BF.CARD

BF.CARD returns how many items have been added to the Bloom filter at key. Only adds that reported the item as new are counted, so an item added twice counts once (and a new item wrongly reported as present is not counted).

Return value

Case	RESP2	RESP3
Filter exists	Integer: items added	Integer
Key does not exist	Integer 0	Integer 0

WRONGTYPE if the key holds another type.

Examples

127.0.0.1:6379> BF.MADD visitors alice bob alice
1) (integer) 1
2) (integer) 1
3) (integer) 0
127.0.0.1:6379> BF.CARD visitors
(integer) 2
127.0.0.1:6379> BF.CARD nosuchfilter
(integer) 0

Compatibility

Same as BF.CARD in RedisBloom.

See also

BF.INFO, BF.ADD