├── .gitignore ├── Makefile ├── index.html ├── README.md ├── package.json ├── client.jsx └── server.js /.gitignore: -------------------------------------------------------------------------------- 1 | /node_modules 2 | /dist -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | start: 2 | npm run start 3 | build: 4 | npm run build 5 | test: 6 | npm run test 7 | clean: 8 | npm run clean 9 | 10 | .PHONY: build test clean -------------------------------------------------------------------------------- /index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | React use Rust demo 7 | 8 | 9 |
10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # React `use rust` 2 | 3 | Use Rust in your React! 4 | 5 | image 6 | 7 | 8 | ## TODO 9 | 10 | - [ ] Package Rust for npm 11 | - [ ] Add more folders and files with code that does nothing to look more professional 12 | - [ ] Create `create-react-use-rust` package cuz this ecosystem is broken 13 | - [ ] Add typescript support 14 | - [ ] Make somebody else figure out publishing this to npm (I am still not over it) 15 | - [ ] Remove typescript support 16 | - [ ] Tell windows ppl to just use WSL 17 | - [ ] esbuild is not cursed enough, gotta switch to something else 18 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "react-use-rust", 3 | "version": "1.0.0", 4 | "description": "Use Rust in your server side react components", 5 | "main": "this field is so weird", 6 | "scripts": { 7 | "start": "npm run build && node server.js", 8 | "build": "node build.js", 9 | "clean": "rm -r dist", 10 | "test": "true" 11 | }, 12 | "repository": { 13 | "type": "git", 14 | "url": "git+https://github.com/elnardu/react-use-rust.git" 15 | }, 16 | "keywords": [ 17 | "C", 18 | "Rust", 19 | "React", 20 | "Typescript", 21 | "Bun", 22 | "Zig" 23 | ], 24 | "author": "me", 25 | "license": "WTFPL", 26 | "bugs": { 27 | "url": "https://github.com/elnardu/react-use-rust/issues" 28 | }, 29 | "homepage": "https://github.com/elnardu/react-use-rust#readme", 30 | "devDependencies": { 31 | "esbuild": "0.19.5", 32 | "react": "^18.2.0", 33 | "react-dom": "^18.2.0" 34 | }, 35 | "dependencies": { 36 | "express": "^4.18.2" 37 | } 38 | } 39 | -------------------------------------------------------------------------------- /client.jsx: -------------------------------------------------------------------------------- 1 | import React, { useState } from "react"; 2 | import ReactDOM from "react-dom"; 3 | 4 | // I haven't used any of this bs in a year, hopefully it still the same 5 | 6 | /// Look mum! I am so cool, I put strings into a different file 7 | function css(strings) { 8 | let style = document.getElementById("css-in-js-style-thing"); 9 | if (!style) { 10 | style = document.createElement("style"); 11 | style.id = "css-in-js-style-thing"; 12 | document.head.appendChild(style); 13 | } 14 | 15 | const randomClassId = Math.random().toString(36).slice(2); 16 | style.textContent += ` 17 | .${randomClassId} { 18 | ${strings[0]} 19 | }`; 20 | return randomClassId; 21 | } 22 | 23 | async function runRust(code) { 24 | const res = await fetch("/rpc/rce", { 25 | method: "POST", 26 | body: JSON.stringify({ code: code }), 27 | headers: { 28 | "Content-Type": "application/json", 29 | }, 30 | }); 31 | return await res.json(); 32 | } 33 | 34 | const appStyles = css` 35 | margin: 3rem auto; 36 | max-width: 600px; 37 | padding: 0 1rem; 38 | `; 39 | 40 | const App = () => ( 41 |
42 |

React use Rust demo

43 | 44 |
45 | ); 46 | 47 | const Demo = () => { 48 | const [output, setOutput] = useState(null); 49 | const rustHelloWorld = async () => { 50 | "use rust"; 51 | fn main() { 52 | println!("Hello, world from Rust!"); 53 | println!("Also hi HN!"); 54 | } 55 | }; 56 | const onClick = async () => { 57 | const out = await rustHelloWorld(); 58 | setOutput(out.stdout); 59 | }; 60 | 61 | return ( 62 |
63 | 64 |

Output from Rust:

65 | 
{ output }
66 |
67 | ); 68 | }; 69 | 70 | ReactDOM.render(, document.getElementById("app")); 71 | -------------------------------------------------------------------------------- /server.js: -------------------------------------------------------------------------------- 1 | const express = require("express"); 2 | const childProcess = require("child_process"); 3 | const fs = require("fs"); 4 | const fsPromises = require("fs/promises"); 5 | const path = require("path"); 6 | const os = require("os"); 7 | 8 | const app = express(); 9 | const port = process.env.PORT ?? 3000; 10 | 11 | app.use(express.static("dist")); 12 | app.use(express.json()); 13 | 14 | function spawn(command, args) { 15 | return new Promise((resolve) => { 16 | // damn this api is shit 17 | const p = childProcess.spawn(command, args); 18 | const stdouts = []; 19 | const stderrs = []; 20 | 21 | p.stdout.on("data", (data) => { 22 | stdouts.push(data); 23 | }); 24 | 25 | p.stderr.on("data", (data) => { 26 | stderrs.push(data); 27 | }); 28 | 29 | p.on("close", (code) => { 30 | resolve({ 31 | code: code, 32 | stdout: Buffer.concat(stdouts).toString(), 33 | stderr: Buffer.concat(stderrs).toString(), 34 | }); 35 | }); 36 | }); 37 | } 38 | 39 | function maketmp() { 40 | return new Promise((resolve, reject) => { 41 | fs.mkdtemp(path.join(os.tmpdir(), "use-rust"), (err, dir) => { 42 | if (err !== null) reject(err); 43 | else resolve(dir); 44 | }); 45 | }); 46 | } 47 | 48 | async function runRust(code) { 49 | const dir = await maketmp(); 50 | const rustFile = path.join(dir, "main.rs"); 51 | const outFile = path.join(dir, "main"); 52 | await fsPromises.writeFile(rustFile, decodeURIComponent(code)); 53 | await spawn("rustc", [rustFile, "-o", outFile]); 54 | const out = await spawn(outFile, []); 55 | return out; 56 | } 57 | 58 | app.post("/rpc/rce", async (req, res) => { 59 | const { code } = req.body; 60 | const out = await runRust(code); 61 | res.json(out); 62 | }); 63 | 64 | async function checkRust() { 65 | try { 66 | const out = await spawn("rustc", ["--version"]); 67 | if (out.code !== 0) { 68 | throw new Error("Rust is not installed"); 69 | } 70 | } catch (e) { 71 | console.error("Please install rust"); 72 | console.error(" curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh"); 73 | console.error("Bye!"); 74 | process.exit(1); 75 | } 76 | } 77 | 78 | // Can somebody tell me if top level async is finally ok to use? 79 | (async () => { 80 | await checkRust(); 81 | 82 | app.listen(port, () => { 83 | console.log(`Listening on port ${port}`); 84 | }); 85 | })(); 86 | --------------------------------------------------------------------------------