What are we going to talk about in this blog?In this blog, I shall introduce you to the power of WebSockets – a new technology providing bidirectional, full-duplex communication channels over a single TCP socket, solving most of the issues faced in real time communication. What’s in it for me?I have heard a lot of people assuming that HTML5 just deals with UI components and has nothing for programmers. This article puts this apprehension to rest.Is it really worth it? Real-time applications such as stock trading, banking, financial applications, online gaming, gambling, etc. need very reliable and high performance systems. Imagine you playing an online poker game on Facebook and waiting for the other player to finish their turn. It is, at times, frustrating just to wait for your turn as the communication is not fast enough and even though it is nearly happening in real time, you can still feel the delay. The above example is not that critical, but imagine the delay in stock trading, banking, financial applications, currency exchanges, etc. To cite another example, the Indian currency exchange rate changes 10 to 15 times in a minute. Even a small delay could be crucial. Anatomy of HTTPHTTP, which is widely used, is only half duplex, i.e., the data can flow only in one direction at a given time, thereby making real time communication difficult. Also, each request and response has header information which adds to the network traffic. To find out the HTTP request and response headers, you can use an application like the Live HTTP Headers add-on in the Firefox browser and then see the results. There is a lot of unnecessary HTTP request and response header information overhead, at times, as much as 2000 bytes. Read more: Xoriant
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