gistfile1.js

//require('./jsx-modules');     // Enable JSX transforms for require

var defer = require('q').defer;
//var react = require('react-tools');

function *page() {
  this.body = yield render({
    route: this.path
  });
}

module.exports = page;

function render(viewModel) {
  var d = defer();
  //var template = require('./view/test.jsx');
  //var html = react.renderComponentToString()
  d.resolve('test');
  return d;
}

Server:

var server = koa();

  server
    //.use(mount('/api', api))
    .use(page);