Moved utils folder to app/utils folder

app/utils/database.py

@@ -0,0 +1,43 @@
+# utils/database.py
+"""Database utilities ....
+
+This module provides classes and functions for:
+- ....
+- ....
+- ....
+"""
+
+import logging
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.pool import QueuePool
+
+logger = logging.getLogger(__name__)
+
+
+def get_db_engine(database_url: str):
+    """Create database engine with connection pooling."""
+    if database_url.startswith("sqlite"):
+        # SQLite configuration
+        engine = create_engine(
+            database_url, connect_args={"check_same_thread": False}, echo=False
+        )
+    else:
+        # PostgreSQL configuration with connection pooling
+        engine = create_engine(
+            database_url,
+            poolclass=QueuePool,
+            pool_size=10,
+            max_overflow=20,
+            pool_pre_ping=True,
+            echo=False,
+        )
+
+    logger.info(f"Database engine created for: " f"{database_url.split('@')[0]}@...")
+    return engine
+
+
+def get_session_local(engine):
+    """Create session factory."""
+    return sessionmaker(autocommit=False, autoflush=False, bind=engine)