Add improvements

services/forecasting/app/api/forecasting_operations.py

@@ -9,6 +9,7 @@ from fastapi.responses import JSONResponse
 from typing import List, Dict, Any, Optional
 from datetime import date, datetime, timezone
 import uuid
+from uuid import UUID
 
 from app.services.forecasting_service import EnhancedForecastingService
 from app.services.prediction_service import PredictionService
@@ -42,6 +43,30 @@ async def get_rate_limiter():
     return create_rate_limiter(redis_client)
 
 
+def validate_uuid(value: str, field_name: str = "ID") -> str:
+    """
+    Validate that a string is a valid UUID.
+
+    Args:
+        value: The string to validate
+        field_name: Name of the field for error messages
+
+    Returns:
+        The validated UUID string
+
+    Raises:
+        HTTPException: If the value is not a valid UUID
+    """
+    try:
+        UUID(value)
+        return value
+    except (ValueError, AttributeError):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"{field_name} must be a valid UUID, got: {value}"
+        )
+
+
 def get_enhanced_forecasting_service():
     """Dependency injection for EnhancedForecastingService"""
     database_manager = create_database_manager(settings.DATABASE_URL, "forecasting-service")
@@ -68,6 +93,10 @@ async def generate_single_forecast(
     enhanced_forecasting_service: EnhancedForecastingService = Depends(get_enhanced_forecasting_service)
 ):
     """Generate a single product forecast with caching support"""
+    # Validate UUID fields
+    validate_uuid(tenant_id, "tenant_id")
+    # inventory_product_id already validated by ForecastRequest schema
+
     metrics = get_metrics_collector(request_obj)
 
     try: