HTTP/1.1 is the standard that is adopted by the web community. In recent times, HTTP/2 is becoming more popular because of its advantages. Some of the benefits of using HTTP/2 are as follows:
- Flow control between sender and receiver
- Better compression of HTTP headers
- Single TCP connection for bidirectional streaming
- Server push support for sending files on one TCP connection
- Support from all major browsers
The technical definition from Google about protocol buffers is as follows:
Protocol buffers are a flexible, efficient, automated mechanism for serializing structured data—think XML, but smaller, faster, and simpler. You define how you want your data to be structured once, then you can use the specially generated source code to easily write and read your structured data to and from a variety of data streams and using a variety of languages...
