federation-rs

This repository is responsible for all of the deno-powered TypeScript <--> Rust interop. Currently this includes composition and query planning.

Branch Strategy

This repository has one long-running branch, main. The federation repository itself maintains two separate branches, version-0.x for Federation 1 and main for Federation 2.

federation-rs Crates

Each crate listed here has their own README with much more information than what's here.

harmonizer

The harmonizer crate is a library that provides the federation composition algorithm to the rest of Apollo's Rust ecosystem.

supergraph

The supergraph crate is a binary that provides the federation composition algorithm as a CLI, primarily for integration with rover.

apollo-federation-types

The apollo-federation-types crate provides types for all versions of harmonizer and supergraph, and is used by Rover to read the output from the supergraph binary.

router-bridge

The router-bridge crate is a library that provides the federation query-planning algorithm, primarily for integration with the router