A web socket is like a special telephone line that allows instant and ongoing communication between your web browser and a server. It’s used for real-time updates, making websites and apps feel dynamic and interactive.
In summary, the WebSocket request/response handshake is the initial process where the client and the server agree to upgrade the connection to a WebSocket. Once the connection is established, both parties can freely send messages back and forth in real-time, creating a persistent and interactive communication channel.
request?
io.on() in Socket.IO is used to handle incoming events from clients by setting up event listeners on the server side.
connection establishment, event handling, broadcasting, error handling, scalabilty, logging and debugging.
socket.emit() is used to send events and data from the serer to a specific client, allowing for targeted communication between the server and the individual clients.
WebSocket is a protocol for real-time communication, while Socket.IO is a library that simplifies and enhances WebSocket usage by providing additional features, cross-browser compatibility, and flexibility in choosing communication mechanisms.
Socket.IO is a library that builds upon WebSocket and provides additional features and enhancements. It abstracts the WebSocket protocol and offers a more robust and flexible API for real-time communication.
WebSocket is a communication protocol that provides a standardized way for real-time, bidirectional communication between a client and a server over a single TCP connection.
There’s a reason they call it a TCP ‘handshake’, the client reaches their hand out asking for synchronization, the server reaches back with a synchronization acknowledgement as there extended hand. When their hands connect they have a two way link that can be used both ways.
I’m hoping there is further explaination of pretty much all the topics, since the information that was provided here wasn’t very helpful or enlightening.