Mental preparation

Before diving right into coding, you can greatly enhance the development experience for your project by mapping out the various services and features your app needs. Doing so will help reduce code duplication, frame your data flow, and lead the way for rapid feature development in the future.

A service is a class that typically handles processing and/or provides data to your app. Your usage of these services does not need to know the specifics of where the data came from, just that it can ask the service for its purpose and it will happen.