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On the other hand, PubNub is a globally distributed data stream network, enabling you to deliver data in 1/10 of a second or less to anywhere on Earth, securely and reliably.
As we said earlier, Socket.IO is a framework that enables you to open and maintain a socket connection and stream data bidirectionally, and provides some pretty great and easy-to-use design patterns.
However, building out a Socket.IO application requires you to host and maintain your own cluster of servers. Building a Socket.IO application on top of PubNub removes the need to operate and run your own server cluster.
Essentially, PubNub removes the need for a server backend. You can do some pretty cool real-time things with Socket.IO, but as your app user base grows, deploying and scaling your real-time backend become important considerations. That’s where PubNub comes in.
Socket.IO is great for establishing a connection and streaming real-time data. But in addition to data streaming, PubNub offers a number of other real-time “building blocks” that can be used to enhance your open socket connection.
Socket.IO, like other open source real-time libraries and frameworks, can provide a selection of these real-time features. However, scaling and deployment is where you may run into roadblocks. Will your app scale to thousands of users and devices all connected simultaneously?
PubNub is able to deliver real-time services on top of real-time protocols and frameworks like Socket.IO, WebSockets, and SignalR, while solving the costly and complex backend challenges for real-time functionality. Where Socket.IO deals with real-time data streaming, it requires you to configure and maintain your own backend. In several of my build vs buy discussions with PubNub customers, development teams began trying to build out their own real-time infrastructure, but soon realized the daunting challenge of doing so.
The PubNub Socket.IO SDK is designed for people who started building their application with Socket.IO, but want to migrate to PubNub. There is no requirement to use Socket.IO library if you are starting with PubNub first.
Socket.IO allows you to emit and receive custom events. Reserved events are: connect, message, disconnect, reconnect, ping, join and leave.
Sending and receiving events:
Whether you’re early in the development stage or ready to deploy your real-time application, PubNub can be easily integrated to ensure scale, reliability and security. Need help or have additional questions? Feel free to reach out to email@example.com, and we’ll get back to you right away!
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