Script to help me position my `Alcatel Linkhub HH40v` LTE modem for the best signal strength

say_lte.py

#!/usr/bin/env python
"""
<Program Name>
    say_lte.py

<Authors>
    Lukas Puehringer <luk.puehringer@gmail.com>
    James White <james@jmwhite.co.uk>

<Purpose>
    Script to help me position my `Alcatel Linkhub HH40v` LTE modem for the
    best signal strength.

    If a change in signal strength is detected, it uses the OS X command line
    tool `say` to say the new signal strength.

<Usage>
    1. Connect your computer to your Alcatel Linkhub's WiFi
    2. Open a browser and go to the admin page at `192.168.1.1`
    3. Open your browser's developer tools, go to the `network` tab and look
       for requests to `http://192.168.1.1/jrd/webapi`
    4. Take any request, copy the value of the header
      `_TclRequestVerificationKey` and assign it to below variable
      `REQUEST_KEY`
    5. Turn up the volume of your computer and run the script
    6. Walk your Alcatel Linkhub around your apartment (long extension cord is
       helpful) and place it at where your computer tells you a high signal.

"""

import time
import requests
import subprocess
import argparse

parser = argparse.ArgumentParser()
parser.add_argument('requestKey', help='_TclRequestVerificationKey header')
parser.add_argument('routerIPAddress', help='The LAN IP of your router', nargs='?', default='192.168.1.1')
parser.add_argument('jrdId', help='ID value used with JSON-RPC API calls', nargs='?', type=int, default=1)
args = parser.parse_args()

URL = 'http://' + args.routerIPAddress + '/jrd/webapi'

# JSON rpc request to get information such as signal strength
JSON_REQUEST = {
  "id": str(args.jrdId),
  "jsonrpc": "2.0",
  "method": "GetSystemStatus",
  "params": {}
}

# Headers required to authenticate with JSON rpc (assessed by trial and error)
HEADERS = {
  "_TclRequestVerificationKey": args.requestKey,
  "Referer": "http://" + args.routerIPAddress + "/index.html"
}

def main():
  """ Run indefinitely to (at an interval of 1 second)
    - print requested signal strength to command line, and
    - if signal strength changes, `say` the new strength.
  """
  last = None
  while True:
    r = requests.post(URL, json=JSON_REQUEST, headers=HEADERS)
    strength = r.json().get("result", {}).get("SignalStrength")

    print "Signal Strength:", strength
    if strength != last:
      process = subprocess.Popen(["say", 'Signal strength is now ' + str(strength)],
          stdout=subprocess.PIPE)
      process.communicate()

    last = strength
    time.sleep(1)

if __name__ == "__main__":
  main()

Thank you, I'm cannibalizing this to monitor my bandwidth usage 😄
Keywords: IK41 web api bandwidth traffic

jrdId is the id you see in response, so for my device I use GetUsageSettings, which contains UsedData and it has "id": "7.3".
I hope _TclRequestVerificationToken is constant.

Seems to work also with TCL LINKHUB HH132

<?php
$headers = [ '_TclRequestVerificationKey: XXX', '_TclRequestVerificationToken: XXX'];

$payload = array(
 "id"=>"0",
 "jsonrpc"=>"2.0",
 "method"=>"GetUsageSettings", // traffico
 // "method"=>"GetSIPAccountSettings",
 "params"=>"{}"
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_URL, "http://192.168.1.1/jrd/webapi");
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
curl_setopt($ch, CURLOPT_HTTPHEADER,$headers);
$result = curl_exec($ch);
$result = json_decode($result, true);
if (isset($result["error"]["message"])) {
   echo("ERROR: " .$result["error"]["message"]);
 } else {
   // var_dump($result);
   echo $result["result"]["UsedData"] / pow(1024, 3) . "\n";  // traffico
   }
?>