I have a Function with AuthorizationLevel set to Function. When I call it from Postman with no key, I get a 401 Unauthorized. Now, if I use APIM to
font my Azure Function, with no authentication in APIM, it will quite happily call my Function with now key and it succeeds. I was just wondering why this is? I would have expected to have to set which key to use (in APIM) when it calls my Function.
Any insight would be great.