HTTPX async node

[b4sus]

Follow up of the issue #95.

Please, pay attention to the verify/cert configuration, this is something I am not very familiar with nor could I test it.

Things to check:

• verify/cert configuration
• headers

[cla-checker-service]

💚 CLA has been signed

[pquentin]

@b4sus Wow, this is exciting! Thanks for working on this.

I'd like to set the expectations here by noting that this is a large change that will require multiple rounds of review, and that I will be slow because of the holidays season coming up. My goal is to have this merged by the end of January.

I haven't looked at the code in any meaningful way but I noticed it uses asyncio. However, I'd like to use anyio instead because it will get us Trio support for free, which is the main reason to support HTTPX for me.

Also, can you please sign the CLA?

Thanks again!

[pquentin]

The DefaultType | (float | None) syntax is only valid in Python 3.10 and above, unless you add from __future__ import annotations. But if we do that, we should do it in all files, by adding add_imports = "from __future__ import annotations" to our isort configuration here: https://github.com/elastic/elastic-transport-python/blob/main/setup.cfg and running pyupgrade. As an added bonus, this sounds like a nice way to get your first contribution in, so that I don't have to click "Approve and run" every time you make a change. (Maybe I can tinker with the GitHub settings to avoid that though.)

The other option is to stick to typing.Union.

[pquentin]

Are you OK if I submit some small changes to this branch myself?

[b4sus]

Of course, go for it.

[pquentin]

Could not help myself, this is turning into bigger changes. Hope that's still OK 🙈

[pquentin]

Thanks! This looks good to me now. I'm happy to merge if you are. 🎉