endpoint-id is a 20-character opaque token assigned the first time a Service deploys in a project. It is stable across redeploys of that Service: subsequent versions reuse the same id, so clients holding the URL stay connected.
Custom domains, preview URLs, and per-environment endpoints are not part of the platform today.Concepts
Endpoints
How requests reach a deployed Service.
Every deployed Service has one public URL of the form:
The

