BLPOP

v0.1.0-beta.1

Removes a list's leftmost element, waiting up to a timeout when necessary.

Lists · Example verified

Syntax covered here

BLPOP key timeout-seconds

The cases verify an immediate pop and a null result when a missing list remains unavailable through a fractional-second timeout.

Tested example & replies

Requests below run in order against an empty database. Each connection authenticates with the fixture password first. Quoted values are strings; null is a nil reply; arrays preserve RESP order.

# connection: default
> RPUSH queue a b c
3
# connection: default
> BLPOP queue 0.1
["queue","a"]
# connection: default
> BLPOP missing-list 0.1
null