How To Install Express In Node Js

Fast, unopinionated, minimalist web framework for node.

                const                express                =                require                (                'limited'                )                const                app                =                express                (                )                app                .                become                (                '/'                ,                function                (                req                ,                res                )                {                res                .                transport                (                'Hello World'                )                }                )                app                .                listen                (                3000                )              

Installation

This is a Node.js module bachelor through the npm registry.

Before installing, download and install Node.js. Node.js 0.10 or college is required.

If this is a brand new project, brand sure to create a package.json starting time with the npm init control.

Installation is washed using the npm install control:

Follow our installing guide for more information.

Features

• Robust routing
• Focus on high functioning
• Super-loftier test coverage
• HTTP helpers (redirection, caching, etc)
• View arrangement supporting 14+ template engines
• Content negotiation
• Executable for generating applications quickly

Docs & Customs

• Website and Documentation - [website repo]
• #express on freenode IRC
• GitHub Organization for Official Middleware & Modules
• Visit the Wiki
• Google Group for discussion
• Gitter for back up and discussion

PROTIP Be certain to read Migrating from 3.x to 4.x besides as New features in four.x.

Security Issues

If you lot detect a security vulnerability in Limited, please see Security Policies and Procedures.

Quick Start

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

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

$ npm install -m express-generator@iv

Create the app:

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

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 strength you to employ any specific ORM or template engine. With support for over 14 template engines via Consolidate.js, you can quickly craft your perfect framework.

Examples

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

$ git clone git://github.com/expressjs/express.git --depth i $                cd                limited $ npm install

Then run whichever example y'all desire:

$ node examples/content-negotiation

Tests

To run the test suite, first install the dependencies, then run npm examination:

Contributing

Contributing Guide

People

The original writer of Express is TJ Holowaychuk

The current lead maintainer is Douglas Christopher Wilson

Listing of all contributors

License

MIT

Source: https://www.npmjs.com/package/express

Posted by: carlintaid1947.blogspot.com

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