webpack.dev.config.js

const path = require('path')
const Dotenv = require('dotenv-webpack')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const webpack = require('webpack')

module.exports = {
  entry: {
    app: path.resolve(__dirname, 'src/index.js')

  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'js/[name].js',
    publicPath: 'http://localhost:9001/',
    chunkFilename: 'js/[id].[chunkhash].js'
  },
  devServer: {
    contentBase: path.resolve(__dirname, 'dist'),
    open: true,
    port: 9001,
    hot: true,
    historyApiFallback: true
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        use: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(s*)css$/,
        use: [
          'style-loader',
          'css-loader',
          'sass-loader'
        ]
      },
      {
        test: /\.jpg|png|gif|woff|eot|ttf|svg|mp4|webm$/,
        use: {
          loader: 'file-loader',
          options: {
            outputPath: 'assets/'
          }
        }
      }
    ]
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, 'public/index.html')
    }),
    new Dotenv()
  ]
}