Update transfer configuration credentials

Change the user attached to a transfer configuration.

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Code sample

Java

import com.google.api.gax.rpc.ApiException;
import com.google.cloud.bigquery.datatransfer.v1.DataTransferServiceClient;
import com.google.cloud.bigquery.datatransfer.v1.TransferConfig;
import com.google.cloud.bigquery.datatransfer.v1.UpdateTransferConfigRequest;
import com.google.protobuf.FieldMask;
import com.google.protobuf.util.FieldMaskUtil;
import java.io.IOException;

// Sample to update credentials in transfer config.
public class UpdateCredentials {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String configId = "MY_CONFIG_ID";
    String serviceAccount = "MY_SERVICE_ACCOUNT";
    TransferConfig transferConfig = TransferConfig.newBuilder().setName(configId).build();
    FieldMask updateMask = FieldMaskUtil.fromString("service_account_name");
    updateCredentials(transferConfig, serviceAccount, updateMask);
  }

  public static void updateCredentials(
      TransferConfig transferConfig, String serviceAccount, FieldMask updateMask)
      throws IOException {
    try (DataTransferServiceClient dataTransferServiceClient = DataTransferServiceClient.create()) {
      UpdateTransferConfigRequest request =
          UpdateTransferConfigRequest.newBuilder()
              .setTransferConfig(transferConfig)
              .setUpdateMask(updateMask)
              .setServiceAccountName(serviceAccount)
              .build();
      dataTransferServiceClient.updateTransferConfig(request);
      System.out.println("Credentials updated successfully");
    } catch (ApiException ex) {
      System.out.print("Credentials was not updated." + ex.toString());
    }
  }
}

Python

from google.cloud import bigquery_datatransfer
from google.protobuf import field_mask_pb2

transfer_client = bigquery_datatransfer.DataTransferServiceClient()

service_account_name = "abcdef-test-sa@abcdef-test.iam.gserviceaccount.com"
transfer_config_name = "projects/1234/locations/us/transferConfigs/abcd"

transfer_config = bigquery_datatransfer.TransferConfig(name=transfer_config_name)

transfer_config = transfer_client.update_transfer_config(
    {
        "transfer_config": transfer_config,
        "update_mask": field_mask_pb2.FieldMask(paths=["service_account_name"]),
        "service_account_name": service_account_name,
    }
)

print("Updated config: '{}'".format(transfer_config.name))

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