1 | [![Express Logo](https://i.cloudup.com/zfY6lL7eFa-3000x3000.png)](http://expressjs.com/)
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2 |
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3 | Fast, unopinionated, minimalist web framework for [node](http://nodejs.org).
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4 |
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5 | [![NPM Version][npm-image]][npm-url]
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6 | [![NPM Downloads][downloads-image]][downloads-url]
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7 | [![Linux Build][travis-image]][travis-url]
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8 | [![Windows Build][appveyor-image]][appveyor-url]
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9 | [![Test Coverage][coveralls-image]][coveralls-url]
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10 |
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11 | ```js
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12 | var express = require('express')
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13 | var app = express()
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14 |
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15 | app.get('/', function (req, res) {
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16 | res.send('Hello World')
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17 | })
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18 |
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19 | app.listen(3000)
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20 | ```
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21 |
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22 | ## Installation
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23 |
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24 | ```bash
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25 | $ npm install express
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26 | ```
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27 |
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28 | ## Features
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29 |
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30 | * Robust routing
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31 | * Focus on high performance
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32 | * Super-high test coverage
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33 | * HTTP helpers (redirection, caching, etc)
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34 | * View system supporting 14+ template engines
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35 | * Content negotiation
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36 | * Executable for generating applications quickly
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37 |
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38 | ## Docs & Community
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39 |
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40 | * [Website and Documentation](http://expressjs.com/) - [[website repo](https://github.com/expressjs/expressjs.com)]
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41 | * [#express](https://webchat.freenode.net/?channels=express) on freenode IRC
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42 | * [GitHub Organization](https://github.com/expressjs) for Official Middleware & Modules
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43 | * Visit the [Wiki](https://github.com/expressjs/express/wiki)
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44 | * [Google Group](https://groups.google.com/group/express-js) for discussion
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45 | * [Gitter](https://gitter.im/expressjs/express) for support and discussion
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46 |
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47 | **PROTIP** Be sure to read [Migrating from 3.x to 4.x](https://github.com/expressjs/express/wiki/Migrating-from-3.x-to-4.x) as well as [New features in 4.x](https://github.com/expressjs/express/wiki/New-features-in-4.x).
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48 |
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49 | ### Security Issues
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50 |
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51 | If you discover a security vulnerability in Express, please see [Security Policies and Procedures](Security.md).
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52 |
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53 | ## Quick Start
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54 |
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55 | The quickest way to get started with express is to utilize the executable [`express(1)`](https://github.com/expressjs/generator) to generate an application as shown below:
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56 |
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57 | Install the executable. The executable's major version will match Express's:
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58 |
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59 | ```bash
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60 | $ npm install -g express-generator@4
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61 | ```
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62 |
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63 | Create the app:
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64 |
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65 | ```bash
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66 | $ express /tmp/foo && cd /tmp/foo
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67 | ```
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68 |
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69 | Install dependencies:
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70 |
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71 | ```bash
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72 | $ npm install
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73 | ```
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74 |
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75 | Start the server:
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76 |
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77 | ```bash
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78 | $ npm start
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79 | ```
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80 |
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81 | ## Philosophy
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82 |
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83 | The Express philosophy is to provide small, robust tooling for HTTP servers, making
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84 | it a great solution for single page applications, web sites, hybrids, or public
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85 | HTTP APIs.
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86 |
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87 | Express does not force you to use any specific ORM or template engine. With support for over
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88 | 14 template engines via [Consolidate.js](https://github.com/tj/consolidate.js),
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89 | you can quickly craft your perfect framework.
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90 |
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91 | ## Examples
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92 |
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93 | To view the examples, clone the Express repo and install the dependencies:
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94 |
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95 | ```bash
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96 | $ git clone git://github.com/expressjs/express.git --depth 1
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97 | $ cd express
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98 | $ npm install
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99 | ```
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100 |
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101 | Then run whichever example you want:
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102 |
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103 | ```bash
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104 | $ node examples/content-negotiation
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105 | ```
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106 |
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107 | ## Tests
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108 |
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109 | To run the test suite, first install the dependencies, then run `npm test`:
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110 |
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111 | ```bash
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112 | $ npm install
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113 | $ npm test
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114 | ```
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115 |
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116 | ## People
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117 |
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118 | The original author of Express is [TJ Holowaychuk](https://github.com/tj) [![TJ's Gratipay][gratipay-image-visionmedia]][gratipay-url-visionmedia]
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119 |
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120 | The current lead maintainer is [Douglas Christopher Wilson](https://github.com/dougwilson) [![Doug's Gratipay][gratipay-image-dougwilson]][gratipay-url-dougwilson]
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121 |
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122 | [List of all contributors](https://github.com/expressjs/express/graphs/contributors)
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123 |
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124 | ## License
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125 |
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126 | [MIT](LICENSE)
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127 |
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128 | [npm-image]: https://img.shields.io/npm/v/express.svg
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129 | [npm-url]: https://npmjs.org/package/express
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130 | [downloads-image]: https://img.shields.io/npm/dm/express.svg
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131 | [downloads-url]: https://npmjs.org/package/express
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132 | [travis-image]: https://img.shields.io/travis/expressjs/express/master.svg?label=linux
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133 | [travis-url]: https://travis-ci.org/expressjs/express
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134 | [appveyor-image]: https://img.shields.io/appveyor/ci/dougwilson/express/master.svg?label=windows
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135 | [appveyor-url]: https://ci.appveyor.com/project/dougwilson/express
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136 | [coveralls-image]: https://img.shields.io/coveralls/expressjs/express/master.svg
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137 | [coveralls-url]: https://coveralls.io/r/expressjs/express?branch=master
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138 | [gratipay-image-visionmedia]: https://img.shields.io/gratipay/visionmedia.svg
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139 | [gratipay-url-visionmedia]: https://gratipay.com/visionmedia/
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140 | [gratipay-image-dougwilson]: https://img.shields.io/gratipay/dougwilson.svg
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141 | [gratipay-url-dougwilson]: https://gratipay.com/dougwilson/
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