Using WebSockets in Vue

WebSockets are a new technology that enables two-way communication between the user and the server where the app is hosted. Before this technology, only the browser could initiate a request and, thus, a connection. If some update on the page was expected, the browser had to continuously poll the server. With WebSockets, this is no longer necessary; after the connection is established, the server can send updates only when there is a need.

Getting ready

You don't need any preparation for this recipe, just the basics of Vue. If you don't know what WebSockets are, you don't really need to, just think about them as a channel of continuous two-way communication between a server and browser.

 

How to do it...

For this recipe, we need a server and a browser that will act a client. We will not build a server; instead, we'll use an already existing server that just echoes whatever you send to it via WebSockets. So, if we were to send the Hello message, the server would respond...