@metatell/bot-core

Core services and shared types for advanced metatell bot integrations.

Most bot projects should use @metatell/bot-sdk. Use this package directly when you need lower-level services, typed NAF helpers, or custom service composition.

Requirements

• Node.js 20 or later. Node.js 24 is recommended and is the version used in CI.
• TypeScript 5 or later for TypeScript projects.

Install

npm install @metatell/bot-core
# or
pnpm add @metatell/bot-core
# or
yarn add @metatell/bot-core

Usage

import { AvatarController, CoreServiceFactory, EventBus } from '@metatell/bot-core'

const factory = new CoreServiceFactory({
  serverUrl: 'wss://metatell.app',
  hubUrl: 'https://metatell.app',
  hubId: 'your-room-id',
  profile: {
    displayName: 'MyBot',
    avatarId: 'your-avatar-id',
  },
  authToken: process.env.METATELL_TOKEN,
})

const eventBus = factory.getService(EventBus)
const avatarController = factory.getService(AvatarController)
const container = factory.getContainer()

@metatell/bot-core also exports createMetatellClient(), the implementation behind the high-level client in @metatell/bot-sdk.

Services

EventBus

Publishes and subscribes to SDK events. SystemEvents lists the built-in event names.

eventBus.on('custom.event', (data) => {
  console.log('event received:', data)
})

eventBus.emit('custom.event', { message: 'Hello' })

AvatarController

Controls bot avatar state, movement, and animations. Connect through ConnectionManager before spawning.

import { PresetAnimationId } from '@metatell/bot-core'

await avatarController.spawn('your-avatar-id')
await avatarController.move({ x: 10, y: 0, z: 5 })
await avatarController.playAnimation(PresetAnimationId.WALKING, { loop: true })
await avatarController.stopAnimation()

Other Services

• ConnectionManager: room WebSocket connection and join state.
• AnimationService: avatar animation lookup and playback helpers.
• MessageService: chat and NAF/NAFR message send/receive helpers.
• PresenceManager: room user presence tracking.
• UserAvatarManager: other users' avatar positions from NAF updates.
• OrganizationService: organization and organization avatar lookup.
• AuthenticationService: room authentication helpers.
• ConfigurationProvider: SDK configuration access.
• AppSettings: debug mode and log level.

Logging

Core services log through the provider registered with registerLoggerProvider() from this package. DefaultLoggerProvider is used when none is registered.

License

MIT