Before we can start making requests, we need to build a Retrofit object that will be used to create services. For this purpose, we will create a class, called RetrofitYahooServiceFactory, to create a Retrofit object and then service interface objects that will be used to make queries.

The following examples assume that in the end, we want to query this URL:

At first look, it may seem a bit too convoluted, but by taking everything apart we will show how Retrofit can help us to make HTTP requests in this case.