webpack.config.js

const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

module.exports = {
  entry: [
    'webpack-dev-server/client?http://localhost:8080',
    'webpack/hot/only-dev-server',
    './src/index.jsx',
    './src/styles/main.scss'
  ],
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'react-hot-loader'
          },
          {
            loader: 'babel-loader'
          }
        ]
      },
      {
        test: /\.(sass|scss|css)$/,
        use: ExtractTextPlugin.extract({
          use: [
            {
              loader: 'css-loader',
              options: { importLoaders: 1 }
            },
            {
              loader: 'postcss-loader',
              options: {
                config: {
                  path: 'postcss.config.js'
                }
              }
            },
            {
              loader: 'sass-loader'
            }
          ]
        })
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2)$/,
        use: 'file-loader?name=fonts/[name].[ext]'
      },
      {
        test: /\.(jpe?g|png|gif|svg)$/i,
        use: 'url-loader?limit=8192'
      },
      {
        test: /\.json$/,
        use: 'json-loader'
      }
    ]
  },
  resolve: {
    extensions: ['*', '.js', '.jsx']
  },
  output: {
    path: __dirname + '/dist',
    publicPath: '/',
    filename: 'bundle.js',
    chunkFilename: 'blog.[chunkhash].js'
  },
  devServer: {
    contentBase: './dist',
    historyApiFallback: true,
    hot: true,
  },
  plugins: [
    new ExtractTextPlugin({
      filename: 'styles.css',
      allChunks: true
    }),
    new webpack.HotModuleReplacementPlugin()
  ]
};