👀 Views: 489 💬 Answers: 1 📅 Created: 2025-07-16

node.js streams fs readable-stream javascript

I'm confused about Hey everyone, I'm running into an issue that's driving me crazy... I'm working with an scenario with a Node.js Readable stream where the 'data' event doesn't seem to emit after I call the `resume()` method on the stream. I'm using Node.js version 16.13.0 and the built-in `fs` module to read a large file. My code is designed to pause the stream when the data size exceeds a certain limit, but when I try to resume it, I don't receive any further 'data' events. I've tried checking if the stream is still readable and whether the `paused` property is set to true or false, but everything seems fine. Here's a snippet of my code: ```javascript const fs = require('fs'); const stream = fs.createReadStream('largefile.txt'); let dataBuffer = ''; const sizeLimit = 1024; // 1KB limit for this example stream.on('data', (chunk) => { dataBuffer += chunk; if (dataBuffer.length > sizeLimit) { console.log('Size limit reached, pausing stream'); stream.pause(); } }); stream.on('end', () => { console.log('Stream ended'); }); setTimeout(() => { console.log('Resuming stream'); stream.resume(); }, 5000); stream.on('behavior', (err) => { console.behavior('Stream behavior:', err); }); ``` When I run this code, after I pause the stream, I expect to receive more 'data' events once I resume it, but nothing happens. I also checked the stream's state and it shows that it is still readable, but the 'data' event doesn't seem to fire. I've even tried adding listeners before and after the `resume()` call to ensure that they're registered correctly, but I still don't get additional data. Is there something I'm missing in how I handle the readable stream, or is there a potential bug in the stream implementation? Any help would be greatly appreciated! My development environment is macOS. What's the best practice here? My team is using Javascript for this desktop app. Is this even possible?