Make it work with Async Hooks

[kjarmicki]

This is the reimplementation of #404 using AsyncResource instead of promise wrappers, as @Qard advised.
Tests were taken in their entirety from the original PR.

[edingroot]

May I know why this PR was closed?
I have the same problem that got undefined context created by AsyncLocalStorage when the request body is not empty (body-parser is called).

[kjarmicki]

@edingroot body-parser is using raw-body and on-finished which are the lowest level modules that could have the fix applied and proliferate upwards from there, so it made sense to introduce it at the level of these modules.
I'm happy to say that there PRs were already merged 🙂 see stream-utils/raw-body#71 and jshttp/on-finished#36

I'm not sure when there's going to be an Express update that transitively pulls these changes in, but if you're in a hurry I think you could tackle it with npm overrides or patch-package.

[dougwilson]

I am working on integrating them in to the very next body-parser release. There was a reported potential security issue with body-parser I am investigating is the only hold up. I pushed up the necessary changes, but rolled them back in anticipation of a patch release if this turns out to indeed be a security issue.

Everything should be done this week.

[edingroot]

Got it! Thank you all for the great work :)

[dougwilson]

The changes are staged on master now if anyone wants to test, but will be released in the coming days :) !