Introduction to GraphQL Schemas

This article describes the fundamental parts of schemas and how to create one.

GraphQL schemas are what GraphQL servers use to describe your data. The scheme defines a tree of types with fields that a data store then fills. They also specify what queries and clients can use mutations.

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What is GraphQLType languageSchema definition language (SDL)Type systemFieldsListsField nullabilityscalarobjectenumunionBeyondWhat is GraphQL

GraphQL is a query language for your API and ...