ashelopukho

public static class GraphClientExtensions
{
    public static IServiceCollection AddMicrosoftGraphClient(this IServiceCollection services)
    {
        services.AddScoped(sp =>
        {
            var tokenAcquisition = sp.GetRequiredService<ITokenAcquisition>();
            var authenticationProvider = new BaseBearerTokenAuthenticationProvider(new TokenProvider(tokenAcquisition));
            var graphServiceClient = new GraphServiceClient(authenticationProvider);
            return graphServiceClient;

ashelopukho

using Ical.Net;
using Ical.Net.CalendarComponents;
using Ical.Net.DataTypes;
using Ical.Net.Serialization;
using Microsoft.SharePoint;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

ashelopukho

(async () => {
	const batch = pnp.sp.web.createBatch();
	const list = pnp.sp.web.lists.getByTitle('ListA');
	const items = await list.items.select('Id,Title').get();
	const entityTypeFullName = await list.getListItemEntityTypeFullName();

	for (const item of items) {
		list.items.getById(item.Id).inBatch(batch)
			.update({ Title: `${item.Title} (${item.Id})` }, '*', entityTypeFullName);
	}