post https://{application_vanity_domain}/api/v1/oauth2/authorization-requests/introspect
When the Authorize Endpoint returns a response that returns a redirect to a login page, an authorization request JWT will be created (composed of the original authorization request parameters) and appended to the URL using the req
query parameter. This API can be used to introspect the authorization request JWT to ensure that it's valid and also extract its claims.