Extension: Auto-close span on post

[cedricziel]

Is your feature request related to a problem?

Declaring post hooks becomes repetitive. - Between pre and post hooks the same steps have to be performed:

pre: create span, inject into context

post: get span from context, close scope..

Describe the solution you'd like

An alternative API for span centric instrumentation that automatically creates a span which is automatically created, takes failure scenarios into account and closes the span once post-call

Describe alternatives you've considered
Which alternative solutions or features have you considered?

Additional context
Add any other context about the feature request here.