expirationPolicy property
A policy that specifies the conditions for this subscription's expiration.
A subscription is considered active as long as any connected subscriber is
successfully consuming messages from the subscription or is issuing
operations on the subscription. If expiration_policy is not set, a
default policy with ttl of 31 days will be used. The minimum allowed
value for expiration_policy.ttl is 1 day. If expiration_policy is set,
but expiration_policy.ttl is not set, the subscription never expires.
Optional.
Implementation
ExpirationPolicy? expirationPolicy;