1. Create a new SlooceApi with your environments configuration.

   using Slooce.NET;
   ...
   var slooceApi = new SlooceApi(new SlooceConfig("slooceurl", "sloocepassword"));
   

2. Register a user(make sure the user number includes country code)

   var registerResponse = await api.RegisterUserAsync("15555555555", "yourkeyword");
   //check result
   Console.WriteLine($"Register response: {registerResponse.Result}");
   

3. Send a text

   var textResponse = await api.SendMtMessageAsync("15555555555", "yourkeyword", "Hellow world");
   //check result
   Console.WriteLine($"Text response: {textResponse.Result}");
   

4. Dispose the api when you are done with it.

   slooceApi.Dispose();
   

The SlooceApi class uses a backing HttpClient for its web requests, so you should be using one SlooceApi throughout your application. The SlooceApi already takes care of DNS refresh issues when caching an HttpClient as well.

The SlooceApi should generate minimum garbage and uses caching wherever possible.