Redis Expire Command

Redis key

The Redis Expire command is used to set the expiration time of a key. After the key expires, it will no longer be available. The unit is in seconds.

Syntax

The basic syntax of the redis Expire command is as follows:

redis 127.0.0.1:6379> Expire KEY_NAME TIME_IN_SECONDS

Available Versions

>= 1.0.0

Return Value

Returns 1 on successful setting. Returns 0 when the key does not exist or the expiration time cannot be set for the key (for example, if you try to update the expiration time of a key in Redis versions lower than 2.1.3).

Example

First create a key and assign a value:

redis 127.0.0.1:6379> SET runooobkey redis
OK

Set an expiration time for the key:

redis 127.0.0.1:6379> EXPIRE runooobkey 60
(integer) 1

In the above example, we set the expiration time of the key runooobkey to 1 minute, and the key will be automatically deleted after 1 minute.

Redis key

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