Google Calendar API - Create Events to Send Updates - php

Question

I am trying to add a few 'flags' to my Google Calendar Event. I am using the PHP API. Most specifically I am trying to set the ['sendUpdates'=>'all'] flag, so that whenever the event is modified, all those on the attendees list will get notified. I have tried to add this parameter upon inserting/creating the event. I have also tried using patch. But it does not seem to be working.
Here is some sample code:
$opts = [
'start' => [
'date' => '2021-10-11',
'timeZone' => 'US/Pacific'
],
'end' => [
'date' => '2021-10-11',
'timeZone' => 'US/Pacific'
],
'summary' => 'TEST EVENT',
'description' => 'Test description',
'attendees' => [['email'=>'test#test.com']],
'guestsCanModify' => false,
'guestsCanInviteOthers' => true,
'guestsCanSeeOtherGuests' => true,
'reminders' => [
'useDefault' => true,
],
'sendUpdates' => 'all',
];
$event = new \Google_Service_Calendar_Event($opts);
$new_event = $service->events->insert($calendar_id, $event);
Then after this didn't work, I just tried to 'patch' the event with the following:
$service->events->patch($calendar_id, $new_event['id'], $new_event, ['sendUpdates'=>'all']);
None of this is working to properly set the 'sendUpdates' flag. It DOES create the event. Pretty much ran out of options on how to fix this. Documentation is pretty unclear about how to do this, and can't find much on Stack Overflow or anywhere else.
Anyone have any suggestions?

Answer 1

You are very close to setting the sendUpdates parameter to all. Beforehand you have to keep in mind that sendUpdates is a parameter, not a property. Therefore you should set it in the method, not in the request body. So you only have to modify the script to look like this:
$opts = [
'start' => [
'date' => '2021-10-11',
'timeZone' => 'US/Pacific'
],
'end' => [
'date' => '2021-10-11',
'timeZone' => 'US/Pacific'
],
'summary' => 'TEST EVENT',
'description' => 'Test description',
'attendees' => [['email'=>'test#test.com']],
'guestsCanModify' => false,
'guestsCanInviteOthers' => true,
'guestsCanSeeOtherGuests' => true,
'reminders' => [
'useDefault' => true,
],
];
$optionalParameters = array(
"sendUpdates" => "all"
);
$event = new \Google_Service_Calendar_Event($opts);
$new_event = $service->events->insert($calendar_id, $event, $optionalParameters);