webpack.config.js

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

module.exports = {
  entry: './src/index.js',
  output: {
    publicPath: '/',
    path: path.join(__dirname, '/dist'),
    filename: 'index_bundle.js',
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
      {
        test: /\.(scss|css)?$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
          },
          {
            loader: 'sass-loader',
          },
        ],
      },
      {
        test: /\.(jpe?g|png|gif|woff|woff2|eot|ttf|svg)(\?[a-z0-9=.]+)?$/,
        use: {
          loader: 'url-loader',
        },
      },
    ],
  },
  mode: 'development',
  devServer: {
    historyApiFallback: {
      disableDotRule: true,
    },
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './src/index.html',
    }),
    new webpack.DefinePlugin({
      PRODUCTION_API: JSON.stringify('https://caret-bn-backend-staging.herokuapp.com/api/v1/'),
    }),
    new webpack.DefinePlugin({
      DEVELOPMENT_API: JSON.stringify('http://localhost:3000/api/v1/'),
    }),
  ],
};