Sample for the go sdk preview announcement

app.go

import (
    azidentity "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
    a          "github.com/microsoft/kiota/authentication/go/azure"
    "context"
    msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
)

// the following block creates a new device code credential using the Azure Identity library which will be used by the authentication provider to obtain an access token for requests

cred, err := azidentity.NewDeviceCodeCredential(&azidentity.DeviceCodeCredentialOptions{
   TenantID: "<the tenant id from your app registration>",
   ClientID: "<the client id from your app registration>",
   UserPrompt: func(ctx context.Context, message azidentity.DeviceCodeMessage) error {
      fmt.Println(message.Message)
      return nil
   },
})


if err != nil {
   fmt.Printf("Error creating credentials: %v\n", err)
}

// the following block creates a new authentication provider using the previously created credential, it will be used by the request adapter to authenticate the requests

auth, err := a.NewAzureIdentityAuthenticationProviderWithScopes(cred, []string{"Files.Read"})

if err != nil {
   fmt.Printf("Error authentication provider: %v\n", err)
   return
} 

// the following block creates a new request adapter using the previously created authentication provider, it will be used by the client to execute the requests built using the fluent style API

adapter, err := msgraphsdk.NewGraphRequestAdapter(auth)

if err != nil {
   fmt.Printf("Error creating adapter: %v\n", err)
   return
}

// the following block create a new Graph Service Client using the previously created request adapter.
// the client is the starting point of the fluent style API to access anything in Microsoft Graph

client := msgraphsdk.NewGraphServiceClient(adapter)

// the following block uses the fluent style API provided by the client to build a request to get the current user’s OneDrive information

result, err := client
      .Me()
      .Drive()
      .Get(nil)

if err != nil {
   fmt.Printf("Error getting the drive: %v\n", err)
}

fmt.Printf("Found Drive : %v\n", result.GetId())