How to extend the ExpressInstrumentation patch and unpatch for additional functionality.

[gmreads]

Hi,

I need to add functionality to the init method, specifically to the patch and unpatch methods of ExpressNodeModuleDefinition, any ideas on how might I do this cleanly ?
If the base class itself had something like

init() {
 new InstrumentationNodeModuleDefinition(..args, this._patch(), this._unpatch()
}

_patch(){
 // do stuff here
}
_unpatch()
{
// do stuff here
}

Then in my child class I could have just over-ridden the _patch and _unpatch methods like this

_patch(){
  super._patch()
 // do my work here
}

Happy to raise a PR for the same.

In-fact to be specific I am patching the send method of response to add request/response bodies in the spans.
@dyladan Is this something that be merged upstream ?

PS: I am new to javascript/opentelemtry apologies if it's quite a stupid question.

[gmreads]

This doesn't belong here. I have raised an issue in relevant repo here.
open-telemetry/opentelemetry-js-contrib#1369