webpack basics

webpack.config.js

var path = require('path');
var webpack = require('webpack');

module.exports = {
  devtool: 'eval',
  entry: [
    './src/index'
  ],
  output: {
    path: path.join(__dirname, 'public'),
    filename: 'main.js'
  },
  module: {
    loaders: [
      {
        test: /(\.jsx|\.js)$/,
        include: path.join(__dirname, 'src'),
        exclude: /node_modules/,
        loader: 'babel-loader',
        query: {
          presets: ['es2015', 'react']
        }
      }
    ]
  },
  resolve: {
    root: path.join(__dirname, 'src'),
    extensions: ['', '.js']
  },
  devServer: {
    port: [port_number],
    stats: 'errors-only',
    contentBase: './public',
    proxy: [{
      path: '/api*',
      target: '[express_or_webapi]'
    }]
  }
}