feat: Support scopes field in impersonated json by sai-sunder-s · Pull Request #15675 · googleapis/google-cloud-cpp
If impersonated json contains scopes field and the user does not provide scopes through options, then use the scopes field value for the impersonated token.
{
"delegates": [],
"scopes": [
"https://www.googleapis.com/auth/drive"
],
"service_account_impersonation_url": "https://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/service-account-email@project-name.iam.gserviceaccount.com:generateAccessToken",
"source_credentials": {
"client_id": "oauth_client_id",
"client_secret": "oauth_client_secret",
"refresh_token": "user_refresh_token",
"type": "authorized_user",
"universe_domain": "googleapis.com"
},
"type": "impersonated_service_account"
}