Capture metrics for every field being requested in a graphql query

[bizob2828]

Is your feature request related to a problem? Please describe.

As you maintain a graphql service you'll likely refactor and want to remove older fields. The Alerts team wants the ability to know every field requested per request so they know if a field is no longer being asked for so they can safely remove.

Feature Description

At the end of every request report metrics for every unique field being requested within a graphql query.

Additional context

We currently report scalars as resolve segments but this occurs for every single item in a request.

Priority

Please help us better understand this feature request by choosing a priority from the following options:
[Nice to Have, Really Want, Must Have, Blocker]

[bizob2828]

Metrics might not be the best solution but the idea is a customer wants to know when it is safe to remove a field within a graphql schema

[workato-integration]

https://issues.newrelic.com/browse/NEWRELIC-4472