PTTL

Return the expiration in milliseconds of a key.

Arguments

key · str · required

The key

Response

The number of milliseconds until this expires, negative if the key does not exist or does not have an expiration set.

Example

redis.set("key1", "Hello")

assert redis.pttl("key1") == -1

redis.expire("key1", 1000)

assert redis.pttl("key1") > 0

redis.persist("key1")

assert redis.pttl("key1") == -1