Is there an API that shows the user task histroy on the Camunda side? - spring

Question

I have a Camunda flow, there are 2-3 user tasks in this flow. I want to see their history after completing these tasks. There are a couple of methods, but I just want to get both the label and the entered value with rest-api.
I can't get them directly with rest-api.
The following method returns variables with the processInstanceId.
List<HistoricVariableInstance> instances = historyService.createHistoricVariableInstanceQuery()
.processInstanceId(processIntanceId)
.list();
but I need to call another rest-api to get the labels. GET /process-definition/{id}/xml with this api.
Other topics have been opened for this, but it does not meet exactly what I want.
similar question

Answer 1

I think you are right, you need 2 steps. I would combine the following requests:
First get all User Tasks:
GET /history/task -see API Reference
From its result Array you need the id and the name (which is the label):
[{"id":"anId",
...
"name":"aName",
...
}]
Now you can get the variables for each UserTask, like
GET /history/variable-instance?taskIdIn=YourTaskId see API Reference

Answer 2

https://docs.camunda.org/manual/7.16/reference/rest/history/variable-instance/post-variable-instance-query/
returns the name (label) and the value of the process variables
[
{
"id": "someId",
"name": "someVariable",
"type": "Integer",
"variableType": "integer",
"value": 5,
"valueInfo": {},
"processDefinitionKey": "aProcessDefinitionKey",
"processDefinitionId": "aProcessDefinitionId",
"processInstanceId": "aProcInstId",
"executionId": "aExecutionId",
"activityInstanceId": "aActivityInstId",
"caseDefinitionKey": null,
"caseDefinitionId": null,
"caseInstanceId": null,
"caseExecutionId": null,
"taskId": null,
"tenantId": null,
"errorMessage": null,
"state": "CREATED",
"createTime":"2017-02-10T14:33:19.000+0200",
"removalTime": "2018-02-10T14:33:19.000+0200",
"rootProcessInstanceId": "aRootProcessInstanceId"
}
]