A GraphQL server library implemented in Rust

Async-graphql is a high-performance server-side library that supports all GraphQL specifications.

• Feature Comparison
• Book
• 中文文档
• Docs
• GitHub repository
• Cargo package
• Minimum supported Rust version: 1.46 or later

Safety

This crate uses #![forbid(unsafe_code)] to ensure everything is implemented in 100% Safe Rust.

Features

• Fully supports async/await
• Type safety
• Rustfmt friendly (Procedural Macro)
• Custom scalars
• Minimal overhead
• Easy integration (actix_web, tide, warp, rocket ...)
• Upload files (Multipart request)
• Subscriptions (WebSocket transport)
• Custom extensions
• Apollo Tracing extension
• Limit query complexity/depth
• Error Extensions
• Apollo Federation
• Batch Queries
• Apollo Persisted Queries

Examples

All examples are in the sub-repository, located in the examples directory.

Run an example:

git submodule update # update the examples repo
cd examples && cargo run --bin [name]

Benchmark

Ensure that there is no CPU-heavy process in background!

cd benchmark

#measure all with system malloc
cargo bench

#measure only chat run
cargo bench -- "chat run"

#measure all with jemalloc
cargo bench --features jemalloc

#measure only simple run with jemalloc
cargo bench --features jemalloc -- "simple run"

Now HTML report is available at benchmark/target/criterion/report

Read more here: https://bheisler.github.io/criterion.rs/book/criterion_rs.html

Integrations

• Actix-web async-graphql-actix-web
• Warp async-graphql-warp
• Tide async-graphql-tide
• Rocket async-graphql-rocket

License

Licensed under either of

• Apache License, Version 2.0, (./LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (./LICENSE-MIT or http://opensource.org/licenses/MIT) at your option.

References

• GraphQL
• GraphQL Multipart Request
• GraphQL Cursor Connections Specification
• GraphQL over WebSocket Protocol
• Apollo Tracing
• Apollo Federation

Contribute

Welcome to contribute !