Task.Run without wait ?

Question

In .NET core 2.0 application, have requirement to run task in a background. 1 option is to use IHostedService, However can use Task.Run(() => DoSomething(a,b,c)) without wait ?
I got to know it is risky, as if any exception occurred in the background method (DoSomething), can crash application. If that can handle by Try..Catch, any other disadvantage of using Task.Run() for background method.
Thanks.

Answer 1

Hello @Omkar Pimplekar

Here is one option using ForGet, which requires the following NuGet package.

public static async Task<bool> SomeTask()  
{  
    return await Task.Run(async () =>  
    {  
        await Task.Delay(2000);  
        Console.WriteLine("hello");  
        return true;  
    });  
  
}  

Usage

Console.WriteLine("Before");  
SomeTask().Forget();  
Console.WriteLine("After");  

Results where hello shows up after "after". Now there is a caveat, if code can fail make sure that the calling method wraps the code in a try/catch and that the calling method is not marked as void else the exception is not bubbled up to the caller.

Before  
After  
hello  

Answer 2

You can fire and forget with Task.Run(() => DoSomething()).ConfigureAwait(false);, but use it at your own risk as you've mentioned.