What is HTTP Parser, where it is used, what does it do [closed] - c

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I was reading C code at:- https://github.com/joyent/http-parser
. But I don't know what is the meaning of the HTTP Parser . Can you please explain its meaning probably with example so I can contribute to this project.

I think the README.md already explained it very well:
https://github.com/joyent/http-parser/blob/master/README.md

HTTP Parser can be employed in the browser as well as in the server and it extracts the following information from HTTP messages:
1 Header fields and values
2 Content-Length
3 Request method
4 Response status code
5 Transfer-Encoding
6 HTTP version
7 Request URL
8 Message body

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