webpack.dev.js

var config = require('./webpack.config')
var merge = require('webpack-merge')
var path = require('path')
var webpack = require('webpack')

module.exports = merge(config, {
    mode: 'development',
    entry: {
        webpack: [
            'react-hot-loader/patch',
            'webpack-dev-server/client?http://localhost:8080',
            'webpack/hot/only-dev-server'
        ]
    },
    devServer: {
        hot: true,
        contentBase: path.resolve(__dirname, 'assets'), // eslint-disable-line no-undef
        publicPath: '/',
        headers: {
            'Access-Control-Allow-Origin': '*',
            'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, PATCH, OPTIONS',
            'Access-Control-Allow-Headers': 'X-Requested-With, content-type, Authorization'
        }
    },
    output: {
        publicPath: 'http://localhost:8080/',
        filename: '[name].js'
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
    ],
    module: {
        rules: [
            {
                test: /\.s?css$/,
                use: [
                    'style-loader',
                    'css-loader?importLoaders=1',
                    'sass-loader',
                ]
            },
        ]
    }
})