GraphQL is a query language for APIs that provides a more efficient and flexible alternative to traditional REST-based API architectures. Developed and open-sourced by Facebook in 2015, GraphQL is quickly becoming the de-facto standard for building modern, data-driven applications.
At its core, GraphQL is a declarative language that allows clients to specify exactly the data they need from an API. Instead of multiple endpoints that return fixed data structures, a GraphQL API only has a single endpoint that accepts queries.
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