Is there any way to get notification of changes to google calendar - events

i have an application that updates events in google calendar. however user can also open google calendar via browser and update events from there. is there any way that my app can get a notification if someone else makes changes to the calendar?

Related

How to be aware of the creation of a new event in a google calendar? [duplicate]

I am developing a SPA webapp through which I add events to my users google calendar They have given permission for. However this is my first time using Google calendar API, and was unclear about how to retrieve my users existing events , or if they add new events or delete them. IS there an option to set a webhook within google calendar thus when the user makes any changes to the calendar I can receive the change. My current approach was to make multiple get requests but that seems very inefficient. How can I keep my app calendar in sync with all user created events.
You can set up a push notification to be alerted any time anything changes on one of your calendars. I looked into it before a little, if memory serves it doesn't alert you to a lot of particularly useful information (I don't believe it tells you exactly what changed and how). Check out the docs here: https://developers.google.com/google-apps/calendar/v3/push
What I ended up doing was setting up a cronjob and getting all of my calendars' events using the synctoken, which returns only the events that have changed since the last time I polled the API for events. https://developers.google.com/google-apps/calendar/v3/sync
If you are using the SyncToken in your request for data, all you get back is the events that have changed. There is an eventID in the Google records that you can use to connect the change to your event data.

Google Calendar event Created/Updated/Deleted Webhook?

I am developing a SPA webapp through which I add events to my users google calendar They have given permission for. However this is my first time using Google calendar API, and was unclear about how to retrieve my users existing events , or if they add new events or delete them. IS there an option to set a webhook within google calendar thus when the user makes any changes to the calendar I can receive the change. My current approach was to make multiple get requests but that seems very inefficient. How can I keep my app calendar in sync with all user created events.
You can set up a push notification to be alerted any time anything changes on one of your calendars. I looked into it before a little, if memory serves it doesn't alert you to a lot of particularly useful information (I don't believe it tells you exactly what changed and how). Check out the docs here: https://developers.google.com/google-apps/calendar/v3/push
What I ended up doing was setting up a cronjob and getting all of my calendars' events using the synctoken, which returns only the events that have changed since the last time I polled the API for events. https://developers.google.com/google-apps/calendar/v3/sync
If you are using the SyncToken in your request for data, all you get back is the events that have changed. There is an eventID in the Google records that you can use to connect the change to your event data.

Get notified when a a new calendar is created in Google Calendar API

I read about the push notifications for a particular Google calendar, where a POST request is sent to a preset endpoint URL notifying of any changes (new events, event changes) in a particular calendar.
Are there push notifications in Google API for when a new calendar is created or a particular calendar is deleted? Or do I have to retort to polling the Google calendar API for such changes every once in a while?

Google Calendar API on add event callback for sync

I am using google-api-php-clientfor fetching and inserting Google Calendar events. Now I want to synchronize events on my system with events on Google Calendar.
I am wondering, if I add Event in Google Calendar, can it be automatically added in my system (maybe with some callback url) so I don't need to use CRON jobs to recheck events in Google Calendar in some time interval?
Thank you!
Google provides both iCal and XML output for viewing from external applications. This URL can be found by clicking on the drop down from your calendar name while logged in, selecting settings, and the calendar name. The private address row gives you both iCal and XML URLs.
Here are instructions for Outlook and iCal.

How to automatically subscribe a user to a public calendar in Windows Live Calendar?

I have a public calendar on my site and want to provide the users a link that automatically subscribe them to this calendar on their Windows Live Calendar.
Been looking for info and couldn't find anything, just the way of doing this manually inside Windows Live Calendar.
Do you know if there is a way of doing this?
Thank you

Resources