Initial commit

backend/app/main.py

@@ -0,0 +1,50 @@
+"""FastAPI entrypoint for the DMS backend service."""
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api.router import api_router
+from app.core.config import get_settings
+from app.db.base import init_db
+from app.services.app_settings import ensure_app_settings
+from app.services.handwriting_style import ensure_handwriting_style_collection
+from app.services.storage import ensure_storage
+from app.services.typesense_index import ensure_typesense_collection
+
+
+settings = get_settings()
+
+
+def create_app() -> FastAPI:
+    """Builds and configures the FastAPI application instance."""
+
+    app = FastAPI(title="DCM DMS API", version="0.1.0")
+    app.add_middleware(
+        CORSMiddleware,
+        allow_origins=settings.cors_origins,
+        allow_credentials=True,
+        allow_methods=["*"],
+        allow_headers=["*"],
+    )
+    app.include_router(api_router, prefix="/api/v1")
+
+    @app.on_event("startup")
+    def startup_event() -> None:
+        """Initializes storage directories and database schema on service startup."""
+
+        ensure_storage()
+        ensure_app_settings()
+        init_db()
+        try:
+            ensure_typesense_collection()
+        except Exception:
+            pass
+        try:
+            ensure_handwriting_style_collection()
+        except Exception:
+            pass
+
+    return app
+
+
+app = create_app()