Variant

error-code

Lookup error codes.

variant error-code {
  access-denied,
  invalid-argument,
  name-unresolvable,
  temporary-resolver-failure,
  permanent-resolver-failure,
  other(option<string>),
}

Cases

Case	Payload	Description
access-denied	—	Access denied.
invalid-argument	—	`name` is a syntactically invalid domain name or IP address.
name-unresolvable	—	Name does not exist or has no suitable associated IP addresses.
temporary-resolver-failure	—	A temporary failure in name resolution occurred.
permanent-resolver-failure	—	A permanent failure in name resolution occurred.
other	option<string>	A catch-all for errors not captured by the existing variants. Implementations can use this to extend the error type without breaking existing code.