Hey everybody, first post here :slight_smile: I am trying to monitor our GraphQL (Absinthe) service’s entity resolution, to the granularity of a field. That means, I want to be able to know which fields were being resolved in each entity - the purpose is to know when a field is not being used anym…

Hi @nadavdav :wave: And welcome to the community! If I understand correctly you want the “resolution path” on on each field that was resolved. absinthe.resolved.field event might be the one you need. :telemetry.attach_many( :resolved_paths, [ [:absinthe, :resolve, :field, :stop] ], f…

Just small thing - you should not use anonymous functions as telemetry handlers outside debugging .

Hey @RudManusachi and @hauleth . thank you for the response! I gave it a try and I still only get the path of the resolver, but not the field. It kinda makes sense since the resolver is returning an object, and there isn’t any place to “hook” this reporting when reading the object. Is it possible…

Huh, indeed! Fields are not included in path. However, looks like we can dig that info out from the resolution struct! (metadata.resolution.definition.selections is a list of fields requested to be resolved) Don’t know if this is the most optimal way, but seems to be doing the trick: :telemetry.at…

Monitoring GraphQL fields with telemetry

Questions & Help Questions

nadavdav August 10, 2021, 2:25pm 6

Thank you! I’ll try that soon and hopeful come back with positive results!