Opentelemetry-js: Question about automatic metrics collection.

[naseemkullah]

• [ ] This only affects the JavaScript OpenTelemetry library
• [x] This may affect other libraries, but I would like to get opinions here first

Regarding automatic metrics collection for libs...

will outgoing requests be measured as well as incoming requests? I presume for express, only incoming requests would be measured and errors counted, whereas for axios or request type libs, outgoing requests/errors would be measured. Is that right??

Whereas the http plugin would measure both incoming and outgoing?

[dyladan]

This is all yet to be decided by the spec I think, but the simple answer is that we can collect as many metrics as we want as long as they are properly namespaced.

[vmarchaud]

Indeed we can't speak about OT specs but for your information, OC specs required to have different metrics for incoming/outgoing requests (see node impl)

[dyladan]

@naseemkullah if your question is answered can you close this issue? If not, then please let us know.

[naseemkullah]

It is, thanks!!