Handle Network error with Retrofit observable

Question

When using Observables with Retrofit how do you handle Network failure?

Given this code:

Observable observable = api.getApiService(         


        

Answer 1

As of Retrofit2 and RxJava2 there is no more RetrofitError exception. And its successor HttpException only represents HTTP error response codes. Network errors should be handled through IOException.

 @Override
 public void onError(Throwable e) {
     if (e instanceof IOException) {
            //handle network error
     } else if (e instanceof HttpException) {
            //handle HTTP error response code
     } else {
            //handle other exceptions
     } 
 }