Add an exclude list in the OpenTelemetryMiddleware

[axel584]

Describe the solution you'd like
I use bottle as web framework and the WSGI Instrumentation to trace my app. It's work fine, but I can't config an exclude list (as for flask or fastAPI).

Describe alternatives you've considered
I thought about making a version of the instrumentation specifically for Bottle, but I think all WSGI frameworks might need to pass an exclusion list to the constructor.I

Thank you

[andy-edvalson]

I believe this might already be present! I needed the same thing for our Quart App and found it already there. I just submitted a PR to add this functionality to the docs

#2407

[andy-edvalson]

Oops, I misread that you are using WSGI and not ASGI. ASGI has the param in the constructor, but WSGI does not. It looks easy enough to lift from asgi though!

[xmo-odoo]

Would definitely be useful: I've a situation where some of the routes are normal HTTP endpoints but others are sub-protocols, for the latter I get both an HTTP level and a protocol level span, the former of which is not very useful (it's the same thing but less informative).

Either a blacklist or the ability for the request_hook to skip instrumentation (by returning a magic value) would work.