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Handling File Uploads with Multer in Node.js: Unexpected 'File too large' scenarios

👀 Views: 50 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-10
node.js express multer JavaScript

I need help solving I've looked through the documentation and I'm still confused about I'm working on a project and hit a roadblock... I'm using Node.js v18.0.0 with Express and the Multer middleware for handling file uploads. I've configured Multer to limit file size to 1MB, but I keep working with a 'File too large' behavior even when my uploads are within the limit. Below is the relevant code snippet: ```javascript const express = require('express'); const multer = require('multer'); const app = express(); const storage = multer.memoryStorage(); const upload = multer({ storage: storage, limits: { fileSize: 1024 * 1024 } // limit to 1MB }); 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 is running on port 3000'); }); ``` When I try to upload a file that is definitely under 1MB, I receive the following behavior: ``` behavior: File too large ``` I've double-checked that the incoming file is indeed smaller than the specified limit, and I've also tried setting the limit to a higher value temporarily, which didn't help. Additionally, I ensured that the request is being sent as `multipart/form-data`. I tested with different file types (images, text files) and various sizes below 1MB, yet the scenario continues. Is there something I'm missing in my configuration or usage of Multer? Any insights would be greatly appreciated! I'm working on a CLI tool that needs to handle this. Thanks in advance! For context: I'm using Javascript on Ubuntu 20.04.