Retrieve workflow cron schedule

Community Support
1

Hello,

Is there any way to retrieve the cron schedule for a running workflow using the Java SDK?

The cron schedule is available using the REST API (http://localhost:8088/api/namespaces/default/workflows/<WF_ID>/<RF_ID>/history?waitForNewEvent=true), but I cannot see a way to retrieve it using the Java SDK.

Any help or advice would be much appreciated.

Many thanks

2

Currently you have to load the first event from history. You can use GetWorkflowExecutionHistoryRequest, for example:

GetWorkflowExecutionHistoryRequest request =
          GetWorkflowExecutionHistoryRequest.newBuilder()
              .setNamespace("default")
              .setExecution(execution)
             .setMaximumPageSize(1)
              .build();
      GetWorkflowExecutionHistoryResponse result =
          service.blockingStub().getWorkflowExecutionHistory(request);
      List<HistoryEvent> events = result.getHistory().getEventsList();
      String cronSchedule =
          events.get(0).getWorkflowExecutionStartedEventAttributes().getCronSchedule();
3

That works, thanks!

4

Added
.setMaximumPageSize(1) (updated code in the last post) as optimization.