EXPIRE - Expire Key Value Pairs in Redis

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When you want to expire a key value pair set in the Redis database, you can use the EXPIRE command and pass it the number of seconds that for when you want it to expire.

redis> SET mykey "Hello"
redis> EXPIRE mykey 10
(integer) 1
redis> TTL mykey
(integer) 10
redis> SET mykey "Hello World"
redis> TTL mykey
(integer) -1