Identify requestor which call Internal Azure APIM through External Azure Gateway

Question

I do have external Azure Gateway which allows calling internal API services through internal (not public) APIM.

For billing purpose, I need to know who exactly (IP or some type of IDs) make a call.

I thought that could get this information from APIM logs.

I've tried to send custom header, with some sort of IDs, during API call - but I could not find any meaningful information in APIM diagnostic logs.

Could you please share your thoughts and suggestions, how to achieve the above goal?

Answer 1

You can know the requestor by pulling reports of that particular API management using rest API. Here you get option to filter the reports by User and User-Ids

reference: https://learn.microsoft.com/en-us/rest/api/apimanagement/current-ga/reports/list-by-user