Platform API to receive Datahub billing metrics

API's which report individual Microservice stats like /tenant/statistics/Summary (Link) should also provide custom Microservice metrics, as a child of the node /resources/usedBy/

Datahub introduces additional metrics required for billing, most importantly Offloading volume, Billed Offloading Volume, Query Volume, Billed Query Volume.

Those metrics are visible in the manifest of the Datahub microservice and are also queried by the frontend when checking statistics.

However, when the parent tenant wants to charge a child-tenant based on those metrics, there is currently no documented API to get this information.

Ideally, API's which report individual Microservice stats like /tenant/statistics/Summary (Link) should also provide custom Microservice metrics, as a child of the node /resources/usedBy/

Without such an API, it seems it's currently not possible to offer Datahub to a customer who wants to charge the usage of it to his sub-tenants in the same way he charges them for other resources (Storage, device-count, API-calls, MS CPU/Memory,...)