Shared API

Hook

Priority-ordered event dispatcher for every Roblox built-in signal plus a custom event bus. Multiple systems can subscribe to the same event and run in a guaranteed order — no more arbitrary connection ordering.

Import local Hook = RoExpress.Hook

core

Subscribing

Register handlers with a priority number or named tier. Named handlers can be removed later. Run once and auto-remove with Hook.Once.

Hook() · Hook.Once · Hook.Off · Hook.Clear · Hook.Has →

concept

Priority System

Lower number runs first. Named aliases — first, high, normal, low, last — map to 0–100. Multiple handlers at the same priority run in registration order.

0 → 25 → 50 → 75 → 100 →

reference

Signal Catalog

All ~60 mapped Roblox signals across Players, RunService, UserInputService, MarketplaceService, CollectionService, and more.

PlayerAdded · Heartbeat · InputBegan · TagAdded:tag · … →

events

Custom Events

Any key not in the signal catalog is a custom event. Fire it from anywhere, subscribe from anywhere — same priority and id system as built-in signals.

Hook.Fire · Hook() · Hook.Has →

Hook

See also