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webpack-dev-server

Use webpack with a development server that provides live reloading. This should be used for development only.

It uses webpack-dev-middleware under the hood, which provides fast in-memory access to the webpack assets.

Project in Maintenance

Please note that webpack-dev-server is presently in a maintenance-only mode and will not be accepting any additional features in the near term. Most new feature requests can be accomplished with Express middleware; please look into using the before and after hooks in the documentation.

Getting Started

First thing's first, install the module:

npm install webpack-dev-server --save-dev

Note: While you can install and run webpack-dev-server globally, we recommend installing it locally. webpack-dev-server will always use a local installation over a global one.

Usage

There are two main, recommended methods of using the module:

With the CLI

The easiest way to use it is with the CLI. In the directory where your webpack.config.js is, run:

node_modules/.bin/webpack-dev-server

With NPM Scripts

NPM package.json scripts are a convenient and useful means to run locally installed binaries without having to be concerned about their full paths. Simply define a script as such:

"scripts": {
  "start:dev": "webpack-dev-server"
}

And run the following in your terminal/console:

npm run start:dev

NPM will automagically reference the binary in node_modules for you, and execute the file or command.

The Result

Either method will start a server instance and begin listening for connections from localhost on port 8080.

webpack-dev-server is configured by default to support live-reload of files as you edit your assets while the server is running.

See the documentation for more use cases and options.

Browser Support

While webpack-dev-server transpiles the client (browser) scripts to an ES5 state, the project only officially supports the last two versions of major browsers. We simply don't have the resources to support every whacky browser out there.

If you find an bug with an obscure / old browser, we would actively welcome a Pull Request to resolve the bug.

Support

We do our best to keep Issues in the repository focused on bugs, features, and needed modifications to the code for the module. Because of that, we ask users with general support, "how-to", or "why isn't this working" questions to try one of the other support channels that are available.

Your first-stop-shop for support for webpack-dev-server should by the excellent documentation for the module. If you see an opportunity for improvement of those docs, please head over to the webpack.js.org repo and open a pull request.

From there, we encourage users to visit the webpack Gitter chat and talk to the fine folks there. If your quest for answers comes up dry in chat, head over to StackOverflow and do a quick search or open a new question. Remember; It's always much easier to answer questions that include your webpack.config.js and relevant files!

If you're twitter-savvy you can tweet #webpack with your question and someone should be able to reach out and lend a hand.

If you have discovered a :bug:, have a feature suggestion, of would like to see a modification, please feel free to create an issue on Github. Note: The issue template isn't optional, so please be sure not to remove it, and please fill it out completely.

Contributing

We welcome your contributions! Please have a read of CONTRIBUTING.md for more information on how to get involved.

Maintainers

Kees Kluskens

README.md