Handling large file uploads with Node.js: Stream vs Buffering issues in Express 4.17
I've been struggling with this for a few days now and could really use some help. This might be a silly question, but I am currently working with performance optimization while handling large file uploads in my Node.js application using Express 4.17... I'm trying to upload files up to 100MB, but I am running into memory issues and timeouts. I implemented a basic endpoint that uses `multer` for handling file uploads, but when the file size exceeds a certain threshold, I often see errors like `behavior: ENOBUFS: no buffer space available`. My current code looks like this: ```javascript const express = require('express'); const multer = require('multer'); const app = express(); const upload = multer({ dest: 'uploads/' }); app.post('/upload', upload.single('file'), (req, res) => { if (!req.file) { return res.status(400).send('No file uploaded.'); } res.send('File uploaded successfully.'); }); app.listen(3000, () => { console.log('Server listening on port 3000'); }); ``` I tried increasing the server's memory limits using `NODE_OPTIONS='--max-old-space-size=4096'`, but that didn’t seem to resolve the question. I also considered switching to streaming, but I’m unsure how to implement that properly with `multer`. I came across the option to use `busboy` for handling streams, but I’m not familiar with the best practices for using streams in this context. Could someone provide guidance on how to either optimize the current setup or implement a streaming approach to handle large file uploads more efficiently? Any help or code examples would be greatly appreciated! I'm working on a CLI tool that needs to handle this. Am I missing something obvious? My development environment is Ubuntu.