webpack.config.js

const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  entry: ['./client/index.js'],
  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/',
    filename: 'bundle.js',
  },
  mode: process.env.NODE_ENV || 'production',
  module: {
    rules: [
      {
        test: /\.jsx?/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/preset-react'],
          },
        },
      },
      {
        test: /\.s?[ac]ss$/i,
        use: ['style-loader', 'css-loader', 'sass-loader'],
      },
      {
        test: /\.svg$/,
        use: ['@svgr/webpack'],
      },
    ],
  },
  devServer: {
    publicPath: '/',
    hot: true,
    port: 8080,
    proxy: {
      // '/api': 'http://localhost:3000/',
      // '/login': 'http://localhost:3000/',
      '/**': { target: 'http://localhost:3000' },
    },
  },
  plugins: [new HtmlWebpackPlugin({ template: './client/index.html' })],
};