CodexBloom - Programming Q&A Platform

Unexpected 404 scenarios with Node.js Express Route Handling for Dynamic Nested Routes

๐Ÿ‘€ Views: 81 ๐Ÿ’ฌ Answers: 1 ๐Ÿ“… Created: 2025-06-10
node.js express routing JavaScript

I need help solving This might be a silly question, but I'm working on a Node.js application using Express (version 4.17.1) and I've set up dynamic nested routes to manage resources efficiently..... However, I'm working with a 404 behavior when trying to access the nested route that should match the pattern `/users/:userId/posts/:postId`. Hereโ€™s my route setup: ```javascript const express = require('express'); const app = express(); app.get('/users/:userId/posts/:postId', (req, res) => { const { userId, postId } = req.params; res.send(`User ID: ${userId}, Post ID: ${postId}`); }); app.listen(3000, () => { console.log('Server is running on port 3000'); }); ``` When I try to access `http://localhost:3000/users/123/posts/456`, I get a 404 behavior, even though I have defined the route correctly. Iโ€™ve double-checked for typos in the route definition and the URL I am calling, and they seem to match perfectly. Additionally, Iโ€™ve tested it with other simple routes, and those work fine. I also tried changing the order of route definitions, but that didnโ€™t help. Other routes defined before this one are functioning correctly. Does anyone have an idea of what could be causing this 404 behavior in this specific case? Any suggestions on what I might be missing or misconfigured? This is part of a larger CLI tool I'm building. How would you solve this? Could this be a known issue?