Getting JSON from RetrofitError object using Retrofit

Question

I am using the Retrofit library to do REST calls to a service I am using.

If I make an API call to my service and have a failure, the service returns a bit of JSON

Answer 1

Two-Liner with getBodyAs to get a JSON Object.

JsonObject responseAsJson = (JsonObject) retrofitError.getBodyAs(JsonElement.class);

String message = responseAsJson.get("error").getAsString(); //=> "Username already in use"

Confirmed working in Retrofit 1.x. Not sure what changes are required for Retrofit 2.x.