Arguments
Response
The number of seconds until this expires, negative if the key does not exist or does not have an expiration set.
# Get the TTL of a key
redis.set("my-key", "value")
assert redis.ttl("my-key") == -1
redis.expire("my-key", 10)
assert redis.ttl("my-key") > 0
# Non existent key
assert redis.ttl("non-existent-key") == -2
