Chris Mendez in NodeJS, Javascript, For Developers

Creating an ExpressJS 4.0 app on a Mac

Step 1

Install Node from

Step 2

This installs ExpressJS command-line tools.

sudo npm install -g express  

Step 3

This install tools to help you build an ExpressJS web app quickly.

sudo npm install -g express-generator  

Step 4

Create your first ExpressJS app on the desktop.

cd ~/Desktop  
express [name of your app]  

Step 5

Change directory into your new app

cd ./name/of/your/new/app  

Step 6

Install all the necessary packages to formally build an ExpressJS app.

sudo npm install  

Step 7

Start your web sever

sudo npm start  

Step 8

Confirm the web server is working on your browser


Step 9

Add a listener to the bottom of app.js

app.locals.pretty = true;  
// all environments
app.set('port', process.env.PORT || 8080);

/* ** ** ** ** ** ** **
* App Server Listening
* ** ** ** ** ** ** **/
app.listen(app.get('port'), app.get('ipaddress'), function() {  
      console.log("Node app is running at localhost:" + app.get('port'))

Step 10

I generally like to use nodemon server for development. Here's how to install it for development purposes.

npm install nodemon --save-dev