serverless-webpack configuration for debugging

webpack.config.js

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

module.exports = {
  devtool: 'source-map',
  entry: slsw.lib.entries,
  target: 'node',
  externals: [nodeExternals()],
  output: {
    libraryTarget: 'commonjs',
    path: path.resolve(__dirname, '.webpack'),
    filename: '[name].js' // this should match the first part of function handler in serverless.yml
  },
  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        loaders: ["babel-loader"]
      },
      {
        test: /\.json$/,
        loader: 'json-loader'
      }
    ]
  }
};