Speed is one of the biggest factors of good UX. A very effective way to increase your web app's speed is to reduce the amount of communication between server and client. This is even more for mobile applications.

GraphQL is a query framework that can dramatically reduce this amount of communication. It works by minimizing the data transmission volume and cutting the number of roundtrips between server and client. On top of that, GraphQL keeps your various APIs transparent and manageable.

This talk shows the business benefits of GraphQL and a live demo of how to implement GraphQL in a legacy RESTful environment.