Web Sockets Implementation

Web Sockets occupy a key role not only in the web but also in the mobile industry. The importance of Web Sockets is given below.

Web Sockets as the name indicates, are related to the web. Web consists of a bunch of techniques for some browsers; it is a broad communication platform for vast number of devices, including desktop computers, laptops, tablets and smart phones.

HTML5 app that utilizes Web Sockets will work on any HTML5 enabled web browser.

Web socket is supported in the mainstream operating systems. All key players in the mobile industry provide Web Socket APIs in own native apps.

Web sockets are said to be a full duplex communication. The approach of Web Sockets works well for certain categories of web application such as chat room, where the updates from client as well as server are shared simultaneously.

Web Socket
Web Sockets, a part of the HTML5 specification, allow full duplex communication between
web pages and a remote host. The protocol is designed to achieve the following benefits, which can be considered as the key points:-

Reduce unnecessary network traffic and latency using full duplex through a single connection (instead of two).

Streaming through proxies and firewalls, with the support of upstream and downstream communication simultaneously.

Web
Web Socket connections are initiated via HTTP; HTTP servers typically interpret Web Socket handshakes as an Upgrade request.

Web Sockets can both be a complementary add-on to an existing HTTP environment and can provide the required infrastructure to add web functionality. It relies on more advanced, full duplex protocols that allow data to flow in both directions between client and server.

Functions of Web Sockets
Web Sockets provide a connection between the web server and a client such that both the parties can start sending the data.

The steps for establishing the connection of Web Socket are as follows.

The client establishes a connection through a process known as Web Socket handshake.

The process begins with the client sending a regular HTTP request to the server.

An Upgrade header is requested. In this request, it informs the server that request is
for Web Socket connection.

Web Socket URLs use the ws scheme. They are also used for secure Web Socket connections,
which are the equivalent to HTTPs.
Web Sockets Implementation Web Sockets Implementation Reviewed by Joseph Chikeleze on April 10, 2018 Rating: 5

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