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

Note that if you let an observable emit onError, all upstream observables will shut down - regardless of whether you "catch" it with onErrorReturn or onErrorResumeNext. Often you don't want that. For example, if your stream starts with a button click that triggers a retrofit request which fails, then the button clicks won't be recognized anymore since the stream terminated.

Use Observable> or Observable> to also handle retrofit errors in onNext().

s. http://blog.danlew.net/2015/12/08/error-handling-in-rxjava/