Learn React with TypeScript 3

Summary

GraphQL shines over REST because it allows us to efficiently get the data we need in the shape we need with far less effort. The GitHub GraphQL Explorer is a great tool for getting comfortable with the syntax. There are two main types of requests we can make to a GraphQL server:

• We can execute a query to read data
• We can execute a mutation to write data

Queries allow us to specify the objects and fields we want in the response. We can rename them by using aliases. We can parameterize a query by defining variables. We can give variables types and specify whether each one is required or not with ! at the end. There are query features that we didn't cover in this chapter, such as conditionally including fields and the powerful paging ...