Distributed Systems, Nodejs, Node, Typescript, JavaScript.
export async function order(productId: number): Promise<void> { setHandler(deliveredSignal, () => { if (state === 'Picked up') { state = 'Delivered' deliveredAt = new Date() } }) // … await sendPushNotification('🚗 Order picked up') const notDeliveredInTime = !(await condition(() => state ===