feat: project scaffold (FastAPI backend, React frontend, aiogram bot, docker-compose, CI/CD)

backend/app/db/session.py

@@ -0,0 +1,23 @@
+"""Подключение к БД и сессии SQLAlchemy."""
+from collections.abc import Generator
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker
+
+from app.core.config import settings
+
+engine = create_engine(settings.database_url, pool_pre_ping=True, future=True)
+SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, future=True)
+
+
+class Base(DeclarativeBase):
+    """Базовый класс моделей."""
+
+
+def get_db() -> Generator[Session, None, None]:
+    """Зависимость FastAPI: сессия БД."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()