Best solution for running a asynchronous method in Asp.Net MVC controller?

Question

I'm pretty confused as too which method is going to be the best solution for me.

I have a controller that calls a method 'PostEventEmailMessage' and inside the method I call

// do some work
var queueClient = QueueClient.CreateFromConnectionString(serviceBusConnectionString, queueName);
var sequenceToCancel = queueClient.ScheduleMessageAsync(message, postEventTimeToSendEmail);
queueClient.CloseAsync(); 
// do remaining work

where I'm really confused is which method below is the best to make it run synchronously or if there is a better solution all together in Asp.Net MVC? It seems like the first 2 options have deadlock issues, according to the links I'm referencing.

Calling async method synchronously

How would I run an async Task<T> method synchronously?

Should I use 1.

var sequenceToCancel = queueClient.ScheduleMessageAsync(message, postEventTimeToSendEmail).GetAwaiter().GetResult();

2.

var sequenceToCancel = queueClient.ScheduleMessageAsync(message, postEventTimeToSendEmail).Result;

3.

var sequenceToCancel = Task.Run(() => queueClient.ScheduleMessageAsync(message, postEventTimeToSendEmail)).Result;

my controller looks something like this

public ActionResult SaveSpaceEvent(Details details) {
    _spaceservice.SaveSpaceEvent(details);
}

then the 'SaveSpaceEvent' method looks like this

public void SaveSpaceEvent(Details, details) {
    // do some stuff
    _messageService.PostEventEmailMessage(details)
    // do more stuff
}

and the async queue message is being called in 'PostEventEmailMessage'

Answer 1

Why do you ever want to call this method synchronously? Make your controller action async and call method with await:

public async Task<ActionResult> SomeAction()
{
    // ...
    var sequenceToCancel = await queueClient.ScheduleMessageAsync(message, postEventTimeToSendEmail);
    // ...
}