Use the await and yield Functions to Retrieve Results

To retrieve the task result, we can use the Task.await/1 or the Task.yield/1 function. Both accept a Task struct as an argument. There is an essential difference in how await/1 and yield/1 work, so we have to choose wisely. They both stop the program and try to retrieve the task’s result. The difference comes from the way they handle process timeouts.

The await function

Process timeouts ensure that processes don’t get stuck waiting forever. Let’s increase the time of the send_email/1 function to 30 seconds:

Here is the executable command: