Hypertext Transfer Protocol – HTTP/2
To get an understanding of HTTP/2, one needs to have a fast and apparent conception regarding protocol considering the context the Hypertext Transfer Protocol – HTTP. It is said to be a mechanism utilised by Internet browsers to demand information from the web server which tends to display the pages on the screen of the device which is utilised.
HTTP/2 is considered to be an auxiliary in expressing HTTP on the wire though is not a ground-up alteration of the protocol. The methods of HTTP, status code and semantics tends to be equal and the same should be possible to use APIs as HTTP/1 x for representing the protocol.
Emphasis of the protocol is based on performance, end-user perceived latency, server resource usage and network. The main objective is to enable the use of an individual link from browsers to a Website. HTTP/2 earlier known as HTTP/2.0 is said to be a main revision of the HTTP network protocol which is utilised by the World Wide Webresulting from the former new SPDY protocol.
This had been established by Google. The working group http is, of Hypertext Transfer Protocol, wherein `bis’ is considered as `second’ of the Internet engineering Task force. HTTP/2 is considered to be the first latest version of HTTP as HTTP1.1 standardized in RFC 2068 in 1997.
Applications – Quicker/Simpler/Strong
HTTP/2 is inclined to make our applications quicker, simpler as well as strong. Moreover it also tends to open various completely new options for optimizing our applications and enhance performance.
The main purpose of HTTP/2 is to reduce latency by permitting full request and response, multiplexing, reduces protocol overhead through well-organized density of HTTP header fields. It also adds to the support for request prioritization and server push and in order to implement these essentials, there is a huge supporting cast of the other protocol augmentations like new flow control, upgrade mechanisms, error handling.
However these are said to be the most important features which all web developers need to comprehend and leverage in their applications. The application semantics of HTTP in any way is not modified by HTTP/2.
All the essential concepts like HTTP methods, URIs, status codes as well as header fields tend to stay in place. On the contrary HTTP/2 is said to modify how the data gets formatted and transported between the server and the client. Here both are inclined to handle the complete process and hides the overall complexity from our application within the fresh framing layer.
HTTP/2 Enhanced Performance/Accessibility of New Abilities
The consequence is that all the prevailing applications can be delivered without modification. HTTP/2 has introduced a new binary framing layer to accomplish the performance goals set by the HTTP Working Group, which is not backward compatible with previous HTTP/1.x servers and clients, therefore the main protocol version augmentation to HTTP/2.
Unless one is executing a web server or a custom client by functioning with raw TCP sockets, the difference will not be noticed and all the new and low level framing will be performed by the client and server on behalf of the user. The only noticeable difference observed would be the enhanced performance together with the accessibility of new abilities such as request prioritization, server push and flow control.