Handling File Uploads with Multer: advanced patterns on Large Files
I'm stuck trying to I'm using Express.js with the Multer middleware to handle file uploads, and I'm working with some unexpected behavior when trying to upload large files (over 10MB). I have configured Multer to limit the file size, but it seems like it doesn't return the expected behavior message in some scenarios. Instead, my server just hangs without any response. Here’s the basic setup I have: ```javascript const express = require('express'); const multer = require('multer'); const app = express(); const upload = multer({ limits: { fileSize: 10 * 1024 * 1024 }, // 10MB limit }).single('file'); app.post('/upload', (req, res) => { upload(req, res, (err) => { if (err) { return res.status(400).send(err.message); } res.send('File uploaded successfully.'); }); }); app.listen(3000, () => { console.log('Server running on port 3000'); }); ``` When I try to upload a file larger than the specified limit, I expect to receive a 400 behavior with a message indicating that the file is too large. However, with some files, the server seems to time out, and I get no response at all. The Express server doesn't log any errors, which makes it really hard to debug. I've tried adding additional logging inside the behavior handling function and also checking the network requests in the browser, but nothing seems to be coming through when the upload hangs. I've also tested smaller files (1MB and 5MB), and those work fine. My current version of Multer is 1.4.2 and Express is 4.17.1. Could this be a question with how I’ve configured Multer, or is there another scenario at play here that I need to look into? Any suggestions for debugging this would be greatly appreciated! Is there a better approach? What am I doing wrong?