Create backend/app/main.py

backend/app/main.py

@@ -0,0 +1,22 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+app = FastAPI()
+
+# In HF Spaces, frontend and backend are served from same origin if proxied,
+# but keep CORS permissive for dev.
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+@app.get("/api/health")
+def health():
+    return {"status": "ok"}
+
+@app.get("/api/hello")
+def hello():
+    return {"message": "Hello from FastAPI"}