Google Maps Bug

backend/src/core/config/redis.ts

@@ -51,6 +51,34 @@ export class CacheService {
       logger.error('Cache delete error', { key, error });
     }
   }
+
+  /**
+   * Delete all keys matching the provided pattern (without namespace prefix).
+   * Uses SCAN to avoid blocking Redis for large keyspaces.
+   */
+  async deletePattern(pattern: string): Promise<void> {
+    try {
+      const namespacedPattern = this.prefix + pattern;
+      let cursor = '0';
+
+      do {
+        const [nextCursor, keys] = await redis.scan(
+          cursor,
+          'MATCH',
+          namespacedPattern,
+          'COUNT',
+          100
+        );
+        cursor = nextCursor;
+
+        if (keys.length > 0) {
+          await redis.del(...keys);
+        }
+      } while (cursor !== '0');
+    } catch (error) {
+      logger.error('Cache delete pattern error', { pattern, error });
+    }
+  }
 }
 
 export const cacheService = new CacheService();