Now that you know some key GraphQL concepts, you’re ready to learn about all of the different aspects of its type system. For an in-depth learning experience with practical tutorials, see the …

GraphQL supports three main operation types—queries, mutations, and subscriptions. We have already seen several examples of basic queries in this guide, and on this page, you’ll learn in …

There are many resources available to help you learn GraphQL, including this website. In our documentation, you’ll find a series of articles that explain essential GraphQL concepts and …

Training Courses A number of GraphQL training courses are available: GraphQL-JS tutorial Yoga GraphQL Server Tutorial: Open source tutorial for creating modern GraphQL Servers in Node, …

GraphQL allows you to add documentation to the types, fields, and arguments in a schema. In fact, the GraphQL specification encourages you to do this in all cases unless the name of the …

The reference implementation of the GraphQL specification, designed for running GraphQL in a Node.js environment.

GraphQL is an open‑source query language for APIs and a server‑side runtime. It provides a strongly‑typed schema to define relationships between data, making APIs more flexible and …

Though not yet finalized, this draft specification acts as a single source of truth for GraphQL client and library maintainers, detailing how to expose and consume a GraphQL API using an HTTP …

GraphQL federation applies those principles to GraphQL APIs. It enables organizations to build a unified GraphQL schema from multiple independent services (most often called subgraphs), …

With GraphQL, you model your business domain as a graph by defining a schema; within your schema, you define different types of nodes and how they connect/relate to one another.