Custom Storage Adapter

Implement IStorageAdapter to use any key-value store (SecureStore, MMKV, IndexedDB, etc.).

import type { IStorageAdapter } from '@drakkar.software/sunglasses-core';

class SecureStorageAdapter implements IStorageAdapter {
  async read(key: string): Promise<string | null> {
    return SecureStore.getItemAsync(key);
  }
  async write(key: string, value: string): Promise<void> {
    await SecureStore.setItemAsync(key, value);
  }
  async delete(key: string): Promise<void> {
    await SecureStore.deleteItemAsync(key);
  }
}

Rules

All methods must be async
Methods must not throw to the caller — catch internal errors and log or ignore
Optional flush() is only needed for HTTP-backed stores that buffer writes

See Adapter authoring in the contributor guide.

Rules​

Rules