A good solution for await in try/catch/finally?

Question

I need to call an async method in a catch block before throwing again the exception (with its stack trace) like this :

try
{
    //         


        

Answer 1

You should know that since C# 6.0, it's possible to use await in catch and finally blocks, so you could in fact do this:

try
{
    // Do something
}
catch (Exception ex)
{
    await DoCleanupAsync();
    throw;
}

The new C# 6.0 features, including the one I just mentioned are listed here or as a video here.