如何创建不结束但等待事件的控制台应用程序？

Question

I want to create a bot with the twitter stream API. So basically an event gets triggered and I do something.

I want to let it run in a docker container in a linux-environment.

The issue I have is that my console just closes itself. Here is my code

public static async Task Main()
{
    var  credentials = new TwitterCredentials(consumerKey: "",
                                              consumerSecret: "",
                                              accessToken: "",
                                              accessTokenSecret: "");    
    var stream = Tweetinvi.Stream.CreateFilteredStream(credentials);

    stream.AddFollow(someUserId,
                     tweet =>
                     {
                         doSomething(tweet);
                     });

    stream.MatchingTweetReceived += (s, e) =>
    {
        doSomething(e.Tweet);
    };

    await stream.StartStreamMatchingAllConditionsAsync();
}

I wait for the Stream to be started but then the console closes itself. I'm not waiting for any events. How can I change this?

Answer 1

It sounds like StartStreamMatchingAllConditionsAsync completes at some point, and this is causing your application to exit.

What you need is something that you can await on but will never complete. Task.Delay can do this for you. Just make this the last line of your function:

await Task.Delay(-1);