I have written a test app to help me understand await/async. I have a method MethodAsync1() which works fine. However when I call it from Main(), I cant figure out how to await for the MethodAsync1() to complete. See code below.
class Program
{
static void Main(string[] args)
{
Debug.WriteLine(DateTime.Now + " Main()1");
Task<String> v1 = MethodAsync1();
Debug.WriteLine(DateTime.Now + " Main()2 - prints out before Method1 finishes");
// I now want to wait for MethosAsync1() to complete before I go further.
// This line has error:
// Error 1 The 'await' operator can only be used within an async
// method. Consider marking this method with the 'async' modifier and
// changing its return type to 'Task'.
String v2 = await v1;
Debug.WriteLine(DateTime.Now + " Main()3 - Method1() now finished");
}
static async Task<String> MethodAsync1()
{
Debug.WriteLine(DateTime.Now + " Method1()1 ");
HttpClient client = new HttpClient();
Task<HttpResponseMessage> responseTask = client.GetAsync("http://bbc.co.uk");
// Do other stuff
Debug.WriteLine(DateTime.Now + " Method1()2 ");
// Wait for it to finish - yield thread back to Main()
var response= await responseTask;
// responseTask has completed - so thread goes back here and method returns fully
Debug.WriteLine(DateTime.Now + " Method1()3 ");
return "finished";
}
}
