We start out in Chapter 1 by introducing the basics of GraphQL in contrast to REST. Then in Chapters 2–4 we go through the whole GraphQL specification from its basic building blocks. We also have an extensive Background chapter that covers everything from JSON to HTTP to server-side rendering.

In the client chapters, we cover topics like infinite scrolling, local state, performance, and working offline. In our server chapter we cover seven data sources, including Elasticsearch, Rethink, and Prisma. We also cover security and various performance improvements.

Chapters 5–10 are all about the client. You can make an HTTP request to a GraphQL API from anywhere, or you can use an advanced client library with automatic caching and view layer integration. We have chapters on React, Vue, React Native, iOS, and Android.

If you're a backend dev, we've got you covered. Chapter 11 is our longest chapter, and it goes through all the server topics you could want: server structure, connecting to different databases and APIs, subscriptions, authentication, authorization, caching, testing, and more.

React is becoming the lingua franca of modern web dev, so this is our longest client chapter. We go through everything in the React Apollo library, including the render prop API, the HOC API, managing local state, subscriptions, optimistic updates, error handling, pagination, persisting, SSR, and more.

From getting set up to implementing infinite scroll, our Vue chapter teaches the Apollo Vue library. Add a provider to your root component, add a query when creating a component, and access the loading state and response data in the template. Or use the ApolloQuery component directly in your template.

In addition to our React Native chapter, we also have a native iOS chapter that uses the Apollo iOS Swift client. Get your query and mutation results in query-specific Swift types, and access an automatically managed cache of data that you've fetched previously.

In addition to our React Native chapter, we also have a native Android chapter based on the Apollo-Android library. Get typed Java models generated from your queries and mutations, make your own custom scalars, save query responses in the cache, or get RxJava Observables.