Get response from retrofit API call

I am trying to use retrofit2 to make an api call, here's my code

public class MainActivity extends Activity implements Callback<List<Repo>>{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ApiCLient apiCLient = new ApiCLient(); IApiService apiService = apiCLient.getApiService(); Call<List<Repo>> call = apiService.getRepos(); call.enqueue(this); } @Override public void onResponse(Call<List<Repo>> call, Response<List<Repo>> response) { if (response.isSuccessful()) { List<Repo> repos = response.body(); } else { ResponseBody a = response.errorBody(); Log.d("asd", response.errorBody().toString()); } } @Override public void onFailure(Call<List<Repo>> call, Throwable t) { Log.d("asd", t.getLocalizedMessage()); } } 

I'm not getting any response. Also, debugger is not entering the onResponse or onFailure methods.

ApiClient class

private IApiService mService; static final String BASE_URL = "https://api.github.com"; public ApiCLient(){ Retrofit retrofit = null; try { Gson gson = new GsonBuilder().setLenient().create(); retrofit = new Retrofit.Builder() .baseUrl(BASE_URL) .addConverterFactory(GsonConverterFactory.create(gson)) .build(); } catch (Exception e){ e.printStackTrace(); } mService = retrofit.create(IApiService.class); } public IApiService getApiService(){ return mService; } 

And finally, IApiService interface

public interface IApiService { @GET("https://api.github.com/repositories?since=364") Call<List<Repo>> getRepos(); }