Concepts
Provider capabilities
Detect optional list, verification, certificate, apex, and wildcard behavior.
if (domains.capabilities.explicitVerification) {
await domains.verify("app.customer.com");
}Basic add, get, refresh, and remove do not require capability checks. Calling an unsupported optional operation throws UNSUPPORTED_OPERATION with the provider ID.
createSubdomainClient exposes the same wildcard check as supportsWildcard. Its provisionWildcard methods fail with UNSUPPORTED_OPERATION before calling a provider that cannot attach wildcard hostnames.
Read next: Provider overview.