BRPOPLPUSH source destination timeout

BRPOPLPUSH is the blocking variant of RPOPLPUSH. When source contains elements, this command behaves exactly like RPOPLPUSH. When used inside a MULTI/EXEC block, this command behaves exactly like RPOPLPUSH. When source is empty, Redis will block the connection until another client pushes to it or until timeout is reached. A timeout of zero can be used to block indefinitely.

See RPOPLPUSH for more information.

*Return value

Bulk string reply: the element being popped from source and pushed to destination. If timeout is reached, a Null reply is returned.

*Pattern: Reliable queue

Please see the pattern description in the RPOPLPUSH documentation.

*Pattern: Circular list

Please see the pattern description in the RPOPLPUSH documentation.

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