eternal-flame-ad/juniper

Juniper lets developers build GraphQL servers in Rust. GraphQL is a query language that lets front-end apps request exactly the data they need from a back-end, no more, no less, which is especially useful for mobile and web applications. By using this library, a developer gets a server that is type-safe (meaning many bugs get caught at compile time) and fast, since Rust is a high-performance language. At a high level, the developer writes Rust code that defines what data is available and how to fetch it, and the library handles translating incoming GraphQL queries into the right function calls. It supports the full GraphQL query language spec, including interfaces, unions, and schema introspection. Notably, it doesn't include a web server itself, instead, it provides integrations with several popular Rust web frameworks (Actix, Hyper, Rocket, Warp, and Axum) so you can plug it into an existing server. It also ships with built-in debugging tools like GraphiQL and GraphQL Playground, which give developers a visual interface for testing queries during development. This project is aimed at Rust developers who need to add a GraphQL API to their application. For example, a startup building a Rust back-end might use it to expose an API that a React or iOS front-end can query for user profiles, orders, or any other domain data. It also has automatic integrations with common Rust crates for things like UUIDs, URLs, and timestamps, so those data types work seamlessly in a schema without extra plumbing. One thing worth noting is that it follows a "code-first" approach, you define your schema by writing Rust code rather than writing a separate schema file first. The project hasn't reached version 1.0 yet, so some API changes may still occur between updates.