Created
February 18, 2023 11:00
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A script to reproduce streaming response bug in bun that's affecting express.js.
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| #!/bin/bash | |
| TIMESTAMP=$(date +%s) | |
| mkdir "bun-express-streaming-response-bug-$TIMESTAMP/" | |
| cd "bun-express-streaming-response-bug-$TIMESTAMP/" | |
| cat <<EOT > package.json | |
| { "dependencies": { "express": "^4.18.2" }, "type": "module" } | |
| EOT | |
| cat <<EOT > index.js | |
| import express from "express"; | |
| const port = process.argv[2]; | |
| const app = express(); | |
| async function sleep(ms) { | |
| return new Promise((resolve) => setTimeout(resolve, ms)); | |
| } | |
| app.get("/", async (req, res) => { | |
| res.set({ "transfer-encoding": "chunked" }); | |
| res.write("1\n"); | |
| await sleep(300); | |
| res.write("2\n"); | |
| await sleep(300); | |
| res.write("3\n"); | |
| await sleep(300); | |
| res.write("4\n"); | |
| await sleep(300); | |
| res.write("5\n"); | |
| await sleep(300); | |
| res.end(); | |
| }); | |
| app.listen(port, () => { | |
| console.log("Example app listening on port " + port); | |
| }); | |
| EOT | |
| bun install | |
| bun run index.js 3001 & node index.js 3002 |
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