Async Main

A new feature of language C# 7.1 that enables entry-point that is, Main of an application. Async main enables main method to be awaitable that mean Main method is now asynchronous to get Task or Task<int>. With this feature followings are valid entry-points:

static Task Main()
{
    //stuff goes here
}
static Task<int> Main()
{
    //stuff goes here
}
static Task Main(string[] args)
{
    //stuff goes here
}
static Task<int> Main(string[] args)
{
    //stuff goes here
}

Restrictions while using new signatures

• You can use these new signature entry-points and these marked as valid if no overload of previous signature is present that means if you are using an existing entry-point.

public static void Main()
{
    NewMain().GetAwaiter().GetResult();
}
private static async Task NewMain()
{
    //async stuff goes here
}

• This is not mandatory to mark your entry-point as async that means you can still use the existing async entry-point:

private static void Main(string[] args...