server.js

var webpack = require('webpack');
var WebpackDevServer = require('webpack-dev-server');
var config = require('./webpack.config');
var serverConfig = require('./server.config.json');

var devServerPort = serverConfig.devServerPort || 8080;
var contentUrl = serverConfig.url;

var compiler = webpack(config);
var originalOutputFileSystem = compiler.outputFileSystem;


module.exports.start = function start(callback) {
  var devServer = new WebpackDevServer(compiler, {
    contentBase: contentUrl,
    //hot: true,
    //headers: { "Access-Control-Allow-Origin": "*" },
    inline: true,
    historyApiFallback: true,
    filename: config.output.filename
  })
  .listen(devServerPort, 'localhost', function (err, result) {
    // WebpackDevServer uses in-memory compilation
    // (!) Restore original output to file system
    compiler.outputFileSystem  = originalOutputFileSystem;

    if (err) {
      console.error(err);
      return callback(err);
    }

    console.log('Listening to localhost:' + devServerPort);

    callback(null, devServer);
  });
};


module.exports.build = function build(callback){
  compiler.run(function(err, stats) {
    if(err)
      console.error(stats);

    if(stats) console.info(stats.toString());

    callback(err, stats);
  });
}