feat(cache): enhance error handling and logging for cache operations

- Added try-catch blocks to improve resilience in cache operations across services.
- Integrated detailed error logging for better debugging.
- Updated Redis reconnect strategy with exponential backoff and logging.

backend/src/common/middlewares/crawler-detection.middleware.ts

@@ -49,13 +49,18 @@ export class CrawlerDetectionMiddleware implements NestMiddleware {
 		const userAgent = req.get("user-agent") || "unknown";
 
 		// Vérifier si l'IP est bannie
-		const isBanned = await this.cacheManager.get(`banned_ip:${ip}`);
-		if (isBanned) {
-			this.logger.warn(`Banned IP attempt: ${ip} -> ${method} ${url}`);
-			res.status(403).json({
-				message: "Access denied: Your IP has been temporarily banned.",
-			});
-			return;
+		try {
+			const isBanned = await this.cacheManager.get(`banned_ip:${ip}`);
+			if (isBanned) {
+				this.logger.warn(`Banned IP attempt: ${ip} -> ${method} ${url}`);
+				res.status(403).json({
+					message: "Access denied: Your IP has been temporarily banned.",
+				});
+				return;
+			}
+		} catch (error) {
+			this.logger.error(`Error checking ban status for IP ${ip}: ${error.message}`);
+			// On continue même en cas d'erreur Redis pour ne pas bloquer les utilisateurs légitimes
 		}
 
 		res.on("finish", async () => {
@@ -73,7 +78,11 @@ export class CrawlerDetectionMiddleware implements NestMiddleware {
 					);
 
 					// Bannir l'IP pour 24h via Redis
-					await this.cacheManager.set(`banned_ip:${ip}`, true, 86400000);
+					try {
+						await this.cacheManager.set(`banned_ip:${ip}`, true, 86400000);
+					} catch (error) {
+						this.logger.error(`Error banning IP ${ip}: ${error.message}`);
+					}
 				}
 			}
 		});