MVP Build

backend/src/core/config/redis.ts

@@ -0,0 +1,58 @@
+/**
+ * @ai-summary Redis client and caching service
+ * @ai-context Used by all features for caching external API responses
+ */
+import Redis from 'ioredis';
+import { logger } from '../logging/logger';
+import { env } from './environment';
+
+export const redis = new Redis({
+  host: env.REDIS_HOST,
+  port: env.REDIS_PORT,
+  retryStrategy: (times) => Math.min(times * 50, 2000),
+});
+
+redis.on('connect', () => {
+  logger.info('Redis connected');
+});
+
+redis.on('error', (err) => {
+  logger.error('Redis error', { error: err.message });
+});
+
+export class CacheService {
+  private prefix = 'mvp:';
+  
+  async get<T>(key: string): Promise<T | null> {
+    try {
+      const data = await redis.get(this.prefix + key);
+      return data ? JSON.parse(data) : null;
+    } catch (error) {
+      logger.error('Cache get error', { key, error });
+      return null;
+    }
+  }
+  
+  async set(key: string, value: any, ttl?: number): Promise<void> {
+    try {
+      const data = JSON.stringify(value);
+      if (ttl) {
+        await redis.setex(this.prefix + key, ttl, data);
+      } else {
+        await redis.set(this.prefix + key, data);
+      }
+    } catch (error) {
+      logger.error('Cache set error', { key, error });
+    }
+  }
+  
+  async del(key: string): Promise<void> {
+    try {
+      await redis.del(this.prefix + key);
+    } catch (error) {
+      logger.error('Cache delete error', { key, error });
+    }
+  }
+}
+
+export const cacheService = new CacheService();