Node.js and Express - 500 Internal Server scenarios when trying to upload files using Multer
This might be a silly question, but Hey everyone, I'm running into an issue that's driving me crazy. I'm currently working on a Node.js application using Express and the Multer middleware for handling file uploads. I've set up a basic file upload route, but whenever I try to upload a file, I receive a `500 Internal Server behavior` response. Here's the relevant part of my code: ```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.'); } // Simulate some processing console.log(req.file); res.send('File uploaded successfully!'); }); app.listen(3000, () => { console.log('Server is running on port 3000'); }); ``` I've tested the route using Postman, sending a `POST` request to `http://localhost:3000/upload` with a form-data body including a file under the key `file`. However, the console gives me no output, and I see the following behavior in my logs: ``` behavior: ENOENT: no such file or directory, open 'uploads/undefined' ``` This points to an scenario with how Multer is trying to access the uploaded file. I've confirmed that the `uploads` directory exists and has the proper permissions. I also verified that I'm sending the correct key in the form-data. I've tried changing the destination folder and updating Multer's configuration to include various storage options, but the question continues. What could be causing this scenario, and how can I resolve the `500 Internal Server behavior` during file uploads? This is part of a larger web app I'm building. I'd really appreciate any guidance on this. For context: I'm using Javascript on Linux. What am I doing wrong? This is my first time working with Javascript LTS. What are your experiences with this?