The journey through data fetching in React has come to an end, and you now know how to send and retrieve data to and from API endpoints. We saw how data flow works in React and why the approach it enforces can make our applications simple and clean.

We went through some of the most common patterns to make children and parents communicate using callbacks. We learned how we could use a common parent to share data across components that are not directly connected.

In the second section, we started with a simple component, which was able to load data from GitHub, and we made it reusable, thanks to HoCs. We have now mastered the techniques that let us abstract the logic away from components so that we can make them as dumb as possible, thus improving their testability.

We learned how we could use react-refetch to apply data fetching patterns to our components and avoid reinventing...