How to call asynchronous method from synchronous method in C#?

Question

I have a public async void Foo() method that I want to call from synchronous method. So far all I have seen from MSDN documentation is calling async methods via

Answer 1

async Main is now part of C# 7.2 and can be enabled in the projects advanced build settings.

For C# < 7.2, the correct way is:

static void Main(string[] args)
{
   MainAsync().GetAwaiter().GetResult();
}


static async Task MainAsync()
{
   /*await stuff here*/
}

You'll see this used in a lot of Microsoft documentation, for example: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-dotnet-how-to-use-topics-subscriptions