moving front app to subfolder. add webpack config with watch and dev-server mode. moving deploy things in subfolder

media-store/app-src/webpack/common-plugins.js

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+const path = require('path');
+const webpack = require('webpack');
+const { CleanWebpackPlugin } = require('clean-webpack-plugin');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const CopyPlugin = require('copy-webpack-plugin');
+const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
+
+module.exports = {
+  plugins: [
+    new CleanWebpackPlugin(),
+    new HtmlWebpackPlugin({
+      template: path.join(__dirname, '../public/index.html'),
+      filename: path.join(__dirname, '../../app/index.html'),
+      publicPath: '/static/', // for js bundles path
+    }),
+    new InterpolateHtmlPlugin(HtmlWebpackPlugin, {
+      PUBLIC_URL: '',
+    }),
+    new CopyPlugin({
+      patterns: [
+        {
+          from: path.join(__dirname, '../public'),
+          to: path.join(__dirname, '../../app'),
+          globOptions: {
+            dot: true,
+            ignore: ['**/index.html'],
+          },
+        },
+      ],
+    }),
+    new webpack.ProgressPlugin(),
+  ],
+};

media-store/app-src/webpack/common-rules.js

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+module.exports = {
+  rules: [
+    {
+      test: /\.(js|jsx)$/,
+      exclude: /(node_modules)/,
+      use: {
+        loader: 'babel-loader',
+        options: {
+          presets: ['@babel/preset-env', '@babel/preset-react'],
+        },
+      },
+    },
+    {
+      test: /\.(png|jpg)$/,
+      use: [{ loader: 'url-loader' }],
+    },
+  ],
+};

media-store/app-src/webpack/webpack-dev-server.js

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+const path = require('path');
+const webpack = require('webpack');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const { CleanWebpackPlugin } = require('clean-webpack-plugin');
+const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
+const { rules } = require('./common-rules');
+
+module.exports = {
+  mode: 'development',
+  devtool: 'inline-source-map',
+  entry: {
+    index: './src/index.jsx',
+    react: ['react', 'react-dom'],
+    lodash: ['lodash'],
+    moment: ['moment'],
+    events: ['events'],
+    axios: ['axios'],
+    antd: ['antd'],
+  },
+  devServer: {
+    contentBase: './dist',
+    compress: true, // compress files to gzip to increase download speed
+    port: 3000,
+    disableHostCheck: false, // by default true, it is not recomended,
+    // because it makes app vulnerable to DNS rebinding attacks
+    headers: {
+      'X-Custom-header': 'custom', // this requires apps with authentication
+      // useful config obj
+    },
+    open: true, // open the browser after server had been started
+    hot: true, // hot module replacement
+    historyApiFallback: true, // needs for react-router-dom
+  },
+  plugins: [
+    new CleanWebpackPlugin({ cleanStaleWebpackAssets: false }),
+    new HtmlWebpackPlugin({
+      template: path.join(__dirname, '../public/index.html'),
+    }),
+    new InterpolateHtmlPlugin(HtmlWebpackPlugin, {
+      PUBLIC_URL: '',
+    }),
+    new webpack.ProgressPlugin(),
+    new webpack.DefinePlugin({
+      'process.env.SERVICE_URL': JSON.stringify('http://localhost:4004/'),
+    }),
+    new webpack.HotModuleReplacementPlugin(), // for hot module replacement option of devServer
+  ],
+  output: {
+    filename: '[name].[fullhash].js',
+    path: path.resolve(__dirname, 'dist'),
+  },
+  module: {
+    rules: [
+      ...rules,
+      {
+        test: /\.css$/,
+        use: [{ loader: 'style-loader' }, { loader: 'css-loader' }],
+      },
+    ],
+  },
+  resolve: { extensions: ['*', '.js', '.jsx'] },
+};

media-store/app-src/webpack/webpack.common.js

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+const path = require('path');
+
+module.exports = {
+  entry: {
+    app: './src/index.jsx', // Bundle with our code
+    react: ['react', 'react-dom'],
+    lodash: ['lodash'],
+    moment: ['moment'],
+    events: ['events'],
+    axios: ['axios'],
+    antd: ['antd'],
+  },
+  output: {
+    // [name] - name of the entry (bundle),
+    // [checksum] or [hash] - to cache different bundles
+    // from update when developing (doing changes in the files)
+    filename: '[name].[fullhash].js',
+    // in this folder path bundles will be placed
+    path: path.resolve(__dirname, '../../app/static'),
+    // where you uploaded your bundled files. (Relative to server root)
+    // needs for react-router-dom
+    publicPath: '/static/',
+  },
+  resolve: { extensions: ['*', '.js', '.jsx'] },
+};

media-store/app-src/webpack/webpack.dev.js

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+const webpack = require('webpack');
+const { merge } = require('webpack-merge');
+const common = require('./webpack.common.js');
+const { rules } = require('./common-rules');
+const { plugins } = require('./common-plugins');
+
+module.exports = merge(common, {
+  mode: 'development',
+  devtool: 'inline-source-map',
+  plugins: [
+    ...plugins,
+    new webpack.DefinePlugin({
+      'process.env.SERVICE_URL': JSON.stringify('http://localhost:4004/'),
+    }),
+  ],
+  module: {
+    rules: [
+      ...rules,
+      {
+        test: /\.css$/,
+        use: [{ loader: 'style-loader' }, { loader: 'css-loader' }],
+      },
+    ],
+  },
+});

media-store/app-src/webpack/webpack.prod.js

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+const webpack = require('webpack');
+const { merge } = require('webpack-merge');
+const MiniCssExtractPlugin = require('mini-css-extract-plugin');
+const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
+const TerserPlugin = require('terser-webpack-plugin');
+const common = require('./webpack.common.js');
+const { rules } = require('./common-rules');
+const { plugins } = require('./common-plugins');
+
+module.exports = merge(common, {
+  mode: 'production',
+  devtool: 'source-map',
+  plugins: [
+    ...plugins,
+    new webpack.DefinePlugin({
+      'process.env.SERVICE_URL': JSON.stringify('api/'),
+    }),
+    new MiniCssExtractPlugin({
+      filename: '[name].css',
+      chunkFilename: '[id].css',
+    }),
+  ],
+  optimization: {
+    splitChunks: {
+      // To split up js code to different bundles.
+      chunks: 'all', // Now bundle with our code will be cleaned up
+    }, // from vendors imports (2mb ~> 100kb)
+    minimize: true,
+    minimizer: [new TerserPlugin(), new CssMinimizerPlugin()], // to minimize file size
+  },
+  module: {
+    rules: [
+      ...rules,
+      {
+        test: /\.css$/,
+        use: [MiniCssExtractPlugin.loader, 'css-loader'],
+      },
+    ],
+  },
+});