The fully qualified host component of the domain name of the identity provider.

File: AWS.STS.pas 

Namespace: AWS.STS 

Module: Appercept AWS SDK for Delphi 

Only required for OAuth 2.0 access tokens. Currently, the only supported identity providers are www.amazon.com and graph.facebook.com. Do not include URL schemes and port numbers. Do not specify this value for OpenID Connect ID tokens.