How to get response body to retrofit exception?

Question

I am trying to connect to rest service via retrofit in android application. I am getting responses. But when there is some error response from the service, conversion exception occurs and now I want to do some actions based on the response body. But I am getting response body as NULL. But retrofit log has a error message. Why is this happening.

D/Reftofit log(24856): OkHttp-Received-Millis: 1397527055676
D/Reftofit log(24856): OkHttp-Response-Source: NETWORK 200
D/Reftofit log(24856): OkHttp-Sent-Millis: 1397527055492
D/Reftofit log(24856): Server: Apache/2.2.22 (Ubuntu)
D/Reftofit log(24856): X-Powered-By: PHP/5.3.10-1ubuntu3.10
D/Reftofit log(24856): {"result":"Invalid Token ID"}

Code:

public void failure(RetrofitError retrofitError) {
    String response = null;
    TokenError tokenError = (TokenError) retrofitError.getBodyAs(TokenError.class);
    response = tokenError.getErrorDetails();
    Log.e(TAG, response);
    if (response != null && response.contains("Invalid Token ID")) {
        GroupDataProvider.getInstance().onFailure();
    }

}

Here I am getting tokenError as null. I don't know why? Do I need to set something with rest adapter so that the response will be passed to retrofit error object.

Answer 1

Try this code:

@Override
public void failure(RetrofitError error) {
    String json =  new String(((TypedByteArray)error.getResponse().getBody()).getBytes());
    Log.v("failure", json.toString());
}

with Retrofit 2.0

@Override
public void onFailure(Call<Example> call, Throwable t) {
    String message = t.getMessage();
    Log.d("failure", message);
}