The async api bit is pretty off for a couple of reasons. 1. REST is not inherently uni-directional. This is especially going to be the case in the internet of

The async api bit is pretty off for a couple of reasons. 1. REST is not inherently uni-directional. This is especially going to be the case in the internet of things, where you're just as likely to have servers on both ends. 2. You can do server->client push with Server-Sent Events.