Shutdown .Netcore IHostedService as Console App

Question

I have built Generic Host (IHostedService) in .netcore 2.2. I am running HostBuilder as RunConsoleAsync(). RunConsoleAync() will wait for Ctrl + C to close application. I want to close console app as soon as StartAsync() process complete instead of user has to press ctrl + c.

I tried to Invoke StopAsync() with new CancellationToken(true), but it is not helping me.

I developed this as IHostedService, because this app will be deployed on multiple plateform.

Answer 1

I assume you have the IHostedService implementation in place. All you need to do is inject IHostApplicationLifetime and use that to stop the application as shown below:

    public class Service : IHostedService
{
    private readonly IHostApplicationLifetime _applicationLifetime;
    public Service(IHostApplicationLifetime applicationLifetime)
    {
        _applicationLifetime = applicationLifetime;
    }

    public Task StartAsync(CancellationToken cancellationToken)
    {
        ...

        _applicationLifetime.StopApplication();
        return Task.CompletedTask;
    }

    ...
}