react-hackathon-board/react-hackathon/server/middleware/webpack-hmr.js

Hackathon board with React/node/mongo

import WebpackHotMiddleware from 'webpack-hot-middleware';
import applyExpressMiddleware from '../lib/apply-express-middleware';
import _debug from 'debug';

const debug = _debug('app:server:webpack-hmr');

export default function (compiler, opts) {
  debug('Enable Webpack Hot Module Replacement (HMR).');

  const middleware = WebpackHotMiddleware(compiler, opts);
  return async function koaWebpackHMR (ctx, next) {
    let hasNext = await applyExpressMiddleware(middleware, ctx.req, ctx.res);

    if (hasNext && next) {
      await next();
    }
  };
}