js_mygeotab_auth

var data = JSON.stringify({
  "method": "Authenticate",
  "params": {
    "database": "database",
    "userName": "[email protected]",
    "password": "password"
  }
});

var xhr = new XMLHttpRequest();

xhr.addEventListener("readystatechange", function () {
  if (this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://my.geotab.com/apiv1");
xhr.setRequestHeader("content-type", "application/json");
xhr.setRequestHeader("cache-control", "no-cache");

xhr.send(data);