Network Helper for RxJava, OkHttp, Gson

NetworkHelper.java

/**
  makes a GET call through OkHttp
  return an Observable of type defined by clazz
  Usage:  
  NetworkHelper.get(baseUrl, String.class).compose(applySchedulers()).subscribe(s->{
    Do Awesome Things Here
  })
**/

public static <E> Observable<E> get(final String url, final Class<E> clazz) {
    return Observable.create(new Observable.OnSubscribe<E>() {
      @Override public void call(Subscriber<? super E> subscriber) {
        try {
          Request request = new Request.Builder().url(url).get().build();
          Response response = BaseApplication.getInstance().okHttpClient.newCall(request).execute();
          String responseString = response.body().string();

          if (response.isSuccessful() && !subscriber.isUnsubscribed()) {
            E result = BaseApplication.getInstance().gson.fromJson(responseString, clazz);
            subscriber.onNext(result);
            subscriber.onCompleted();
          }
        } catch (Exception e) {
          if (!subscriber.isUnsubscribed()) subscriber.onError(e);
        }
      }
    });
  }
  
  <T> Observable.Transformer<T, T> applySchedulers() {
    return observable -> observable.subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread());
  }