How to test SNI between client and APIGEE by using CURL as client.
I think it doesn't matter what the server endpoint is.
If you want to TEST SNI via curl, then this stackoverflow answer will help you.
You can also test with openssl.
openssl s_client -connect api.hostname.com:443 -servername api.hostname.com
This will show you the SNI negotiation, and the results.
Just for reference..Good apigee documentation on SNI
https://docs.apigee.com/api-platform/system-administration/using-sni-edge