Server-side GraphQL

On server-side

GraphQL query documents can be flexible because the server holds a complete schema that describes the shape of data modeled by the API. It also holds the input that it can expect from clients. As API developers, we are responsible for accurately building a representation of our data. If this sounds like a lot of effort, don’t worry. The GraphQL server deals with the more mundane details in our business logic.

We’ll get into the nitty-gritty of how GraphQL schemas are built in the next chapter. However, let’s take a look at one of the most essential advantages that the GraphQL server provides: user input validation.