New Post: Stream filter by URL Pattern

Hi, i am using Tweetinvi for a project where I have to track the stream of tweets that cointains an URL pattern like:

project.com/Promo?key=34FSJDJS (key is what changes from one tweet to another)

I was trying this way:

stream = Stream.CreateFilteredStream();
stream.AddTrack("project.com/Promo")
stream.MatchingTweetReceived += (sender, args) => { ProccessTweet(args.Tweet); };
stream.StartStreamMatchingAllConditions();

but it does not work correctly.

Does someone know how to do it?

Thanks