Shelly http command

[victor.back]

Hi.

Can someone answer where I do wrong in this script for controling a shelly plug.
The url works as it suppose to when paste it in a web browser.
The shelly plug is just turn OFF either if I put the controling GA to "ON" or "OFF".

Code:

http = require("socket.http")
http.TIMEOUT = 5

ShellyPlugON = "http://192.168.1.51/relay/0?turn=on"
ShellyPlugOFF = "http://192.168.1.51/relay/0?turn=off"

value = grp.getvalue()

if value == true then
  http.request(ShellyPlugON)
  else
  http.request(ShellyPlugOFF)
end