javascript - How to get Google calendar event attachment using Apps Script

Question

I have written a Google Apps Script which successfully attaches a Google Sheets document to a newly created Calendar Event. The following code shows how this is achieved:

var eventObj = { 
    summary: eventName,
    start: {dateTime: startDate.toISOString()},
    end: {dateTime: endDate.toISOString()},
    attachments: [{
      'fileUrl': 'https://drive.google.com/open?id=' + fileID,
      'title' : 'Booking Sheet'
    }]
  };
  
  Calendar.Events.insert(eventObj, inStorePartiesCalendarID, {'supportsAttachments': true});

Answer 1

You want to retrieve file IDs from an event. If my understanding is correct, how about this sample script?

Sample script :

var inStorePartiesCalendarID = "### calendar ID ###";
var eventId = "### Event ID ###";
var res = Calendar.Events.get(inStorePartiesCalendarID, eventId, {fields: "attachments/fileId"});
var fileIds = res.attachments.map(function(e){return e.fileId});
Logger.log(fileIds)

Note :

• This sample script supposes that you have already known the event ID. If you need the method for retrieving the event IDs. Please tell me.
• If you want to retrieve the file ID and filename of the attachment file, please use attachments(fileId,title) for fields.

References :

• Calendar.Events.get
• fields

If I misunderstand your question, I'm sorry.