bulk_export.go

import "google.golang.org/api/iterator"

client, err := app.Auth(context.Background())
if err != nil {
        log.Fatal(err)
}

// Iterating by pages, 1000 users at a time.
pager := iterator.NewPager(client.Users(context.Background(), ""), 1000, "")
for {
        var users []*auth.ExportedUserRecord
        nextPageToken, err := pager.NextPage(&users)
        if err != nil {
                log.Fatal(err)
        }
        for _, u := range users {
                log.Printf("User: %v\n", u)
        }
        if nextPageToken == "" {
                break
        }
}

iter := client.Users(context.Background(), "")
for {
        user, err := iter.Next()
        if err == iterator.Done {
                break
        }
        if err != nil {
                log.Fatal(err)
        }
        log.Printf("User: %v\n", user)
}