Microsoft Graph APIs are a set of RESTful web APIs provided by Microsoft to access data and services across Microsoft 365 services. These APIs allow developers to integrate with various Microsoft products like Outlook, OneDrive, SharePoint, Teams, and more.

The primary purpose of Microsoft Graph APIs is to enable developers to build applications that can interact with a user’s data in Microsoft 365. By using these APIs, developers can access a wide range of data, including emails, calendars, contacts, files, and more, all through a single endpoint.

To fetch data using Microsoft Graph APIs, developers need to authenticate and authorize their applications, then make HTTP requests to the Microsoft Graph endpoint with the appropriate permissions. For example, to retrieve a user’s profile information, a simple HTTP GET request to https://graph.microsoft.com/v1.0/me can be made. The response will contain the requested user data in JSON format, which can then be processed and utilized within the application.