init

app/presentation/main.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from fastapi import FastAPI
+
+from app.infrastructure.db.sqlalchemy.models import Base
+from app.infrastructure.db.sqlalchemy.session import get_engine
+from app.presentation.api.v1.health import router as health_router
+from app.presentation.api.v1.users import router as users_router
+
+
+def create_app() -> FastAPI:
+    app = FastAPI(title="DDD Onion FastAPI Demo", version="1.0.0")
+
+    app.include_router(health_router)
+    app.include_router(users_router)
+
+    @app.on_event("startup")
+    async def on_startup() -> None:
+        # демо-миграция: создать таблицы при старте
+        # в проде делай Alembic, но файл models.py уже готов.
+        engine = get_engine()
+        async with engine.begin() as conn:
+            await conn.run_sync(Base.metadata.create_all)
+
+    return app
+
+
+app = create_app()