GraphQL is a rapidly-ascending alternative to REST for implementing Web services. Developed by Facebook, GraphQL is popular in Web development. And, where Web service development goes, mobile app development — including Android — inevitably follows. This book helps you understand what GraphQL is and how to communicate with a GraphQL server, both in terms of GraphQL specifications and syntax and in terms of Android code for reaching those servers. We start off with a quick spin through making GraphQL requests, using canned tools and custom Android apps.