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Fast, unopinionated, minimalist web framework for node.
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Readme.md

express logo

Fast, unopinionated, minimalist web framework for node.

Build Status Gittip

var express = require('express');
var app = express();

app.get('/', function(req, res){
  res.send('Hello World');
});

app.listen(3000);

Note that Express v4 release candidates have been released. Please try it out, but not in production, and report any issues you may find here or to the appropriate repositories. Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.

Installation

$ npm install express

Quick Start

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@3

Create the app:

$ express /tmp/foo && cd /tmp/foo

Install dependencies:

$ npm install

Start the server:

$ npm start

Features

  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Environment based configuration
  • Executable for generating applications quickly
  • High test coverage

Philosophy

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.

More Information

Viewing Examples

Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:

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

Then run whichever tests you want:

$ node examples/content-negotiation

You can also view live examples here:

Running Tests

To run the test suite, first invoke the following command within the repo, installing the development dependencies:

$ npm install

Then run the tests:

$ make test

Contributors

https://github.com/visionmedia/express/graphs/contributors

License

(The MIT License)

Copyright (c) 2009-2012 TJ Holowaychuk <tj@vision-media.ca>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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