Initial commit - Migrated to Dev environment

backend/app/db/session.py

@@ -0,0 +1,31 @@
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+from app.core.config import settings
+from typing import AsyncGenerator
+
+engine = create_async_engine(
+    settings.DATABASE_URL, # A te eredeti kulcsod
+    echo=getattr(settings, "DEBUG", False),
+    future=True,
+    pool_size=20,
+    max_overflow=10
+)
+
+AsyncSessionLocal = async_sessionmaker(
+    engine, 
+    class_=AsyncSession, 
+    expire_on_commit=False, 
+    autoflush=False
+)
+# Ez a sor kell, mert a main.py és a többiek ezen a néven keresik
+SessionLocal = AsyncSessionLocal 
+
+async def get_db() -> AsyncGenerator[AsyncSession, None]:
+    async with AsyncSessionLocal() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+        finally:
+            await session.close()