How does a websocket work?

@sr57 Thank you for this can you please give me a kind short explanation of how the connection between server and client is established? like what exactly is it that is constantly listening to the channel?

@sr57 how are you putting text in the little grey box?

@Randy_Johnson

Have a look to this thread

https://laracasts.com/discuss/channels/tips/add-a-new-line-when-posting

and search for markdown on the web on how to insert image, ... like this thread

https://laracasts.com/discuss/channels/laravel/get-wifi-connected-devices-location

@iftekhs

Depend what you mind by « constantly listinening » but in term of network com, the answer is mainly no, and it’s the main advantage of (web)socket, it reduces bandwidth usage.

It’s a full duplex com, server & client share the same data that are synced on each side. So the client or the server read or write the data from the channel, but there is no network communication except for the server or the client (full duplex) to write the data and some to make the channel works well all the time once it’s opened.

2 good documentations

• https://www.tutorialspoint.com/unix_sockets/what_is_socket.htm

• https://www.tutorialspoint.com/websockets/websockets_quick_guide.htm

@sr57 So basically web applications use protocols like FTP, SMTP, etc with WebSockets to establish connection between 2 computers or server and the client, so web sockets itself is a system that allows communication between the server and client right?