Introducing types

No matter what implementation of GraphQL you use, the way its API is expressed is via the types that make up the schema, which is the blueprint that makes up a GraphQL API.

A GraphQL schema is nearly always written in Schema Definition Language (SDL). As noted in the GraphQL Documentation, this is a way of representing the structure of your API without worrying about language-specific syntax.

To write your schema, you need to understand the types that make up a schema.

Types vs fields

The majority of entities in a GraphQL schema are made up of types and fields. These are fairly straightforward to ...