Push the rest

backend/app/core/db.py

@@ -0,0 +1,27 @@
+from __future__ import annotations
+
+from sqlalchemy import create_engine
+from sqlalchemy.engine import Engine
+from sqlalchemy.orm import sessionmaker, Session
+
+from app.core.config import settings
+
+
+def create_postgres_engine() -> Engine:
+    return create_engine(
+        settings.postgres_connection_url,
+        pool_pre_ping=True,
+        pool_recycle=1800,
+        pool_size=5,
+        max_overflow=10,
+        future=True,
+    )
+
+
+def create_session_factory(engine: Engine) -> sessionmaker[Session]:
+    return sessionmaker(
+        bind=engine,
+        autoflush=False,
+        autocommit=False,
+        expire_on_commit=False,
+    )