Merge pull request #116 from JerryIdoko/feature/redis-scaling-171-85

Pull Request: Setup Redis for Distributed Rate Limiting & Caching (#171, #85)

Author: AlAfiz

.env.example

@@ -14,6 +14,9 @@ POOL_ADDRESS="CC..." # Replace with your Pool Contract ID
 INDEXER_POLL_INTERVAL=5000 # Polling interval in ms
 WS_PORT=3001 # WebSocket server port
 
+# Redis Configuration
+REDIS_URL="redis://localhost:6379"
+
 # Security Configuration
 JWT_SECRET="YOUR_SUPER_SECRET_KEY_CHANGE_ME"
 ADMIN_PASSWORD="admin_secure_password_123"

config/redis.js

@@ -0,0 +1,30 @@
+const Redis = require('ioredis');
+
+// Load environment variables if needed for standalone scripts
+if (!process.env.REDIS_URL) {
+  require('dotenv').config();
+}
+
+const REDIS_URL = process.env.REDIS_URL || 'redis://localhost:6379';
+
+/**
+ * Initializes and exports a centralized Redis client connection.
+ * Used for distributed rate limiting and caching across multiple API instances.
+ */
+const redis = new Redis(REDIS_URL, {
+  maxRetriesPerRequest: null,
+  retryStrategy: (times) => {
+    const delay = Math.min(times * 50, 2000);
+    return delay;
+  }
+});
+
+redis.on('connect', () => {
+  console.log('✅ Connected to Redis successfully');
+});
+
+redis.on('error', (err) => {
+  console.error('❌ Redis Connection Error:', err.message);
+});
+
+module.exports = redis;