PnP Framework Interactive Auth for SharePoint Online/365 - Simple Sample

Sample.cs

using System;
using PnP.Framework;

/* Reference:
Auth
- https://www.inkeysolutions.com/blogs/secure-authentication-of-sharepoint-with-pnp-framework-with-ccode/
- https://knowledge-junction.com/2021/01/25/m365-sharepoint-online-csom-getting-sharepoint-client-context-using-pnp-framework-in-net-core-application/

Reading Changelog
- https://www.schaeflein.net/reading-the-sharepoint-change-log-from-csom/
*/

string siteUrl = "";
string clientId = "";
string clientSecret = "";
string tenantId = "";

var authManager = AuthenticationManager.CreateWithInteractiveLogin(clientId: clientId, tenantId: tenantId, redirectUrl: "http://localhost");
using (var clientContext = authManager.GetContext(siteUrl))
{
    clientContext.Load(clientContext.Web, p => p.Title);
    clientContext.ExecuteQuery();
    Console.WriteLine(clientContext.Web.Title);
}