How can I use a method async Task and return string, and then how do I pass a delegate for that method to a constructor and use it later?

Question

I have this method that returns string:

public string SendResponse(HttpListenerRequest request)
{
    string result = \"\";
    string key = req         


        

Answer 1

Declare SendResponse as a Task. This says that this Task will return a string.

public async Task SendResponse(HttpListenerRequest request)
{
    ...
}

And in whenever you're calling it:

string result = await SendRespone(request);