google calendar api?

Question

API

Good afternoon! I use google calendar via api key. When calling a method

$results = $service->events->listEvents($calendarId, $optParams);

everything works, but when called, it
$service->events->insert($calendarId, $event);
gives an error

Fatal error:  Uncaught exception 'Google_Service_Exception' with message '{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "required",
    "message": "Login Required",
    "locationType": "header",
    "location": "Authorization"
   }
  ],
  "code": 401,
  "message": "Login Required"
 }
}

What could be the reason?

Answer 1

Login Required