Hi, i have not used that node but looking at the picture, you are sending a payload to a node called "List upcoming events" - my guess is that node does not support creation of events.
Where did you get the sample code from? Perhaps there is more info in that post/document?
I found an exemple in this forum.
Yes I guess this nodes is only for display events.
How can we add events ? after all, there is really a possibility to add events to google calender via node red ?
It looks like you might have mixed up some things?
That code you pasted in the first post is the result returned from google (not an instruction to insert a new calendar event)
I suspect you are using the wrong node since the code sample you have shown is quite similar to results retuned from the calendar in node in node-red-node-google