Proxy support

[tomchristie]

I'd assume this is probably currently broken, but haven't looked into it yet.

Questions:

• Can anyone confirm if it is currently broken?
• Where does the error occur if so?
• What API in requests do we need to be honoring?
• Where does requests handle proxy connections?

[oldani]

I will check this out.

[blueyed]

It does not work currently.
It gets passed into requests_async.adapters.send, but is not used there.

It looks like passing in a sock with a configured proxy (sock.set_proxy) to create_connection might be a solution.

[cmeadows]

Now with the updated httpcore version, is this on the docket to be added?

[tomchristie]

In due course yup.

[cmeadows]

Great! I’m not too terribly familiar with the codebase of httpcore or requests but more than happy to contribute if needed!

[tomchristie]

Closing this one off, in favour of encode/httpx#36, since the work will actually be within http3.