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Lesson 31 — Deploy to Railway Cheat Sheet

Full-Stack

In one line: Railway hosts your always-on Express server; MongoDB Atlas hosts the database — connect them with env vars and don't forget CORS.

6 Steps

1Create a free Atlas cluster

2Whitelist network access (0.0.0.0/0)

3Push repo to GitHub

4Import repo on railway.app

5Set MONGO_URI + JWT_SECRET

const cors = require('cors'); app.use(cors({ origin: 'https://your-app.vercel.app' }));

6Point frontend's API URL at the Railway URL