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 …

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 …

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 specification typically used for remote client-server communications. Unlike SQL, GraphQL is agnostic to the data source (s) used to retrieve data and persist changes.

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 …

What is federated GraphQL? GraphQL federation applies those principles to GraphQL APIs. It enables organizations to build a unified GraphQL schema from multiple independent services …

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 …

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.

Nov 11, 2025 · Introduction Best Practices Frequently Asked Questions Training Courses Code GitHub Specification Libraries & Tools Services & Vendors Community Resources Events & …

Now that you’ve explored the GraphQL type system, how to query data from an API, and what the lifecycle of a request looks like, head over to the Best Practices section to learn more about …