How to get string response from Retrofit2?

Question

I am doing android, looking for a way to do a super basic http GET/POST request. I keep getting an error:

java.lang.IllegalArgumentException: Unable to creat         


        

Answer 1

You can try the following:

build.gradle file:

dependencies {
    ...
    compile 'com.squareup.retrofit2:retrofit:2.0.1'
    ...
}

WebAPIService:

@GET("/api/values")
Call getValues();

Activity file:

        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(API_URL_BASE)                    
                .build();

        WebAPIService service = retrofit.create(WebAPIService.class);

        Call stringCall = service.getValues();
        stringCall.enqueue(new Callback() {
            @Override
            public void onResponse(Call call, Response response) {
                Log.i(LOG_TAG, response.body());
            }

            @Override
            public void onFailure(Call call, Throwable t) {
                Log.e(LOG_TAG, t.getMessage());
            }
        });

I have tested with my Web serivce (ASP.Net WebAPI):

public class ValuesController : ApiController
{
        public string Get()
        {
            return "value1";
        }
}

Android Logcat out: 04-11 15:17:05.316 23097-23097/com.example.multipartretrofit I/AsyncRetrofit2: value1

Hope it helps!