Deploying an express.js package

Question

I am creating a web application using express.js. I have been following a course by Angela Wu, and one of the chapters involves a templating tool called 'Express' which is built on node.js. Following is a very simple example for a file named 'node.js':

import express from "express";

const app = express();
const port = 3000;

app.get("/", (req, res) => {
  res.send("<h1>Hello World!</h1>");
});

app.listen(port, () => {
  console.log(`Listening on port $(port)`)
});

To run this, I open a terminal window inside of Visual Studio Code, and execute the command

node index.js

This will then use the 'node' library to create an http listener on 'localhost/3000'.

Now here is the question: How can I deploy this simple application to a remote host?

Answer 1 · 2025-11-28 05:11:34Z

you can use various approach. This is the most common production setup.

Step 1: SSH into your server

ssh user@your_server_ip

Step 2: Install Node & Git

sudo apt update
sudo apt install -y nodejs npm git

Step 3: Clone your project

git clone https://github.com/your/repo.git
cd repo
npm install

Step 4: Install PM2 (process manager)

PM2 keeps your Node app running in the background:

sudo npm install -g pm2
pm2 start server.js --name myapp
pm2 save
pm2 startup

Step 5: Configure Nginx as reverse proxy

Install Nginx:

sudo apt install nginx


Create a config file:

sudo nano /etc/nginx/sites-available/myapp


Add:

server {
    listen 80;
    server_name your_domain_or_ip;

    location / {
        proxy_pass http://localhost:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}


Enable the site:

sudo ln -s /etc/nginx/sites-available/myapp /etc/nginx/sites-enabled/
sudo systemctl restart nginx

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Deploying an express.js package

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Deploying an express.js package

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