The Platform To Power up Synchronized Digital Experiences In Real-Time With Socket io

Our everyday digital experiences are in the midst of a real-time revolution. Whether attending an event in a virtual venue, or receiving real-time financial information, or monitoring live car performance data – consumers simply expect realtime digital experience as standard.

What Socket.IO is
Socket.IO is a library that enables low-latency, bi-directional and event-based communication between a client and a server.

It is built on top of the WebSocket protocol and provides additional guarantees, like fallback to HTTP and HTTPS long-polling or automatic reconnection. WebSocket is a communication protocol which provides a full-duplex and low-latency channel between the server and the browser.

There are several Socket.IO server implementations available:

• JavaScript (which can be run either on the browser, in Node.js or in React Native)
  • Installation steps
  • API
  • Source code
• Java: https://github.com/socketio/socket.io-client-java 
• C++: https://github.com/socketio/socket.io-client-cpp 
• Swift: https://github.com/socketio/socket.io-client-swift 
• Dart: https://github.com/rikulo/socket.io-client-dart 
• Python: https://github.com/miguelgrinberg/python-socketio 
• .Net: https://github.com/doghappy/socket.io-client-csharp 
• Rust: https://github.com/1c3t3a/rust-socketio 
• Kotlin: https://github.com/icerockdev/moko-socket-io

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What Socket.IO is not

Although Socket.IO indeed uses WebSocket for transport when possible, it adds additional metadata to each packet. That is why a WebSocket client will not be able to successfully connect to a Socket.IO server, and a Socket.IO client will not be able to connect to a plain WebSocket server either.

Reliability

Connections are established even in the presence of: 

• proxies and load balancers.
• personal firewall and antivirus software.

For this purpose, it relies on Engine.IO, which first establishes a long-polling connection, then tries to upgrade to better transports that are “tested” on the side, like WebSocket. Please see the Goals section for more information.

Auto-reconnection support
Unless instructed, otherwise a disconnected client will try to reconnect forever, until the server is available again. Please see the available reconnection options here.

Disconnection detection
A heartbeat mechanism is implemented at the Engine.IO level, allowing both the server and the client to know when the other one is not responding anymore.

That functionality is achieved with timers set on both the server and the client, with timeout values (the pingInterval and pingTimeout parameters) shared during the connection handshake. Those timers require any subsequent client calls to be directed to the same server, hence the sticky-session requirement when using multiple nodes.

Binary support

Any serializable data structures can be emitted, including:

• ArrayBuffer and Blob in the browser
• ArrayBuffer and Buffer in Node.js

Let’s conclude
This module provides an easy and reliable way to set up a WebRTC connection between peers, and communicates using events (the socket.io-protocol). Socket.IO is used to transport signaling data; and as a fallback for clients where WebRTC PeerConnection is not supported.

Well, that’s how to integrate socket IO on many platforms . The package made it all easy. Thank you for reading, give it a clap or buy me a coffee!

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