Method

Subscribe to $topic: Swerve::subscribe is how an application gets one.

Description#

public Subscription::__construct(
    string $topic,
    float $maxLag = 30.0,
    ?float $heartbeat = null
)

Parameters#

$topic string

The topic to receive

$maxLag float = 30.0

Seconds a message may wait before this subscriber reads it

$heartbeat ?float = null

Yield null when no message came for this many seconds