This is a socket application for real time bus tracking. It is an university project where we were required to build something related to smart cities.
https://www.npmjs.com/package/websocket-vs-socket.io https://github.com/JVictorDias https://github.com/socketio/socket.io-protocol#protocol-version https://www.educba.com/websocket-vs-socket-io/ https://www.educba.com/websocket-vs-rest/ https://itnext.io/differences-between-websockets-and-socket-io-a9e5fa29d3dc