Step 1: Register the application with the Microsoft identity platform.
To authenticate with the Microsoft identity platform endpoint, you must first register your app at the Azure app registration portal
Step 2: Build a client by using the client app ID
Step 3: Create an authentication provider
Create an authentication provider by passing in a client application and graph scopes.
Code example:
DeviceCodeProvider authProvider = new DeviceCodeProvider(publicClientApplication, graphScopes);
// Create a new instance of GraphServiceClient with the authentication provider.
GraphServiceClient graphClient = new GraphServiceClient(authProvider);
Step 4: Create a new instance of the GraphServiceClient
Step 5: Invoke the request to the Microsoft Graph API
Reference:
https://docs.microsoft.com/en-us/graph/auth-v2-service
https://docs.microsoft.com/en-us/graph/sdks/create-client
