List Groups using Workspace Directory API in golang

main.go

package main

/*


see https://blog.salrashid.dev/articles/2022/search_group_membership/

*/

import (
	"fmt"
	"log"

	"context"

	"golang.org/x/oauth2/google"
	admin "google.golang.org/api/admin/directory/v1"
	"google.golang.org/api/option"
)

func main() {
	ctx := context.Background()
	// serviceAccountFile := "/home/srashid/gcp_misc/certs/google_apps_svc_dwd.json"
	// serviceAccountJSON, err := ioutil.ReadFile(serviceAccountFile)
	// if err != nil {
	// 	log.Fatal(err)
	// }
	// config, err := google.JWTConfigFromJSON(serviceAccountJSON, admin.AdminDirectoryUserReadonlyScope, admin.AdminDirectoryGroupReadonlyScope)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	// ts := config.TokenSource(ctx)

	ts, err := google.DefaultTokenSource(ctx)
	if err != nil {
		log.Fatal(err)
	}

	srv, err := admin.NewService(ctx, option.WithTokenSource(ts))
	if err != nil {
		log.Fatal(err)
	}

	err = srv.Groups.List().Customer("C023zw3x8").Pages(ctx, func(groupsReport *admin.Groups) error {
		for _, m := range groupsReport.Groups {
			fmt.Printf("%s (%s)\n", m.Email, m.Id)
		}
		return nil
	})
	if err != nil {
		fmt.Printf("Error %v", err)
		return
	}
}