Microsoft-Graph

If you have ever tried to call the Microsoft Graph API, integrate with SharePoint, or add “Sign in with Microsoft” to an application, you hit the same wall: you need an App Registration. It is the first thing you do, and if you get it wrong, nothing else works.

Introduction # Microsoft Graph API provides a unified endpoint for accessing Microsoft 365 services, including SharePoint. This article demonstrates how to implement create, read, update, and delete (CRUD) operations for files in SharePoint document libraries using Microsoft Graph API and .NET. You’ll learn how to authenticate to Microsoft Graph, navigate SharePoint site structure, and manage files programmatically.