webpack.config.js

var path = require('path');
var slsw          = require('serverless-webpack');
var nodeExternals = require('webpack-node-externals');

// Add error handling and source map support
var entries = Object.keys(slsw.lib.entries).reduce(function(acc, key) {
  acc[key] = ["./_webpack/include.js", slsw.lib.entries[key]];
  return acc;
}, {});

console.log(__dirname);

module.exports = {
  entry: entries,
  target: 'node',
  // Generate sourcemaps for proper error messages
  devtool: 'source-map',
  // Since 'aws-sdk' is not compatible with webpack,
  // we exclude all node dependencies
  externals: [nodeExternals({
    whitelist: [ 'kraken-api' ]
  })],
  // Run babel on all .js files and skip those in node_modules
  module: {
    rules: [{
      test: /\.js$/,
      loader: 'babel-loader',
      include: __dirname,
      exclude: /node_modules\/(?!(kraken-api)\/).*/,
    }]
  }
};