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main.py

@@ -25,21 +25,12 @@ async def test_post():
     return {"detail": "POST method working"}
 
 @app.get("/webhook")
-def verify(
-    hub_mode:        Optional[str] = Query(None, alias="hub.mode"),
-    hub_challenge:   Optional[str] = Query(None, alias="hub.challenge"),
-    hub_verify_token: Optional[str] = Query(None, alias="hub.verify_token"),
-):
-    # 1) Initial probe
-    if hub_mode is None and hub_challenge is None and hub_verify_token is None:
-        return PlainTextResponse(status_code=200, content="")
-
-    # 2) Real handshake: echo back challenge (temporarily ignore token)
-    if hub_mode == "subscribe":
-        return PlainTextResponse(content=hub_challenge or "", media_type="text/plain")
-
-    # 3) Everything else → forbidden
-    raise HTTPException(status_code=403, detail="Invalid verify token")
+async def verify(hub_mode: str = Query(..., alias="hub.mode"),
+                 hub_token: str = Query(..., alias="hub.verify_token"),
+                 hub_challenge: str = Query(..., alias="hub.challenge")):
+    if hub_mode == "subscribe" and hub_token == os.getenv("VERIFY_TOKEN"):
+        return PlainTextResponse(hub_challenge)
+    raise HTTPException(status_code=403)
 
 @app.post("/webhook")
 async def receive_webhook(request: Request):