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How to extend what data is published to Elasticsearch

Question asked by esilkensen on Jun 7, 2016
Latest reply on Jun 15, 2016 by gdharley
Is there a recommended way to extend what data is published to Elasticsearch?

For example, when reporting on processes in Kibana I'd like to include a user's name.  Is there a way to extend JSON such as

  "_index": "activiti_tenant_1",
  "_type": "process-instance-activities",
  "_id": "20024",
  "_score": null,
  "_source": {
    "historicActivityEntityId": "20024",
    "timeStamp": 1465242796222,
    "activityId": "sid-96849DA1-3FDE-475E-B31D-6F36BDEA4D27",
    "processDefinitionId": "ElasticsearchProcess:1:20004",
    "processInstanceId": "20020",
    "executionId": "20020",
    "activityName": "Activity 1",
    "tenantId": "tenant_1",
    "startTime": 1465242796222,
    "activityType": "userTask",
    "userId": "1",
    "processDefinitionKey": "ElasticsearchProcess"
  "fields": {
    "timeStamp": [
    "startTime": [
  "sort": [

so that it includes e.g. a "userName" field instead of only the "userId"?

Thanks in advance for any help!