Home Connect

[tomnord]

I've gotten a bit further here. The HC API requires me to log in to my account and accept the API connection. I have made that part of the script, but the question is how to get this part of the script only to run once when needed. The return is a device_code and a url for logging in to HC account. If the function is run every cycle, the verification url changes, and the device_code also.
Documentation: https://api-docs.home-connect.com/author...evice-flow

Code:

function GetDeviceCode()
  local request_code_url = "https://api.home-connect.com/security/oauth/device_authorization"
  local response_body = {}
  local export_data = {}
 
  local request_body = "client_id=" .. client_id .. "&scope=" .. scope

  local body, code, hdrs, stat = https.request
  {
    url = request_code_url;
    method = "POST";
    headers =
    {
      ["Content-Type"] = "application/x-www-form-urlencoded";
      ["Content-Length"] = #request_body;
    };
    source = ltn12.source.string(request_body);
    sink = ltn12.sink.table(response_body);
  }
  log(code)
   if code == 200 then
    response_decode = json.decode(table.concat(response_body))
    log(response_decode)
    sleep = response_decode["interval"]
    return response_decode["device_code"]
 end
end

response_decode:

Code:

* table:
["expires_in"]
  * number: 600
["verification_uri_complete"]
  * string: https://api.home-connect.com/security/oauth/device_verify?user_code=xxxx-xxxx
["verification_uri"]
  * string: https://api.home-connect.com/security/oauth/device_verify
["user_code"]
  * string: xxxx-xxxx
["device_code"]
  * string: xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
["interval"]
  * number: 5