Get event changes (get delta)

Retrieve a list of events that have been added, deleted, or updated in one or more calendars.

import { GraphClient } from '../independentsoft/graph/graph.js';
import { UserId } from '../independentsoft/graph/users.js';
import { CalendarId } from '../independentsoft/graph/calendars.js';

async function mainFunc() {

	try {
		const client = new GraphClient();
		client.clientId = "xxxxxxxxxx-209e-454e-xxxxxxxxxxxxxxxxxxx";
		client.tenant = "independentsoft.onmicrosoft.com";
		client.clientSecret = "xxxxxxxxx.ONVE[=zYYxxxxxxxxxxxxxxxx";

		const now = new Date();

		const today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
		const tomorrow = new Date(now.getFullYear(), now.getMonth(), now.getDate() + 1);
	
		//initial request
		let changes = await client.getEventChanges(undefined, today, tomorrow, new CalendarId("TMAEg5x4IBAAA="), undefined, new UserId("info@independentsoft.onmicrosoft.com"));

		while(true)
		{
			if(changes !== undefined && changes !== null)
			{
				for(let i=0; i < changes.events.length; i++) {

					console.log("Subject: " + changes.events[i].subject);
					console.log("Start: " + changes.events[i].start.time);
					console.log("End: " + changes.events[i].end.time);
		
					console.log("---------------------------------------");
				}
			}

			//sleep 1 min
			var end = Date.now() + 60000;
			while (Date.now() < end) ;

			//changes = await client.getEventChanges(changes.deltaLink, undefined, undefined, undefined, undefined, new UserId("info@independentsoft.onmicrosoft.com"));
			changes = await client.getEventChanges(changes.deltaLink);
		}


	}
	catch (e) {
		console.error(e.code)    //error code
		console.error(e.message) //description
		console.error(e.date)    //timestamp
		console.error(e.innerError)   //innerError
	}
}

mainFunc();

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