express-webpack

Development and Hot Module Reload middleware for Express

This module implements webpack-dev-middleware and webpack-hot-client into a single middleware.

Install

Using npm:

npm install express-webpack --save-dev

Usage

See /examples for an examples of usage.

const express = require('express')
const expressWebpack = require('express-webpack')

const app = express()
const { middleware } = await expressWebpack()

app.use(middleware)

Options

configPath

By default it will use your webpack.config.js located in your root directory but you can set a diferent path using this option.

const express = require('express')
const expressWebpack = require('express-webpack')

const app = express()
const { middleware } = await expressWebpack({
configPath: require.resolve('./webpack.dev.js'),
})

app.use(middleware)

config

You can pass a webpack configuratin object using this option.

const express = require('express')
const expressWebpack = require('express-webpack')

const config = {
	mode: 'development',
	entry: ['./src'],
	output: {
		publicPath: '/',
	},
}

const app = express()
const { middleware } = await expressWebpack({ config })

app.use(middleware)

compiler

You can pass your own webpack compiler using this option.

const webpack = require('webpack')
const express = require('express')
const expressWebpack = require('express-webpack')
const config = require('./webpack.config')

const app = express()
const compiler = webpack(config)
const { middleware } = await expressWebpack({ compiler })

app.use(middleware)

hotClient

You can override the default options set by webpack-hot-client by setting an object with the availables options for the webpack-hot-client or shutdown the HMR by setting this option to false.

devMiddleware

You can override the default options set by webpack-dev-middleware by setting an object with the availables options for the webpack-dev-middleware

API

expressWebpack([options])

Returns a Promise which resolves in an object with the following properties:

• middleware (Object) - Middleware for development and HMR

• close(callback) (Function) - Close both instances of webpack-dev-middleware and webpack-hot-middleware if enabled. Receive a callback function which is executed when both instances are closed.

• hotClient (Object) - An instance of webpack-hot-client.

• devMiddleware (Object) - An instance of webpack-dev-middleware.