Is it possible to add "Other calendar by URL" in google calendar API?

Question

I have been unable to find help on Google Calendar APIreference. I am looking for a resource which makes the same things like option in user interface "Add by URL"( see below).

Is it possible to add other calendars by URL through Google Calendar API?

Answer 1

I dont think this is supported yet. You can read below the "Add by URL" that this is for iCals.

With respect to DalmTo's suggestion, I tried placing an iCal URL as "id" in the POST request in CalendarList.insert. It didn't work.

I got an error saying:

"code": 404,
  "message": "Not Found"

But, when I added it manually using the Add by URL field, it was inserted. This only means that CalendarList.insert doesn't accept iCal URLs. I also checked the CalendarList resource and no mention of iCal URLs were present.

Answer 2

Add by URL is not very good functionality. We tried that and there are 2 main reasons why not to use it: 1. Users won't use it. They just don't understand it as it is too complicated. I understand you are looking solution for that - fine and good luck; 2. Google doesn't like it. For MANY years already Google is keeping artiicial time-lag between your ical source and Google Calendar. Approximately 6 hours. Meaning - if you update event in your application the update will be visible in Google Calendar after around 2-6 hours.

Maybe, just maybe, if you find Server-toServer solution for this, it is fixed but adding ical link is a waste.