initial commit

backend/app/database.py

@@ -0,0 +1,20 @@
+"""FluentGerman.ai — Database setup (async PostgreSQL)."""
+
+from collections.abc import AsyncGenerator
+
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.orm import DeclarativeBase
+
+from app.config import get_settings
+
+engine = create_async_engine(get_settings().database_url, echo=get_settings().debug)
+async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+async def get_db() -> AsyncGenerator[AsyncSession, None]:
+    async with async_session() as session:
+        yield session