Always set 'Content-Type': 'application/octet-stream'?

[yjqiang]

I'm not sure about this but I think aiohttp should set Content-Type withapplication/x-www-form-urlencoded?

import asyncio

import aiohttp


async def main():
    async with aiohttp.ClientSession() as ss:
        async with ss.request('POST', 'https://www.bilibili.com', params="abc=322") as rsp:
            print(rsp.request_info)

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

# RequestInfo(url=URL('https://www.bilibili.com/?abc=322'), method='POST', headers=<CIMultiDictProxy('Host': 'www.bilibili.com', 'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'User-Agent': 'Python/3.8 aiohttp/3.6.2', 'Content-Length': '0', 'Content-Type': 'application/octet-stream')>, real_url=URL('https://www.bilibili.com/?abc=322'))

[hh-h]

There's no body in your request, so there's no way to guess the media type.
see https://www.w3.org/Protocols/rfc2616/rfc2616-sec7.html#sec7.2.1

also, requests doesn't set content-type at all

In [5]: r = requests.post('https://www.bilibili.com', params="abc=322")
In [6]: r.request.headers
Out[6]: {'User-Agent': 'python-requests/2.22.0', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive', 'Content-Length': '0'}

[yjqiang]

@hh-h Yeah, I tried this with requests. Maybe I'm wrong, so do you know when we should set application/x-www-form-urlencoded?

[hh-h]

What do you mean by "when we should set"? It's client logic, so feel free to set it whenever you want :)

[yjqiang]

What do you mean by "when we should set"? It's client logic, so feel free to set it whenever you want :)

I mean following the guide like RFC, never mind, I found data and params in aiohttp. And I got this, https://lukasa.co.uk/2013/07/Requests_The_Difference_Between_Params_And_Data/

[yjqiang]

@hh-h Last question, is there any way to print the raw HTTP request? Like requests? https://stackoverflow.com/questions/20658572/python-requests-print-entire-http-request-raw

[hh-h]

If you want to use library I suggest to dig into docs, it is really helpful :)
https://aiohttp.readthedocs.io/en/stable/client.html

[yjqiang]

If you want to use library I suggest to dig into docs, it is really helpful :)
https://aiohttp.readthedocs.io/en/stable/client.html

I mean I checked this before, and I didn’t find the answer. So …

[hh-h]

What do you want to achieve?
RequestInfo has all the information about the request, except the body I think. Maybe this will help https://aiohttp.readthedocs.io/en/stable/client_advanced.html#client-tracing too.

[yjqiang]

What do you want to achieve?

“To see what ultimately is constructed from HTTP request?”

[hh-h]

I'm afraid there's no easy way to view the body of the request (like on SO) without overwriting connector or/and request_class. Latter haven't mentioned in docs tho, see https://aiohttp.readthedocs.io/en/stable/client_reference.html#aiohttp.ClientSession

[yjqiang]

I'm afraid there's no easy way to view the body of the request (like on SO) without overwriting connector or/and request_class. Latter haven't mentioned in docs tho, see https://aiohttp.readthedocs.io/en/stable/client_reference.html#aiohttp.ClientSession

Yeah. And I also find this #2516 . So I think I can close this issue now.
Thanks a lot for your patience. Thank you.