Event-driven transfers from Cloud Storage

func createEventDrivenGCSTransfer(w io.Writer, projectID string, gcsSourceBucket string, gcsSinkBucket string, pubSubId string) (*storagetransferpb.TransferJob, error) {
	// Your Google Cloud Project ID.
	// projectID := "my-project-id"

	// The name of the source GCS bucket.
	// gcsSourceBucket := "my-source-bucket"

	// The name of the GCS bucket to transfer objects to.
	// gcsSinkBucket := "my-sink-bucket"

	// The Pub/Sub topic to subscribe the event driven transfer to.
	// pubSubID := "projects/PROJECT_NAME/subscriptions/SUBSCRIPTION_ID"

	ctx := context.Background()
	client, err := storagetransfer.NewClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("storagetransfer.NewClient: %w", err)
	}
	defer client.Close()

	req := &storagetransferpb.CreateTransferJobRequest{
		TransferJob: &storagetransferpb.TransferJob{
			ProjectId: projectID,
			TransferSpec: &storagetransferpb.TransferSpec{
				DataSource: &storagetransferpb.TransferSpec_GcsDataSource{
					GcsDataSource: &storagetransferpb.GcsData{BucketName: gcsSourceBucket}},
				DataSink: &storagetransferpb.TransferSpec_GcsDataSink{
					GcsDataSink: &storagetransferpb.GcsData{BucketName: gcsSinkBucket}},
			},
			EventStream: &storagetransferpb.EventStream{Name: pubSubId},
			Status:      storagetransferpb.TransferJob_ENABLED,
		},
	}
	resp, err := client.CreateTransferJob(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("failed to create transfer job: %w", err)
	}

	fmt.Fprintf(w, "Created an event driven transfer job from %v to %v subscribed to %v with name %v", gcsSourceBucket, gcsSinkBucket, pubSubId, resp.Name)
	return resp, nil
}

import com.google.storagetransfer.v1.proto.StorageTransferServiceClient;
import com.google.storagetransfer.v1.proto.TransferProto;
import com.google.storagetransfer.v1.proto.TransferTypes;

public class CreateEventDrivenGcsTransfer {
  public static void main(String[] args) throws Exception {
    // Your Google Cloud Project ID
    String projectId = "your-project-id";

    // The name of the GCS AWS bucket to transfer data from
    String gcsSourceBucket = "your-gcs-source-bucket";

    // The name of the GCS bucket to transfer data to
    String gcsSinkBucket = "your-gcs-sink-bucket";

    // The ARN of the PubSub queue to subscribe to
    String sqsQueueArn = "projects/PROJECT_NAME/subscriptions/SUBSCRIPTION_ID";

    createEventDrivenGcsTransfer(projectId, gcsSourceBucket, gcsSinkBucket, sqsQueueArn);
  }

  public static void createEventDrivenGcsTransfer(
      String projectId, String gcsSourceBucket, String gcsSinkBucket, String pubSubId)
      throws Exception {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources,
    // or use "try-with-close" statement to do this automatically.
    try (StorageTransferServiceClient storageTransfer = StorageTransferServiceClient.create()) {

      TransferTypes.TransferJob transferJob =
          TransferTypes.TransferJob.newBuilder()
              .setProjectId(projectId)
              .setTransferSpec(
                  TransferTypes.TransferSpec.newBuilder()
                      .setGcsDataSource(
                          TransferTypes.GcsData.newBuilder().setBucketName(gcsSourceBucket))
                      .setGcsDataSink(
                          TransferTypes.GcsData.newBuilder().setBucketName(gcsSinkBucket)))
              .setStatus(TransferTypes.TransferJob.Status.ENABLED)
              .setEventStream(TransferTypes.EventStream.newBuilder().setName(pubSubId).build())
              .build();

      TransferTypes.TransferJob response =
          storageTransfer.createTransferJob(
              TransferProto.CreateTransferJobRequest.newBuilder()
                  .setTransferJob(transferJob)
                  .build());

      System.out.println(
          "Created a transfer job between from "
              + gcsSourceBucket
              + " to "
              + gcsSinkBucket
              + " subscribed to "
              + pubSubId
              + " with name "
              + response.getName());
    }
  }
}

// Imports the Google Cloud client library
const {
  StorageTransferServiceClient,
} = require('@google-cloud/storage-transfer');

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of the Google Cloud Platform Project that owns the job
// projectId = 'my-project-id'

// Google Cloud Storage source bucket name
// gcsSourceBucket = 'my-gcs-source-bucket'

// Google Cloud Storage destination bucket name
// gcsSinkBucket = 'my-gcs-destination-bucket'

// The subscription ID to a Pubsub queue to track
// pubsubId = 'projects/PROJECT_NAME/subscriptions/SUBSCRIPTION_ID'

// Creates a client
const client = new StorageTransferServiceClient();

/**
 * Creates an event driven transfer that tracks a Pubsub subscription.
 */
async function createEventDrivenGcsTransfer() {
  const [transferJob] = await client.createTransferJob({
    transferJob: {
      projectId,
      status: 'ENABLED',
      transferSpec: {
        gcsDataSource: {
          bucketName: gcsSourceBucket,
        },
        gcsDataSink: {
          bucketName: gcsSinkBucket,
        },
      },
      eventStream: {
        name: pubsubId,
      },
    },
  });

  console.log(
    `Created an event driven transfer from '${gcsSourceBucket}' to '${gcsSinkBucket}' with name ${transferJob.name}`
  );
}

createEventDrivenGcsTransfer();

from google.cloud import storage_transfer


def create_event_driven_gcs_transfer(
    project_id: str,
    description: str,
    source_bucket: str,
    sink_bucket: str,
    pubsub_id: str,
):
    """Create an event driven transfer between two GCS buckets that tracks a PubSub subscription"""

    client = storage_transfer.StorageTransferServiceClient()

    # The ID of the Google Cloud Platform Project that owns the job
    # project_id = 'my-project-id'

    # A description of this job
    # description = 'Creates an event-driven transfer that tracks a pubsub subscription'

    # Google Cloud Storage source bucket name
    # source_bucket = 'my-gcs-source-bucket'

    # Google Cloud Storage destination bucket name
    # sink_bucket = 'my-gcs-destination-bucket'

    # The Pubsub Subscription ID to track
    # pubsub_id = 'projects/PROJECT_NAME/subscriptions/SUBSCRIPTION_ID'

    transfer_job_request = storage_transfer.CreateTransferJobRequest(
        {
            "transfer_job": {
                "project_id": project_id,
                "description": description,
                "status": storage_transfer.TransferJob.Status.ENABLED,
                "transfer_spec": {
                    "gcs_data_source": {
                        "bucket_name": source_bucket,
                    },
                    "gcs_data_sink": {
                        "bucket_name": sink_bucket,
                    },
                },
                "event_stream": {
                    "name": pubsub_id,
                },
            },
        }
    )

    result = client.create_transfer_job(transfer_job_request)
    print(f"Created transferJob: {result.name}")