express

Fast, unopinionated, minimalist web framework

Fast, unopinionated, minimalist web framework for node.

var express = require('express')
var app = express()
 
app.get('/', function (reqres) {
  res.send('Hello World')
})
 
app.listen(3000)
$ npm install express
  • Robust routing
  • Focus on high performance
  • Super-high test coverage
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Executable for generating applications quickly

PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.

The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:

Install the executable. The executable's major version will match Express's:

$ npm install -g express-generator@4

Create the app:

$ express /tmp/foo && cd /tmp/foo

Install dependencies:

$ npm install

Start the server:

$ npm start

The Express philosophy is to provide small, robust tooling for HTTP servers, making it a great solution for single page applications, web sites, hybrids, or public HTTP APIs.

Express does not force you to use any specific ORM or template engine. With support for over 14 template engines via Consolidate.js, you can quickly craft your perfect framework.

To view the examples, clone the Express repo and install the dependancies:

$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install

Then run whichever example you want:

$ node examples/content-negotiation

To run the test suite, first install the dependancies, then run npm test:

$ npm install
$ npm test

The original author of Express is TJ Holowaychuk

The current lead maintainer is Douglas Christopher Wilson

List of all contributors

MIT