Configuration for non-working webpack bundle

webpack.config.js

/* eslint-disable */
const fs = require('fs');
const nodeExternals = require('webpack-node-externals');
const path = require('path');
const webpack = require('webpack');
const resolve = require('resolve');
const ManifestPlugin = require('webpack-manifest-plugin');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const ModuleNotFoundPlugin = require('react-dev-utils/ModuleNotFoundPlugin');

const styledJSXRule = require('../styled-jsx-rule');
const paths = require('./static-paths');
const modules = require('./modules');
const getClientEnvironment = require('./env');
const { plugins: babelPlugins } = require('../.babelrc');

// Source maps are resource heavy and can cause out of memory issue for large source files.
const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
// Some apps do not need the benefits of saving a web request, so not inlining the chunk
// makes for a smoother build process.
const shouldInlineRuntimeChunk = process.env.INLINE_RUNTIME_CHUNK !== 'false';

// Check if TypeScript is setup
const useTypeScript = fs.existsSync(paths.appTsConfig);

// This is the production and development configuration.
// It is focused on developer experience, fast rebuilds, and a minimal bundle.
module.exports = function(webpackEnv) {
    const isEnvDevelopment = webpackEnv === 'development';
    const isEnvProduction = webpackEnv === 'production';

    // Webpack uses `publicPath` to determine where the app is being served from.
    // It requires a trailing slash, or the file assets will get an incorrect path.
    // In development, we always serve from the root. This makes config easier.
    const publicPath = isEnvProduction
        ? paths.servedPath
        : isEnvDevelopment && '/';
    // Some apps do not use client-side routing with pushState.
    // For these, "homepage" can be set to "." to enable relative asset paths.
    const shouldUseRelativeAssetPaths = publicPath === './';

    // `publicUrl` is just like `publicPath`, but we will provide it to our app
    // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
    // Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
    const publicUrl = isEnvProduction
        ? publicPath.slice(0, -1)
        : isEnvDevelopment && '';
    // Get environment variables to inject into our app.
    const env = getClientEnvironment(publicUrl);

    return {
        mode: 'production',
        entry: paths.appIndexJs,
        externals: [nodeExternals()],
        output: {
            //    libraryTarget: 'commonjs',
            globalObject: 'this',
            // The build folder.
            path: paths.appBuild,
            // Add /* filename */ comments to generated require()s in the output.
            // In development, it does not produce real files.
            filename: 'main.js',
            // TODO: remove this when upgrading to webpack 5
            futureEmitAssets: true,
            // There are also additional JS chunk files if you use code splitting.
            //~cph            chunkFilename: 'static/js/[name].chunk.js',
            // We inferred the "public path" (such as / or /my-project) from homepage.
            // We use "/" in development.
            publicPath: publicPath
            // Point sourcemap entries to original disk location (format as URL on Windows)
        },
        optimization: {
            // Automatically split vendor and commons
            // https://twitter.com/wSokra/status/969633336732905474
            // https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
            splitChunks: {
                chunks: 'all',
                name: false
            }
        },
        plugins: [
            new webpack.optimize.LimitChunkCountPlugin({
                maxChunks: 1
            })
        ],

        resolve: {
            // This allows you to set a fallback for where Webpack should look for modules.
            // We placed these paths second because we want `node_modules` to "win"
            // if there are any conflicts. This matches Node resolution mechanism.
            // https://github.com/facebook/create-react-app/issues/253
            modules: ['node_modules', paths.appNodeModules].concat(
                modules.additionalModulePaths || []
            ),
            // These are the reasonable defaults supported by the Node ecosystem.
            // We also include JSX as a common component filename extension to support
            // some tools, although we do not recommend using it, see:
            // https://github.com/facebook/create-react-app/issues/290
            // `web` extension prefixes have been added for better support
            // for React Native Web.
            extensions: paths.moduleFileExtensions
                .map((ext) => `.${ext}`)
                .filter((ext) => useTypeScript || !ext.includes('ts')),
            alias: {
                // Support React Native Web
                // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
                'react-native': 'react-native-web'
            },
            plugins: [
                // Prevents users from importing files from outside of src/ (or node_modules/).
                // This often causes confusion because we only process files within src/ with babel.
                // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
                // please link the files into your node_modules/ and let module-resolution kick in.
                // Make sure your source files are compiled, as they will not be processed in any way.
                new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson])
            ]
        },
        resolveLoader: {},
        module: {
            strictExportPresence: true,
            rules: [
                {
                    test: /\.(graphql|gql)$/,
                    exclude: /node_modules/,
                    loader: 'graphql-tag/loader'
                },
                /*
        // support sourcemaps from 3p modules
        // https://webpack.js.org/loaders/source-map-loader/
        {
          test: /\.js$/,
          use: ['source-map-loader'],
          enforce: 'pre'
        },*/
                // Disable require.ensure as it's not a standard language feature.
                { parser: { requireEnsure: false } },
                {
                    // "oneOf" will traverse all following loaders until one will
                    // match the requirements. When no loader matches it will fall
                    // back to the "file" loader at the end of the loader list.
                    oneOf: [
                        {
                            test: /\.svg$/,
                            loader: 'svg-url-loader',
                            options: {
                                // make loader to behave like url-loader, for all svg files
                                encoding: 'base64'
                            }
                        },
                        // "url" loader works like "file" loader except that it embeds assets
                        // smaller than specified limit in bytes as data URLs to avoid requests.
                        // A missing `test` is equivalent to a match.
                        {
                            test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
                            loader: require.resolve('url-loader'),
                            options: {
                                limit: 10000,
                                name: 'static/media/[name].[hash:8].[ext]'
                            }
                        },
                        // Process application JS with Babel.
                        // The preset includes JSX, Flow, TypeScript, and some ESnext features.
                        {
                            test: /\.(js|mjs|jsx|ts|tsx)$/,
                            include: paths.appSrc,
                            loader: require.resolve('babel-loader'),
                            options: {
                                customize: require.resolve(
                                    'babel-preset-react-app/webpack-overrides'
                                ),

                                plugins: [
                                    [
                                        require.resolve(
                                            'babel-plugin-named-asset-import'
                                        ),
                                        {
                                            loaderMap: {
                                                // svg: {
                                                //   ReactComponent: '@svgr/webpack?-svgo,+ref![path]'
                                                // }
                                            }
                                        }
                                    ],
                                    ...babelPlugins.filter(
                                        (f) => !/remove-jsx-attr/.test(f)
                                    )
                                ],
                                // This is a feature of `babel-loader` for webpack (not Babel itself).
                                // It enables caching results in ./node_modules/.cache/babel-loader/
                                // directory for faster rebuilds.
                                cacheDirectory: true,
                                cacheCompression: isEnvProduction,
                                compact: isEnvProduction
                            }
                        },
                        // Process any JS outside of the app with Babel.
                        // Unlike the application JS, we only compile the standard ES features.
                        {
                            test: /\.(js|mjs)$/,
                            exclude: /@babel(?:\/|\\{1,2})runtime/,
                            loader: require.resolve('babel-loader'),
                            options: {
                                babelrc: false,
                                configFile: false,
                                compact: false,
                                presets: [
                                    [
                                        require.resolve(
                                            'babel-preset-react-app/dependencies'
                                        ),
                                        { helpers: true }
                                    ]
                                ],
                                cacheDirectory: true,
                                cacheCompression: isEnvProduction,

                                // If an error happens in a package, it's possible to be
                                // because it was compiled. Thus, we don't want the browser
                                // debugger to show the original code. Instead, the code
                                // being evaluated would be much more helpful.
                                sourceMaps: true
                            }
                        },
                        // load in styled jsx
                        styledJSXRule,
                        // "file" loader makes sure those assets get served by WebpackDevServer.
                        // When you `import` an asset, you get its (virtual) filename.
                        // In production, they would get copied to the `build` folder.
                        // This loader doesn't use a "test" so it will catch all modules
                        // that fall through the other loaders.
                        {
                            loader: require.resolve('file-loader'),
                            // Exclude `js` files to keep "css" loader working as it injects
                            // its runtime that would otherwise be processed through "file" loader.
                            // Also exclude `html` and `json` extensions so they get processed
                            // by webpacks internal loaders.
                            exclude: [
                                /\.(js|mjs|jsx|ts|tsx)$/,
                                /\.html$/,
                                /\.json$/
                            ],
                            options: {
                                name: 'static/media/[name].[hash:8].[ext]'
                            }
                        }
                        // ** STOP ** Are you adding a new loader?
                        // Make sure to add the new loader(s) before the "file" loader.
                    ]
                }
            ]
        },
        plugins: [
            // This gives some necessary context to module not found errors, such as
            // the requesting resource.
            new ModuleNotFoundPlugin(paths.appPath),
            // Makes some environment variables available to the JS code, for example:
            // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
            // It is absolutely essential that NODE_ENV is set to production
            // during a production build.
            // Otherwise React will be compiled in the very slow development mode.
            new webpack.DefinePlugin(env.stringified),
            // Watcher doesn't work well if you mistype casing in a path so we use
            // If you require a missing module and then `npm install` it, you still have
            // to restart the development server for Webpack to discover it. This plugin
            // makes the discovery automatic so you don't have to restart.
            // See https://github.com/facebook/create-react-app/issues/186
            // Generate a manifest file which contains a mapping of all asset filenames
            // to their corresponding output file so that tools can pick it up without
            // having to parse `index.html`.
            new ManifestPlugin({
                fileName: 'asset-manifest.json',
                publicPath: publicPath,
                generate: (seed, files) => {
                    const manifestFiles = files.reduce(function(
                        manifest,
                        file
                    ) {
                        manifest[file.name] = file.path;
                        return manifest;
                    },
                    seed);

                    return {
                        files: manifestFiles
                    };
                }
            })
            // TypeScript type checking
        ].filter(Boolean)
        // Some libraries import Node modules but don't use them in the browser.
        // Tell Webpack to provide empty mocks for them so importing them works.
    };
};
/* eslint-enable */