SETEX
Syntax
SETEX key seconds value
Time complexity: O(1)
ACL categories: @write, @string, @slow
Set key
to hold the string value
and set key
to timeout after a given
number of seconds.
This command is equivalent to executing the following commands:
SET mykey value
EXPIRE mykey seconds
SETEX
is atomic, and can be reproduced by using the previous two commands
inside an MULTI
/ EXEC
block.
It is provided as a faster alternative to the given sequence of operations,
because this operation is very common when Redis is used as a cache.
An error is returned when seconds
is invalid.
The expiration time can be accessed with the FIELDTTL
command.
Return
Examples
dragonfly> SETEX mykey 10 "Hello"
OK
dragonfly> TTL mykey
(integer) 10
dragonfly> GET mykey
"Hello"