Querying UserTasks

[SCLStefan]

Hi,

can you please tell me how to query UserTasks. Querying external Tasks works fine, but when I call

List<Camunda.Api.Client.UserTask.UserTaskInfo> allUserTasks = await camunda.UserTasks.Query(taskQuery).List();

no results are returned. What am I doing wrong?

Best regards Stefan

[SamuelMeza]

The await operator indicates this is an asynchronous operation, ideally, you should wrap this call in a method that implements the async operator, for example:

        public async Task<List<UserTaskInfo>> AcquireUserTasksAsync(TaskQuery taskQuery)
        {
                    return await _camunda.UserTasks.Query(taskQuery).List();
        }

then you can use this in other asynchronous operations or just call Wait() and/or Result to wait for the operation to complete and extract the value,

        Task<List<UserTaskInfo>> task = AcquireUserTasksAsync(someTaskQuery);
        task.Wait();
        List<UserTaskInfo> list = task.Result;

a word of caution, Wait() and Result can introduce deadlocks depending on how this gets implemented so take extra care when using them.

[SCLStefan]

Hi Samuel,

this didn't work. But I have discovered, when I remove the following two properties from the class TaskQuery (file UserTask -> TaskQuery.cs) results are returned:

        /// <summary>
        /// Only include tasks which have a candidate group.
        /// </summary>
        public bool WithCandidateGroups;

        /// <summary>
        /// Only include tasks which have no candidate group.
        /// </summary>
        public bool WithoutCandidateGroups;

But I don't know why this is so - I didn't set these props in my code.

[jlucansky]

WithCandidateGroups and WithoutCandidateGroups are now nullables. It should work as expected.