Retrofit.java

//Create a Model that represents your JSON data (It’s ok if fields are missing that are present in JSON)
public class User {   
    public String avatar_url; 
    public String login;
}

//Create an interface
public interface Github { 
    @GET(“/search/users”) UserResponse users(@Query(“q”) String name);
}

//Auto Generate implementation from Interface
Github api = new RestAdapter.Builder()
            .setEndpoint(“https://api.github.com")
            .build()
            .create(Github.class)

// user your endpoint
UserResponse response =api.users(request.getName());