Get OIDC Discovery Document

A fresh UUID that you generate for this request. It is how you and the gateway correlate a call with its callback and with a support ticket, so log it. Reusing one across requests makes both impossible.

The current time in ISO 8601 UTC, with milliseconds and the Z suffix. The gateway rejects a request whose timestamp has drifted too far from its own clock, so take this from a synchronised clock rather than from a local one.

OpenID Connect configuration