@flippercloud/flipper

A TypeScript/JavaScript implementation of Flipper - a feature flagging library for controlling features and behavior.

Installation

bun add @flippercloud/flipper

Quick usage

import Flipper from '@flippercloud/flipper'
import { MemoryAdapter } from '@flippercloud/flipper'

const adapter = new MemoryAdapter()
const flipper = new Flipper(adapter)

// Enable a feature
await flipper.enable('new-ui')

// Check if a feature is enabled
const isEnabled = await flipper.isEnabled('new-ui')
console.log(isEnabled) // true

// Enable for specific actors
await flipper.enableActor('premium-feature', 'user-123')

// Check if enabled for a specific actor
const isPremiumEnabled = await flipper.isEnabledFor('premium-feature', 'user-123')
console.log(isPremiumEnabled) // true

Docs

Looking for configuration, adapters, advanced usage, and best practices? See the full guide: Flipper documentation.

License

MIT