What is http/2 protocol ?

Although the HTTP/1.1 protocol has been around for a while, more web services have begun to use the more current HTTP/2 protocol in recent years. In this article, we will discuss about http/2 protocol and in next upcoming article we will discuss how to achieve realtime using http/2 push or http call.

What is http/2 ?

The second iteration of the HTTP protocol, known as HTTP/2, aims to address many of the problems with the previous HTTP version in order to speed up, simplify, and strengthen applications.

HTTP/2's main objectives are:

• Enable multiplexing of requests and responses
• Compressing the header
• Compatibility with the HTTP/1.1 standard's specified methods, status codes, URIs, and header parameters.
• Optimized request prioritising ensures that loading is as quick as possible for the best user experience.
• Availability of server-side push
• Backwards compatibility on the server side, ensuring that servers can continue to serve clients solely capable of using HTTP/1.1 without any modifications.
• Converting HTTP/1.1 from a text-based protocol to a binary protocol.

HTTP/2 Features

• Binary: Using 1s and 0s instead of text for commands

• Multiplex: Allows for the simultaneous transmission of several requests and responses.

• Compression: To improve efficiency, compresses headers that have already been requested.

• Stream prioritisation: This enables the simultaneous interchange of several streams.

• Server push: Before a request is made, the server may transmit any additional information required.

• Enhanced security is provided by HTTP/2, which supports encrypted connections.