如何在拦截中更改响应主体（使用改造 2）

Question

I read thousand of answers and try to a lot of way but doesn't work. I really need to change response body when get "401". Because server response is different from other general response when unauthorized.

I'm using retrofit 2. To catch response i'm using Interceptor:

                Request original = chain.request();
                Request.Builder requestBuilder = original.newBuilder()
                        .header("authorization", getAccessToken(context));
                Request request = requestBuilder.build();
                Response response= chain.proceed(request);
                if (response.code()==401) {
                    MediaType contentType = response.body().contentType();
                    ResponseBody body = ResponseBody.create(contentType, CommonFunctions.getUnAuthorizedJson(context).toString());
                    return response.newBuilder().body(body).build();
                }else{
                    return response;
                }

But still body doesn't change on client.enque method.

Answer 1

You can change body in this way, but Retrofit will eventually see 401 and throw HttpException with standart message, what can be misleading

check that you get your body right:

val errorConverter: Converter<ResponseBody, ErrorResponse> =
        retrofit.responseBodyConverter(
            ErrorResponse::class.java,
            emptyArray()
        )

val errorResponse = httpException
            .response()
            ?.errorBody()
            ?.let (errorConverter::convert)