Retrofit Observables and access to Response - retrofit

Question

I'm using Retrofit and RxJava but can't seem to do what I want.
Here's my declaration of my web service:
Observable<Response> rawRemoteDownload(#Header("Cookie") String token, #Path("programId") int programId);
The problem I have is the webservice is returning a 403 and a json payload with details.
Retrofit calls onError, only passing the Throwable so I can't check the response body.
Here's part of my test code
apiManager.rawRemoteDownloadRequest("token", 1).subscribe(new Observer<Response>() {
#Override
public void onCompleted() {
}
#Override
public void onError(Throwable e) {
// this is called and I've lost the response!
}
#Override
public void onNext(Response response) {
}
});
SOLUTION:
Thanks to Gomino, I went with this as a solution:
new Action1<Throwable>() {
#Override
public void call(Throwable throwable) {
if (throwable instanceof RetrofitError) {
Response response = ((RetrofitError) throwable).getResponse();
System.out.println(convertToString(response.getBody()));
}
}
where convertToString looks like:
private String convertToString(TypedInput body) {
byte[] bodyBytes = ((TypedByteArray) body).getBytes();
return new String(bodyBytes);
}

Answer 1

Check if the throwable is a RetrofitError:
#Override
public void onError(Throwable e) {
if (e instanceof RetrofitError) {
Response response = ((RetrofitError) e).getResponse();
}
}