RPOP

RPOP removes and returns the last element of the list stored at key. With count, it removes and returns up to count elements from the tail, last element first. When the list becomes empty, the key is deleted.

count must be a non-negative integer. A count of 0 returns an empty array for an existing list. To wait for an element instead of getting nil, use BRPOP.

Return value

Case	RESP2	RESP3
No count, list exists	Bulk string: the popped element	Same
No count, key does not exist	Nil bulk string	Null
With count, list exists	Array of the popped elements	Same
With count, key does not exist	Nil array	Null

Errors:

• WRONGTYPE if key holds a value that is not a list.
• ERR value is out of range, must be positive if count is negative or not an integer.

Examples

127.0.0.1:6379> RPUSH queue a b c d
(integer) 4
127.0.0.1:6379> RPOP queue
"d"
127.0.0.1:6379> RPOP queue 2
1) "c"
2) "b"

Compatibility

Same as Redis 7.4 and Valkey 8.

See also

LPOP, LMPOP, BRPOP, RPUSH, LMOVE