private void updateStateToCredsAvailable(UUID jobId) {
    try {
      jobStore.updateJobAuthStateToCredsAvailable(jobId);
      monitor.debug(() -> format("Updated job %s to CREDS_AVAILABLE", jobId), jobId,
          EventCode.API_JOB_CREDS_AVAILABLE);
    } catch (IOException e) {
      throw new RuntimeException("Unable to update job", e);
    }
  }
Reserves a worker to process a transfer job.
portability-api/src/main/java/org/datatransferproject/api/action/transfer/ReserveWorkerAction.java