boxcars.js is a JavaScript port of the Rocket League replay parser library boxcars by nickbabcok. It uses WebAssembly to compile the underlying Rust implementation to a wasm module for JavaScript. It provides typing for all object, even the parsed replay.

• ✨ Fully Typed: Full TypeScript support built in
• 🛠️ Intuitive API: Designed for developer productivity and ease of use.
• ⚡ Lightweight and Fast: Zero Dependencies & Rust execution speed

Install the latest version using:

npm install boxcars.js

yarn add boxcars.js

pnpm add boxcars.js

bun add boxcars.js

Below is an example for parsing a rocket replay file:

import {BoxcarsParser, CrcCheck, NetworkParse} from "boxcars.js";
import * as fs from "node:fs";

const parser = new BoxcarsParser(fs.readFileSync("./test.replay"))
    .setCrcCheck(CrcCheck.ALWAYS)
    .setNetworkParse(NetworkParse.ALWAYS)
console.log(parser.parse())

For parse options and typing of the parsed replay see boxcars

Currently boxcars.js only targets node.js. A browser build is planned for the future. Let me know if there is demand for this.

wasm-pack build -t nodejs

wasm-pack pack