Golang gads包无文件认证

import (
    "context"
    "fmt"
    "github.com/golang/glog"
    "github.com/golang/oauth2"
    "github.com/golang/oauth2/google"
    "github.com/golang/gads"
    "github.com/golang/gads/auth"
)

func main() {
    ctx := context.Background()

    // 从Secret Manager获取凭据
    creds, err := auth.GetCredentialsFromSecretManager(ctx, "YOUR_SECRET_NAME")
    if err != nil {
        glog.Fatalf("Failed to get credentials: %v", err)
    }

    // 创建AdWords客户端
    config := &oauth2.Config{
        ClientID:     creds.ClientID,
        ClientSecret: creds.ClientSecret,
        Scopes:       []string{gads.AdwordsScope},
        Endpoint:     google.Endpoint,
    }
    token := &oauth2.Token{
        AccessToken:  creds.AccessToken,
        RefreshToken: creds.RefreshToken,
        Expiry:       creds.Expiry,
    }
    client := config.Client(ctx, token)

    // 使用AdWords客户端进行操作
    service := gads.NewAdWordsService(client)
    // ...
}