# Cache Library Usage Guide

> **⚠️ DEPRECATED**: This documentation is outdated. The cache library has been simplified to only use Redis/Dragonfly.
> 
> **Please see [simplified-cache-usage.md](./simplified-cache-usage.md) for current usage instructions.**

The `@stock-bot/cache` library now provides a simplified Redis-only caching solution designed specifically for trading bot applications.

## Migration from Old API

If you're migrating from the old cache API, here are the key changes:

### Old API (DEPRECATED)
```typescript
// These are no longer supported
const cache = createCache('auto');
const cache = createCache('memory');  
const cache = createCache('hybrid');
const cache = createCache('redis');

// Direct imports no longer available
import { MemoryCache, HybridCache } from '@stock-bot/cache';
```

### New Simplified API
```typescript
// Use factory functions with options only
const cache = createCache({ keyPrefix: 'app:', ttl: 3600 });
const tradingCache = createTradingCache();
const marketCache = createMarketDataCache();

// Only Redis cache is available
import { RedisCache, RedisConnectionManager } from '@stock-bot/cache';
```

## Quick Migration Steps

1. **Remove cache type parameters**: Change `createCache('hybrid')` to `createCache()`
2. **Remove name parameter**: The `name` option is no longer needed  
3. **Update imports**: Use named imports instead of default import
4. **Use specialized factories**: Consider using `createTradingCache()`, `createMarketDataCache()`, etc.

For complete usage examples and best practices, see [simplified-cache-usage.md](./simplified-cache-usage.md).