How do I debug HTTPS post requests from my commandline program?

I am trying to write a Python program that POSTs a build request to a Jenkins server over HTTPS. I have tried PycURL, which works well, but am now trying to replace that with standard library facilities. The revised program receives a 404 response from the server however, so I would like to inspect both versions of the program's actual POST requests to the server (with and without PycURL) to see what's different.

Which tool can I use to capture my program's POST requests a开发者_运维知识库nd analyze them?

If you can specify a proxy with your application then take a look at Fiddler. It will man in the middle HTTPS requests and give you a good overview of exactly whats going in and out. As also mentioned WireShark may be of use to you if you cannot use a proxy as it will capture the raw traffic but it can be fiddly to use.

You can use wireshark.

But wireshark gives dumps overwhelming amount of data.

So choose any packet in the dump.

Right click and Follow Stream.

Read good tutorial here.

Use the program to dump the traffic tcpdump or WireShark