✨ Enhance Redis connection handling with retry logic and improved error logging

src/lib/redis.ts

@@ -1,8 +1,30 @@
 import Redis from "ioredis";
 
 // Connect to Redis using REDIS_URL environment variable or default to redis://redis:6379
+// This ensures we have a fallback URL when running with Docker Compose
 const redisUrl = process.env.REDIS_URL ?? 'redis://redis:6379';
 
-export const redis = new Redis(redisUrl);
-export const redisPublisher = new Redis(redisUrl); // For publishing
-export const redisSubscriber = new Redis(redisUrl); // For subscribing
+console.log(`Connecting to Redis at: ${redisUrl}`);
+
+// Configure Redis client with connection options
+const redisOptions = {
+  retryStrategy: (times: number) => {
+    // Retry with exponential backoff up to 30 seconds
+    const delay = Math.min(times * 100, 3000);
+    console.log(`Redis connection attempt ${times} failed. Retrying in ${delay}ms...`);
+    return delay;
+  },
+  maxRetriesPerRequest: 5,
+  enableReadyCheck: true,
+  connectTimeout: 10000,
+};
+
+export const redis = new Redis(redisUrl, redisOptions);
+export const redisPublisher = new Redis(redisUrl, redisOptions); // For publishing
+export const redisSubscriber = new Redis(redisUrl, redisOptions); // For subscribing
+
+// Log connection events
+redis.on('connect', () => console.log('Redis client connected'));
+redis.on('error', (err) => console.error('Redis client error:', err));
+redis.on('ready', () => console.log('Redis client ready'));
+redis.on('reconnecting', () => console.log('Redis client reconnecting...'));