Async / Await is one of the most awaited features of Javascript, which is already available under the harmony flag on V8 engine. However there are full fledge Node frameworks already around it. KoaJS2 is one of the upcoming frameworks, created by the the developers who made the very popular Express framework. Since Express has now been sold to Strongloop (which got bought by IBM), there is no word on the new version of Express. But Koa is definitely here already and its super amazing…