webpack.prod.js

const { EnvironmentPlugin } = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

const common = require('./webpack.common');
const { merge } = require('webpack-merge');

module.exports = merge(common, {
  mode: 'production',
  module: {
    rules: [{
      test: /\.ts(x?)$/,
      loader: 'ts-loader',
      exclude: /node_modules/
    }, {
      test: /\.scss$/,
      use: [
        { loader: MiniCssExtractPlugin.loader },
        { loader: 'css-loader', options: { modules: true } },
        { loader: 'sass-loader' },
      ]
    }]
  },
  externals: {
    react: 'React',
    axios: 'axios',
    'react-dom': 'ReactDOM'
  },
  plugins: [
    new EnvironmentPlugin({
      API_URL: 'https://fordevs.herokuapp.com/api'
    }),
    new HtmlWebpackPlugin({
      template: './template.prod.html',
      favicon: './public/favicon.png',
    }),
    new MiniCssExtractPlugin({
      filename: 'main-bundle-[fullhash].css'
    })
  ]
})