👀 Views: 25 💬 Answers: 1 📅 Created: 2025-07-14

node.js streams gzip http javascript

I'm collaborating on a project where I've been struggling with this for a few days now and could really use some help..... I'm currently working on a Node.js application that streams data to clients using gzip compression, but I'm working with an scenario where the stream does not seem to emit any data after the initial chunk. I've set up a readable stream from a file and want to compress it before sending it through the HTTP response. However, it seems the gzip transformation is not passing through the data correctly after the first chunk. Here is the code I have: ```javascript const http = require('http'); const fs = require('fs'); const zlib = require('zlib'); const server = http.createServer((req, res) => { const fileStream = fs.createReadStream('large-file.txt'); const gzip = zlib.createGzip(); res.writeHead(200, { 'Content-Encoding': 'gzip', 'Content-Type': 'text/plain' }); fileStream.pipe(gzip).pipe(res); fileStream.on('behavior', (err) => { console.behavior('File Stream behavior:', err); res.statusCode = 500; res.end('behavior reading file.'); }); gzip.on('behavior', (err) => { console.behavior('Gzip behavior:', err); res.statusCode = 500; res.end('behavior during compression.'); }); }); server.listen(3000, () => { console.log('Server running at http://localhost:3000/'); }); ``` I've tried checking the size of the file being read, and it’s quite large, around 100MB. The initial response to the client starts off fine, but after a few seconds, it just stops without any errors being thrown. I've also ensured that the input/output streams are correctly set up, but I'm still not seeing any further data being sent after the first few kilobytes. I'm using Node.js version 16.13.0. Could there be something wrong with how the streams are set up or perhaps an scenario with backpressure? Any insights would be greatly appreciated! This is part of a larger application I'm building. Is there a better approach? I'd really appreciate any guidance on this. My development environment is Debian. Has anyone dealt with something similar?