How to send a http2 request headers with python socket

Question

In python:

the http/1.1 request header is :

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

request_header = 'GET {} HTTP/1.1\r\nhost: {}\r\nConnection: close\r\n' \
          'Accept-Encoding: gzip,deflate\r\n\r\n'.format(path, host)

s = s.send(request_header.encode())

In my question is , what does the http/2 request_header like?

anyone can help me !! thanks

I've been looking at a lot of resources, but there are no examples of how to create HTTP/2 requests using sockets

The part about sockets is superfluous. A socket just sends arbitrary bytes from one end to another. It doesn't care what those bytes are. Your question is how to format an HTTP/2 request; you can read the specification here: https://datatracker.ietf.org/doc/html/rfc7540 — Iguananaut, Nov 15 '22 at 14:06

score 0 · Answer 1 · answered Nov 15 '22 at 13:45

0

Well if you are interested in stable implementation you could take a look at h2. They have an example on plain sockets. If you are interested in educational purposes poke around with tcpdump / wireshark (wshrk http2 wiki page). So you can read how the actual communication looks like in a propper tool, and implement your own version based on the example.

answered Nov 15 '22 at 13:45

Eugene Yalansky

124
4

You could also just curl example with http2 and verbose flags `curl --http2 nghttp2.org/robots.txt --verbose` and take a look at the output. – Eugene Yalansky Nov 15 '22 at 13:47
Thank you. This h2 example is exactly what I was looking for – Yin Lei Nov 16 '22 at 02:19

How to send a http2 request headers with python socket

1 Answers1