What is GraphQL? 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 …

Find answers to the most common questions about GraphQL — from getting started to advanced use cases. This also covers frontend concerns and info about the official specification.

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 …

GraphQL is a query language for your API, and a server-side runtime for executing queries using a type system you define for your data. The GraphQL specification was open-sourced in 2015 …

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 …

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 clients can help you handle queries, mutations, and subscriptions to a GraphQL server. They use the underlying structure of a GraphQL API to automate certain processes.

Some articles introduce some of the philosophy developed within Facebook around designing and deploying GraphQL services, while others are more tactical suggestions for solving common …

When building or consuming a GraphQL API over HTTP, it’s common to run into errors, especially during development. Understanding how to recognize and resolve these issues can save you …