• Node.js
• Visual Studio Code
• Microsoft 365 Developer Tenant

You have to register an application in Azure Active Directory in order to run this application. You could do it manually in the Azure Portal.

1. Register a new application in the Azure Portal.
2. Ensure that the application is enabled for the authorization code flow with PKCE. This will require that you redirect URI configured in the portal is of type SPA.
3. For this sample we will create a single tenant application

1. Copy the value of the Application (client) ID of the newly registered application from Azure Portal. You can get this from the overview page of the newly registered application.
2. In the auth.js file, on line 4, replace the value of the clientId property with the copied Application (client) ID
3. Copying the value of the Directory (tenant) ID of the newly registered application from Azure Portal. You can get this from the overview page of the newly registered application.
4. In the auth.js file, on line 6, replace the value of the authority property with the Directory (tenant) ID copied in above step, eg https://login.microsoftonline.com/0be187e2-aa5c-464a-bc8b-74b0416b4c3a, since this is a single tenant application.
5. In case you created a multi-tenant application then comment out line 6 in auth.js. You don't need to pass the authority.

• In the command line, go to the project root folder mslearn-retrieve-m365-data-with-msgraph-quickstart.
• Run below script in the command line. This will open your application in the browser with the url http://localhost:8080.

npm start

If the configuration of the app is successful, the app will be as shown below: