sb.ingress() lists a sandbox’s exposures; nv.ingress.delete(id) removes one.
Anyone with the URL can reach the service — your application must provide any
required authentication.
Sharp edges
The edge speaks HTTP/1.1 and h2 only (HTTP/1.0 gets426).
Across archive()/unarchive() the URL can 404 for a moment while the route
follows the new placement, and processes do not survive archiving — restart
your server after unarchive(). A deleted sandbox’s URL can take ~30 s to fail
fast. Exposing an archived sandbox is allowed; the mapping goes live on
unarchive().