#tamer-secure-store

Secure key-value storage for Lynx. Uses native keychain/Keystore. Requires SecureStoreModule.

#Overview

• getItemAsync / setItemAsync / deleteItemAsync — Async key-value API
• getItem / setItem — Sync variants (if supported)
• canUseBiometricAuthentication — Check if biometric can protect items
• isAvailableAsync — Check if secure store is available
• KeychainAccessibilityConstant — When items are accessible

#Installation

t4l add tamer-secure-store

Run t4l link after installing.

#API

#getItemAsync(key, options?)

Returns Promise<string | null>. Keys must match /^[\w.-]+$/.

#setItemAsync(key, value, options?)

Returns Promise<void>. Value must be string.

#deleteItemAsync(key, options?)

Returns Promise<void>.

#SecureStoreOptions

interface SecureStoreOptions {
  keychainService?: string
  requireAuthentication?: boolean
  authenticationPrompt?: string
  keychainAccessible?: KeychainAccessibilityConstant
  accessGroup?: string
}

#KeychainAccessibilityConstant

AFTER_FIRST_UNLOCK, AFTER_FIRST_UNLOCK_THIS_DEVICE_ONLY, ALWAYS, WHEN_PASSCODE_SET_THIS_DEVICE_ONLY, ALWAYS_THIS_DEVICE_ONLY, WHEN_UNLOCKED, WHEN_UNLOCKED_THIS_DEVICE_ONLY.