Web Sockets -Communication protocol to transmit data between computers Real time features -Monitor when someone is typing -Messaging apps -See if someone is online or not -real time data

Fast, Lightweight, Supported by the browser -The connection is persistent and maintained unlike in http where the connection ends as soon as the serever sends a http response -No need to re establish connection and fo through authentication process

Patterns of Ws -Pub Sub -Only sends data in one wa y -one publisher(server) -A lot of subscribers(clients) -E.g financial app, streaming live financial data -Video streaming platforms -CCTV

-RPC -Two way communication protocol -remote function calls(server returns response from functions) -Only happens with one client -Used in chat messaging

Mesaging uses both pubSub and RPC for one to one and one to many chats

Laravel Has inbuilt suport for pub sub -configure web socket server in laravel -Pusher, ably - web socket server - subscriptions -Laravel websockets