Update app.py

app.py

@@ -27,7 +27,7 @@ def query(payload):
     }
     
     
-    response = requests.request("POST", API_URL, headers=headers, data=data)
+    response = requests.request("POST", API_URL, headers=headers, data=json.dumps(data))
     response_txt = json.loads(response.content.decode("utf-8"))
     print(response_txt)
     return response_txt