Getting json from retrofit's response errorBody

Question

I am struggling with retrofit. When I post a request in my browser i get such a request:

And that\'s what I expect. However, when I try to parse this in my app I kept g

Answer 1

you use string(), not toString()

 ErrorResponse errorResponse = gson.fromJson(
                response.errorBody().toString(),
                ErrorResponse.class);

to

ErrorResponse errorResponse = gson.fromJson(
                response.errorBody().string(),
                ErrorResponse.class);

Answer 2

You are using toString() in GSON's fromJson which is not a JSON content. Replace your toString() as string() which will give you the JSON body. Also make sure to use the string() method only once and save the response in a variable, because it will return empty string if you used it again.