API: add startup self-check that hits /api/health and logs result

app.py

@@ -6,6 +6,7 @@ from typing import Tuple, Dict
 import gradio as gr
 from fastapi import FastAPI, UploadFile, File, Form, Header, HTTPException, Depends
 from fastapi.responses import StreamingResponse, JSONResponse
+from fastapi.testclient import TestClient
 import io
 from spaces import GPU
 from huggingface_hub import snapshot_download
@@ -276,6 +277,16 @@ def ping(_: None = Depends(_require_auth)):
     return {"status": "ok", "auth": True}
 
 
+@api.on_event("startup")
+def _self_check():
+    try:
+        client = TestClient(api)
+        r = client.get("/api/health")
+        logger.info("Self-check /api/health -> %s %s", r.status_code, r.json() if r.headers.get("content-type"," ").startswith("application/json") else "")
+    except Exception as e:
+        logger.error("Self-check failed: %s", e)
+
+
 @api.post("/api/edit")
 async def api_edit(
     file: UploadFile = File(...),