Below you will find pages that utilize the taxonomy term “Domain-Wide Delegation”

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Delegate domain-wide authority using Golang

I’d not used Google’s Domain-wide Delegation from Golang and struggled to find example code.

Google provides Java and Python samples.

Google has a myriad packages implementing its OAuth security and it’s always daunting trying to determine which one to use.

As it happens, I backed into the solution through client.Options

ctx := context.Background()

// Google Workspace APIS don't use IAM do use OAuth scopes
// Scopes used here must be reflected in the scopes on the
// Google Workspace Domain-wide Delegate client
scopes := []string{ ... }

// Delegates on behalf of this Google Workspace user
subject := "a@google-workspace-email.com"

creds, _ := google.FindDefaultCredentialsWithParams(
    ctx,
    google.CredentialsParams{
        Scopes: scopes,
        Subject: subject,
    },
)
opts := option.WithCredentials(creds)
service, _ := admin.NewService(ctx, opts)

In this case NewService applies to Google’s Golang Admin SDK API although the pattern of NewService(ctx) or NewService(ctx, opts) where opts is a option.ClientOption is consistent across Google’s Golang libraries.

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