express
Fast, unopinionated, minimalist web framework for Node.js.
This project has a Code of Conduct.
Table of contents
import express from 'express'
const app = express()
app.get('/', (req, res) => {
res.send('Hello World')
})
app.listen(3000)Installation
This is a Node.js module available through the npm registry.
Before installing, download and install Node.js. Node.js 18 or higher is required.
If this is a brand new project, make sure to create a package.json first with the npm init command.
Installation is done using the npm install command:
Follow our installing guide for more information.
Features
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
Docs & Community
GitHub Organization for Official Middleware & Modules
Github Discussions for discussion on the development and usage of Express
PROTIP Be sure to read the migration guide to v5
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:
Create the app:
Install dependencies:
Start the server:
View the website at: http://localhost:3000
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making it a great solution for single page applications, websites, 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 @ladjs/consolidate, you can quickly craft your perfect framework.
Examples
To view the examples, clone the Express repository:
Then install the dependencies:
Then run whichever example you want:
Contributing
The Express.js project welcomes all constructive contributions. Contributions take many forms, from code for bug fixes and enhancements, to additions and fixes to documentation, additional tests, triaging incoming pull requests and issues, and more!
See the Contributing Guide for more technical details on contributing.
Security Issues
If you discover a security vulnerability in Express, please see Security Policies and Procedures.
Running Tests
To run the test suite, first install the dependencies:
Then run npm test:
People
The original author of Express is TJ Holowaychuk
TC (Technical Committee)
UlisesGascon - Ulises Gascón (he/him)
jonchurch - Jon Church
wesleytodd - Wes Todd
LinusU - Linus Unnebäck
blakeembrey - Blake Embrey
sheplu - Jean Burellier
crandmck - Rand McKinney
ctcpip - Chris de Almeida
TC emeriti members
TC emeriti members
dougwilson - Douglas Wilson
hacksparrow - Hage Yaapa
jonathanong - jongleberry
niftylettuce - niftylettuce
troygoode - Troy Goode
Triagers
aravindvnair99 - Aravind Nair
bjohansebas - Sebastian Beltran
carpasse - Carlos Serrano
CBID2 - Christine Belzie
dpopp07 - Dustin Popp
UlisesGascon - Ulises Gascón (he/him)
3imed-jaberi - Imed Jaberi
IamLizu - S M Mahmudul Hasan (he/him)
Phillip9587 - Phillip Barta
Sushmeet - Sushmeet Sunger
rxmarbles Rick Markins (He/him)
Triagers emeriti members
Emeritus Triagers
AuggieH - Auggie Hudak
G-Rath - Gareth Jones
MohammadXroid - Mohammad Ayashi
NawafSwe - Nawaf Alsharqi
NotMoni - Moni
VigneshMurugan - Vignesh Murugan
davidmashe - David Ashe
digitaIfabric - David
e-l-i-s-e - Elise Bonner
fed135 - Frederic Charette
firmanJS - Firman Abdul Hakim
getspooky - Yasser Ameur
ghinks - Glenn
ghousemohamed - Ghouse Mohamed
gireeshpunathil - Gireesh Punathil
jake32321 - Jake Reed
jonchurch - Jon Church
lekanikotun - Troy Goode
marsonya - Lekan Ikotun
mastermatt - Matt R. Wilson
maxakuru - Max Edell
mlrawlings - Michael Rawlings
rodion-arr - Rodion Abdurakhimov
sheplu - Jean Burellier
tarunyadav1 - Tarun yadav
tunniclm - Mike Tunnicliffe
enyoghasim - David Enyoghasim
0ss - Salah
import-brain - Eric Cheng (he/him)
dakshkhetan - Daksh Khetan (he/him)
lucasraziel - Lucas Soares Do Rego
mertcanaltin - Mert Can Altin
License
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