У меня приложение SPA работает правильно, затем мне нужно изменить метатег, чтобы поделиться сайтом с og: meta. После многих исследований я знаю, что мне нужно рендерить свой контент на сервер, поэтому мое приложение будет универсальным (рендеринг сервер + клиент). Я попытался создать простой сервер, затем добавил битовый код к webpack config. Но я застрял там. Вот мой конфиг веб-страницы:
webpack.config.dev.js
'use strict';
const autoprefixer = require('autoprefixer');
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');
const getClientEnvironment = require('./env');
const paths = require('./paths');
const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');
// Webpack uses `publicPath` to determine where the app is being served from.
// In development, we always serve from the root. This makes config easier.
const 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_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
const publicUrl = '';
const env = getClientEnvironment(publicUrl);
const client = {
devtool: 'cheap-module-source-map',
entry: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appIndexJs,
],
output: {
pathinfo: true,
filename: 'static/js/bundle.js',
chunkFilename: 'static/js/[name].chunk.js',
publicPath: publicPath,
devtoolModuleFilenameTemplate: info =>
path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
},
resolve: {
modules: ['node_modules', paths.appNodeModules].concat(
process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
),
extensions: [
'.mjs',
'.web.ts',
'.ts',
'.web.tsx',
'.tsx',
'.web.js',
'.js',
'.json',
'.web.jsx',
'.jsx',
],
alias: {
'react-native': 'react-native-web',
},
plugins: [
new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
new TsconfigPathsPlugin({ configFile: paths.appTsConfig }),
],
},
module: {
strictExportPresence: true,
rules: [
{
test: /\.(js|jsx|mjs)$/,
loader: require.resolve('source-map-loader'),
enforce: 'pre',
include: paths.appSrc,
},
{
oneOf: [
{
test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
loader: require.resolve('url-loader'),
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]',
},
},
{
test: /\.(js|jsx|mjs)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
compact: true,
},
},
{
test: /\.(ts|tsx)$/,
include: paths.appSrc,
use: [
{
loader: require.resolve('ts-loader'),
options: {
// disable type checker - we will use it in fork plugin
transpileOnly: true,
},
},
],
},
{
test: /\.css$/,
use: [
require.resolve('style-loader'),
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1,
},
},
{
loader: require.resolve('postcss-loader'),
options: {
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
},
},
],
},
{
exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
loader: require.resolve('file-loader'),
options: {
name: 'static/media/[name].[hash:8].[ext]',
},
},
],
},
],
},
plugins: [
new InterpolateHtmlPlugin(env.raw),
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
}),
new webpack.NamedModulesPlugin(),
new webpack.DefinePlugin(env.stringified),
new webpack.HotModuleReplacementPlugin(),
new CaseSensitivePathsPlugin(),
new WatchMissingNodeModulesPlugin(paths.appNodeModules),
new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
new ForkTsCheckerWebpackPlugin({
async: false,
watch: paths.appSrc,
tsconfig: paths.appTsConfig,
tslint: paths.appTsLint,
}),
],
node: {
dgram: 'empty',
fs: 'empty',
net: 'empty',
tls: 'empty',
child_process: 'empty',
},
performance: {
hints: false,
},
}
/* i add a bit code to config server rendering */
const nodeExternals = require('webpack-node-externals');
const server = {
target: 'node',
externals: [nodeExternals()],
entry: [
paths.appServerJs,
],
output: {
pathinfo: true,
filename: 'static/js/bundle.js',
chunkFilename: 'static/js/[name].chunk.js',
publicPath: publicPath,
},
module: {
rules: [
{
test: /\.(js|jsx|mjs)$/,
loader: require.resolve('source-map-loader'),
enforce: 'pre',
include: paths.appSrc,
},
{
test: /\.(js|jsx|mjs)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
compact: true,
},
},
// Compile .tsx?
{
test: /\.(ts|tsx)$/,
include: paths.appSrc,
use: [
{
loader: require.resolve('ts-loader'),
options: {
// disable type checker - we will use it in fork plugin
transpileOnly: true,
},
},
],
},
],
},
plugins: [
new InterpolateHtmlPlugin(env.raw),
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
}),
],
}
module.exports = [client, server]
server.tsx
import express from 'express';
const port = 3000;
const server = express();
server.use(express.static('dist'));
server.get('/', (req, res) => {
res.send("hello world");
})
server.listen(3000, () => console.log('Example app listening on port 3000!'));
const client работает правильно.
Но когда я пытаюсь module.exports = [client, server] я получил эту ошибку
Cannot read property 'publicPath' of undefined.
Мой конфиг правильный? У кого-нибудь есть пример конфигурации?