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Struggling with Express Router Middleware Not Being Called on Certain Routes

👀 Views: 77 💬 Answers: 1 📅 Created: 2025-09-06
node.js express middleware javascript

Can someone help me understand I'm testing a new approach and I've been struggling with this for a few days now and could really use some help. Hey everyone, I'm running into an issue that's driving me crazy. I've looked through the documentation and I'm still confused about I've looked through the documentation and I'm still confused about I'm relatively new to this, so bear with me. While developing a RESTful API with Express.js (version 4.17.1), I've hit a snag where my middleware function isn't being triggered for specific routes. The middleware is supposed to log incoming requests and check for an authentication token. When I access some routes, the middleware works as expected, but for others, it simply skips over it. Here's my route setup: ```javascript const express = require('express'); const app = express(); const authenticate = (req, res, next) => { console.log('Authenticating...'); const token = req.headers['authorization']; if (token) { next(); } else { res.status(403).send('Forbidden'); } }; app.use(authenticate); app.get('/public', (req, res) => { res.send('This is a public route!'); }); app.get('/private', (req, res) => { res.send('This is a private route!'); }); app.listen(3000, () => { console.log('Server is running on port 3000'); }); ``` When I try to access the `/public` route, it works fine, but the middleware isn't called when I access the `/private` route unless I include a token. I’ve confirmed that both routes are declared after the middleware. I also tried adding `app.use(authenticate);` before defining the routes, but there was no difference. What could be causing my middleware not to trigger for the `/private` route? I’d appreciate any insights or suggestions on how to troubleshoot this issue. Thanks! My development environment is Windows. Any ideas what could be causing this? For context: I'm using Javascript on Windows. What am I doing wrong? My development environment is Windows. Am I missing something obvious? Any suggestions would be helpful. I'm working with Javascript in a Docker container on Windows 10. Thanks for your help in advance! This issue appeared after updating to Javascript LTS. Any examples would be super helpful.