Webpack and Typescript configuration in React – Part 2

Ahamed Fazil Buhari
 
Senior Developer
May 11, 2018
 
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Hello everyone, this is the continuation of my previous article – In this we will see how to configure your webpack. To gain more knowledge on what webpack is and what is the use of it, please refer my article – Introduction to Webpack and Typescript configuration in React – Part 1. I have simple react application which uses Typescript. In the below screenshot you can see structure of my application.

 

image

 

 

And the package.json will be available as below after installing various packages and dev dependencies,

 

image

 

The below files are used for webpack folder:

webpack.config.js

 const path = require('path');
 const loadersConfig = require('./webpack.loaders.js');
 const pluginsConfig = require('./webpack.plugins.js');
 
 module.exports = function() {
     return {
         entry: "./src/index.tsx",
         output: {
             filename: "bundle.js",
             path: __dirname + "/dist"
         },
         plugins: pluginsConfig,
         module: {
             rules: loadersConfig
         },
         // Enable sourcemaps for debugging webpack's output.
         devtool: 'inline-source-map',
         resolve: {
             // Add '.ts' and '.tsx' as resolvable extensions.
             extensions: [".ts", ".tsx", ".js", "min.js", ".json"],
             modules: ['node_modules'],
             alias : {
                 environment: path.join(__dirname, '../src/environment', (process.env.NODE_ENV || 'local'))
             }
         },
         devServer: {
             stats: 'minimal',
             port: 3000, // most common port
             contentBase: './dist',
             inline: true
           },
     };
 };
 

 

webpack.develop.js – Configuration for development purpose.

 const path = require('path');
 const config = require('./webpack.config.js');
 const webpackMerge = require('webpack-merge');
 const ExtractTextPlugin = require('extract-text-webpack-plugin');
 
 module.exports = webpackMerge(config(), {
   output: {
     path: path.resolve('src'),
     filename: 'bundle.js',
     publicPath: '/',
     devtoolModuleFilenameTemplate: '[absolute-resource-path]'
   },
   devtool: 'inline-source-map',
   module: {
     rules: [
       { enforce: 'pre', test: /\.js$/, loader: 'source-map-loader', exclude: /node_modules/ }
     ]
   },
   devServer: {
     stats: 'minimal',
     contentBase: './src',
     historyApiFallback: true,
     watchOptions: {
       aggregateTimeout: 300,
       poll: 1000
     }
   },
   plugins: [
     new ExtractTextPlugin('[name].css')
   ]
 });
 

webpack.loader.js – Loader configuration

 const ExtractTextPlugin = require("extract-text-webpack-plugin");
 
 module.exports = [
   {
     enforce: "pre",
     test: /\.js$/,
     loader: "source-map-loader"
   },
   {
     test: /\.tsx?$/,
     exclude: /node_modules/,
     loader: "awesome-typescript-loader"
   },
   {
     test: /\.css$/,
     use: ["style-loader", "css-loader"]
   },
   {
     test: /\.scss/,
     exclude: /node_modules/,
     loader: ExtractTextPlugin.extract({
       fallback: "style-loader",
       use: ["css-loader", "sass-loader"]
     })
   },
   {
     test: /\.(jpe?g|png|gif|svg)$/i,
     loader: "file-loader",
     options: {
       name: "images/[name].[ext]"
     }
   }
 ];
 

webpack.plugins.js – Plugins configuration

 const webpack = require("webpack");
 const HtmlWebpackPlugin = require("html-webpack-plugin");
 
 module.exports = [
   new webpack.ProvidePlugin({
     React: "react"
   }),
   new HtmlWebpackPlugin({
     template: "src/index.html",
     favicon: "src/favicon.ico"
   }),
   new webpack.EnvironmentPlugin({
     NODE_ENV: 'development', // use 'development' unless process.env.NODE_ENV is defined
     //NODE_ENV: 'production'
   })  
 ];
 
 

webpack.production.js – Plugins and different output path for production

 const path = require('path');
 const config = require('./webpack.config.js');
 const webpack = require('webpack');
 const webpackMerge = require('webpack-merge');
 const ExtractTextPlugin = require('extract-text-webpack-plugin');
 
 module.exports = webpackMerge(config(), {
   output: {
     path: path.resolve('dist'),
     filename: 'js/[name].min.[hash].js',
     publicPath: '/'
   },
   devtool: 'source-map',
   plugins: [
     new ExtractTextPlugin({filename: 'css/[name].[hash].css'}),
     new webpack.LoaderOptionsPlugin({
       minimize: true,
       debug: false
     }),
     new webpack.optimize.UglifyJsPlugin({
       beautify: false,
       sourceMap: false,
       mangle: {
         screw_ie8: true,
         keep_fnames: true
       },
       compress: {
         screw_ie8: true,
         warnings: false
       },
       comments: false
     })
   ]
 });
 

To run the script for development –

Use: npm start

To run the script for production – it will create dist folder and it will have

Use: npm run-script build:prod

 

 

 

Happy Coding

Ahamed

Author Info

Ahamed Fazil Buhari
 
Senior Developer
 
Rate this article
[Total: 0    Average: 0/5]
 
Ahamed is a Senior Developer and he has very good experience in the field of Microsoft Technologies, especially SharePoint 2013, 2016 and O365, Azure, ASP.NET, SQL Server, IIS and client ...read more
 

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