We'll be using the retrofit library for our networking related stuffs. I have previously worked with
news api on other tutorials. So to save up some time, I am just copying and paste those codes from
other projects.
Basically, I have created RetrofitClient.java in singleton pattern. We'll be keeping our apis in
APIService.java file.
Depending on the api response, I have created the model, NewsApiResponse.java, Article.java and
Sources.java.