow
Starting execution on a specific sequence flow
Cancelling an activity instance, transition instance, or all instances (activity or transition) for an activity

Instructions are executed asynchronous and in the order they are provided in this request's body. Variables can be provided with every starting instruction.

The exact semantics of modification can be read about in the user guide.

Method

POST /process-instance/{id}/modification-async

Parameters

Path Parameters

Name	Description
id	The id of the process instance to modify.

Request Body

A JSON object with the following properties:

Name Description

skipCustomListeners Skip execution listener invocation for activities that are started or ended as part of this request.

skipIoMappings Skip execution of input/output variable mappings for activities that are started or ended as part of this request.

instructions

A JSON array of modification instructions. The instructions are executed in the order they are in. An instruction may have the following properties:

type	Mandatory. One of the following values: `cancel`, `startBeforeActivity`, `startAfterActivity`, `startTransition`. A `cancel` instruction requests cancellation of a single activity instance or all instances of one activity. A `startBeforeActivity` instruction requests to enter a given activity. A `startAfterActivity` instruction requests to execute the single outgoing sequence flow of a given activity. A `startTransition` instruction requests to execute a specific sequence flow.
activityId	Can be used with instructions of types `startBeforeActivity`, `startAfterActivity`, and `cancel`. Specifies the activity the instruction targets.
transitionId	Can be used with instructions of types `startTransition`. Specifies the sequence flow to start.
activityInstanceId	Can be used with instructions of type `cancel`. Specifies the activity instance to cancel. Valid values are the activity instance IDs supplied by the Get Activity Instance request.
transitionInstanceId	Can be used with instructions of type `cancel`. Specifies the transition instance to cancel. Valid values are the transition instance IDs supplied by the Get Activity Instance request.
ancestorActivityInstanceId	Can be used with instructions of type `startBeforeActivity`, `startAfterActivity`, and `startTransition`. Valid values are the activity instance IDs supplied by the Get Activity Instance request. If there are multiple parent activity instances of the targeted activity, this specifies the ancestor scope in which hierarchy the activity/transition is to be instantiated. Example: When there are two instances of a subprocess and an activity contained in the subprocess is to be started, this parameter allows to specify under which subprocess instance the activity should be started.

Result

A JSON object corresponding to the Batch interface in the engine. Its properties are as follows:

Name	Value	Description
id	String	The id of the created batch.
type	String	The type of the created batch.
totalJobs	Number	The total jobs of a batch is the number of batch execution jobs required to complete the batch.
batchJobsPerSeed	Number	The number of batch execution jobs created per seed job invocation. The batch seed job is invoked until it has created all batch execution jobs required by the batch (see `totalJobs` property).
invocationsPerBatchJob	Number	Every batch execution job invokes the command executed by the batch `invocationsPerBatchJob` times. E.g., for a process instance modification batch this specifies the number of process instances which are modified per batch execution job.
seedJobDefinitionId	String	The job definition id for the seed jobs of this batch.
monitorJobDefinitionId	String	The job definition id for the monitor jobs of this batch.
batchJobDefinitionId	String	The job definition id for the batch execution jobs of this batch.
tenantId	String	The tenant id of the batch.

Response Codes

Code	Media type	Description
200	application/json	Request successful.
400	application/json	At least one modification instruction misses required parameters.
403	application/json	If the user is not allowed to execute batches. See the Introduction for the error response format.
500	application/json	The modification cannot be performed, for example because it starts a failing activity.

Example

Request

POST /process-instance/aProcessInstanceId/modification-async

Request Body:

{
"skipCustomListeners": true,
"skipIoMappings": true,
"instructions": [
    {
      "type": "startBeforeActivity",
      "activityId": "activityId"
    },
    {
      "type": "cancel",
      "activityInstanceId": "anActivityInstanceId",
    }
  ]
}

Response

Status 200.

{
  "id": "aBatchId",
  "type": "instance-modification",
  "totalJobs": 10,
  "batchJobsPerSeed": 100,
  "invocationsPerBatchJob": 1,
  "seedJobDefinitionId": "aSeedJobDefinitionId",
  "monitorJobDefinitionId": "aMonitorJobDefinitionId",
  "batchJobDefinitionId": "aBatchJobDefinitionId",
  "tenantId": "aTenantId"
}

Options