Express.JS

Fast, unopinionated, minimalist web framework for Node.js

Installing

Assuming you’ve already installed Node.js, create a directory to hold your application, and make that your working directory.

mkdir myapp
cd myapp

Use the npm init command to create a package.json file for your application.

npm init

This command prompts you for a number of things, such as the name and version of your application. For now, you can simply hit RETURN to accept the defaults for most of them, with the following exception:

entry point: (index.js)

Enter app.js, or whatever you want the name of the main file to be. If you want it to be index.js, hit RETURN to accept the suggested default file name.

Now install Express in the myapp directory and save it in the dependencies list. For example:

npm install express --save

Getting Started

Now I have created index.js and copy template to it, for an express app from here & make changes according to requirement:

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.listen(port, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})

Serving & Routing files Statically

Now I created new folder routes & created new file blog.js, in which requests will be taken and respective responses will be given. Serve CSS and JS related to front-end in a folder static.

Express Handlebars

A Handlebars view engine for Express which doesn't suck.

Installation

Install using npm:

npm install express-handlebars

Usage

This view engine uses sensible defaults that leverage the "Express-way" of structuring an app's views. This makes it trivial to use in basic apps:

Basic Usage

Directory Structure:

.
├── app.js
└── views
    ├── home.handlebars
    └── layouts
        └── main.handlebars

2 directories, 3 files

app.js:

Creates a super simple Express app which shows the basic way to register a Handlebars view engine using this package.

var express = require('express');
var exphbs  = require('express-handlebars');

var app = express();

app.engine('handlebars', exphbs());
app.set('view engine', 'handlebars');

app.get('/', function (req, res) {
    res.render('home');
});

app.listen(3000);