This module will introduce you to working with the Microsoft Graph SDK to access data in Office 365 by building Java applications.

In this lab you will create a UWP application using the Azure AD v2 authentication endpoint and the Microsoft Authentication Library (MSAL) to access data in Office 365 using the Microsoft Graph.

- [Java Microsoft Graph tutorial](https://docs.microsoft.com/graph/tutorials/java)

The [demos](./demos) directory in this repository contains copies of the project that correspond to completing individual sections of the tutorial. If you just want to demo a particular section of the tutorial, you can start with the version from the previous section.

- [01-create-app](Demos/01-create-app): Completed [Create a Java console app](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=1)

- [02-add-aad-auth](Demos/02-add-aad-auth): Completed [Add Azure AD authentication](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=3)

- [03-add-msgraph](Demos/03-add-msgraph): Completed [Get calendar data](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=4)

If you just want the completed sample generated by following this lab, you can find it here.

- [Completed project](Demos/03-add-msgraph)

**THIS CODE IS PROVIDED _AS IS_ WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**

The version of the project in this directory reflects completing the tutorial up through [Create an ASP.NET MVC web app](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=1). If you use this version of the project, you need to complete the rest of the tutorial starting at [Register the app in the portal](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=2).

The version of the project in this directory reflects completing the tutorial up through [Add Azure AD authentication](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=3). If you use this version of the project, you need to complete the rest of the tutorial starting at [Get calendar data](https://docs.microsoft.com/graph/tutorials/java?tutorial-step=4).

To run the completed project in this folder, you need the following:

- [Java SE Development Kit (JDK)](https://java.com/en/download/faq/develop.xml) and [Maven](https://maven.apache.org/) installed on your development machine. If you do not have the JDK or Maven, visit the previous links for download options. (**Note:** This tutorial was written with OpenJDK version 12.0.1 and Maven 3.6.1. The steps in this guide may work with other versions, but that has not been tested.)

- A Microsoft work or school account.

If you don't have a Microsoft account, you can [sign up for the Office 365 Developer Program](https://developer.microsoft.com/office/dev-program) to get a free Office 365 subscription.

1. Open a browser and navigate to the [Azure Active Directory admin center](https://aad.portal.azure.com). Login using a **personal account** (aka: Microsoft Account) or **Work or School Account**.

1. Select **Azure Active Directory** in the left-hand navigation, then select **App registrations** under **Manage**.


1. Select **New registration**. On the **Register an application** page, set the values as follows.

- Set **Name** to `Java Graph Tutorial`.

- Set **Supported account types** to **Accounts in any organizational directory**.

- Leave **Redirect URI** empty.


1. Choose **Register**. On the **Java Graph Tutorial** page, copy the value of the **Application (client) ID** and save it, you will need it in the next step.


1. Select the **Add a Redirect URI** link. On the **Redirect URIs** page, locate the **Suggested Redirect URIs for public clients (mobile, desktop)** section. Select the `https://login.microsoftonline.com/common/oauth2/nativeclient` URI.


1. Locate the **Default client type** section and change the **Treat application as a public client** toggle to **Yes**, then choose **Save**.


1. Rename the `oAuth.properties.example` file to `oAuth.properties`.

1. Edit the `oAuth.properties` file and make the following changes.

1. Replace `YOUR_APP_ID_HERE` with the **Application Id** you got from the App Registration Portal.

In your command-line interface (CLI), navigate to the project directory and run the following commands.

mvn package

java -cp target/graphtutorial-1.0-SNAPSHOT.jar com.contoso.App