Catch http response in Retrofit before passing it to the calling activity

Question

Right now we are using retrofit like this:

service.executeSomeRequest(UserPreferenceRequest userPreferenceRequest, new Callback         


        

Answer 1

Your custom callback can process the response in the base class first and then delegate to an abstract method.

public interface StatusResponse {
  Status getStatus();
}

public abstract class CustomCallback implements Callback {
  @Override public final void success(T data, Response response) {
    if (data.getStatus() == Status.OK) {
      success(data);
    } else {
      // Handle error..
    }
  }

  public abstract void success(T data);
}