self ping lifespan

fetch.py

@@ -1,8 +1,12 @@
+from apscheduler.executors.asyncio import AsyncIOExecutor
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from contextlib import asynccontextmanager
 from datetime import datetime
 from fastapi import FastAPI, Request
 from fastapi.responses import Response, FileResponse
 from typing import Any
 
+import httpx
 import json
 import subprocess
 
@@ -14,7 +18,14 @@ class PrettyJSONResponse(Response):
         return json.dumps(content, indent=2).encode("utf-8")
 
 
-app = FastAPI()
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    scheduler.start()
+    yield
+    scheduler.shutdown()
+
+
+app = FastAPI(lifespan=lifespan)
 
 
 @app.middleware("http")
@@ -62,3 +73,22 @@ def get_analytics(n: int = 5):
 @app.api_route("/qa", response_class=FileResponse, methods=["GET", "HEAD"])
 def query_analytics():
     return "a.json"
+
+
+@app.get("/favicon.ico")
+async def favicon():
+    return {"message": "woof!"}
+
+
+@app.get("/ping")
+async def ping():
+    return {"message": "woof!"}
+
+
+async def self_ping():
+    async with httpx.AsyncClient() as client:
+        _ = await client.get("http://0.0.0.0:7860/ping")
+
+
+scheduler = AsyncIOScheduler(executors={"default": AsyncIOExecutor()})
+scheduler.add_job(self_ping, "interval", minutes=60)