@ap/event-bus

Lightweight, zero-dependency typed event emitter.

Features

• ✅ Fully typed events via generic EventMap
• ✅ Wildcard support (*, **)
• ✅ Replay buffer for late joiners
• ✅ Async handler support
• ✅ One-time listeners (once)
• ✅ Namespace support

Install

npm install @ap/event-bus

Quick Start

import { createEventBus } from '@ap/event-bus'

interface MyEvents {
  'user:login': { id: string; name: string }
  'app:ready': void
}

const bus = createEventBus<MyEvents>()

bus.on('user:login', (user) => {
  console.log('User logged in:', user.name)
})

bus.emit('user:login', { id: '123', name: 'Gordon' })

License

MIT