HTTL

HTTL key FIELDS numfields field [field ...]

Available since:

7.4.0

Time complexity:

O(N) where N is the number of specified fields

ACL categories:

@read, @hash, @fast,

Returns the remaining TTL (time to live) of a hash key's field(s) that have a set expiration. This introspection capability allows you to check how many seconds a given hash field will continue to be part of the hash key.

See also the HPTTL command that returns the same information with millisecond resolution.

Example

redis> HTTL no-key FIELDS 3 field1 field2 field3
(nil)
redis> HSET mykey field1 "hello" field2 "world"
(integer) 2
redis> HEXPIRE mykey 300 FIELDS 2 field1 field3
1) (integer) 1
2) (integer) -2
redis> HTTL mykey FIELDS 3 field1 field2 field3
1) (integer) 283
2) (integer) -1
3) (integer) -2

RESP2/RESP3 Reply

• Array reply. For each field:
  • Integer reply: -2 if no such field exists in the provided hash key, or the provided key does not exist.
  • Integer reply: -1 if the field exists but has no associated expiration set.
  • Integer reply: the TTL in seconds.