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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}")

func createEventDrivenAWSTransfer(w io.Writer, projectID string, s3SourceBucket string, gcsSinkBucket string, sqsQueueARN string) (*storagetransferpb.TransferJob, error) {
	// Your Google Cloud Project ID.
	// projectID := "my-project-id"

	// The name of the source AWS S3 bucket.
	// s3SourceBucket := "my-source-bucket"

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

	// The Amazon Resource Name (ARN) of the AWS SNS queue to subscribe the event driven transfer to.
	// sqsQueueARN := "arn:aws:sqs:us-east-1:1234567891011:s3-notification-queue"

	// The AWS access key credential, should be accessed via environment variable for security
	awsAccessKeyID := os.Getenv("AWS_ACCESS_KEY_ID")

	// The AWS secret key credential, should be accessed via environment variable for security
	awsSecretKey := os.Getenv("AWS_SECRET_ACCESS_KEY")

	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_AwsS3DataSource{
					AwsS3DataSource: &storagetransferpb.AwsS3Data{
						BucketName: s3SourceBucket,
						AwsAccessKey: &storagetransferpb.AwsAccessKey{
							AccessKeyId:     awsAccessKeyID,
							SecretAccessKey: awsSecretKey,
						}},
				},
				DataSink: &storagetransferpb.TransferSpec_GcsDataSink{
					GcsDataSink: &storagetransferpb.GcsData{BucketName: gcsSinkBucket}},
			},
			EventStream: &storagetransferpb.EventStream{Name: sqsQueueARN},
			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", s3SourceBucket, gcsSinkBucket, sqsQueueARN, 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 CreateEventDrivenAwsTransfer {
  public static void main(String[] args) throws Exception {
    // Your Google Cloud Project ID
    String projectId = "your-project-id";

    // The name of the source AWS bucket to transfer data from
    String s3SourceBucket = "yourS3SourceBucket";

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

    // The ARN of the SQS queue to subscribe to
    String sqsQueueArn = "arn:aws:sqs:us-east-1:1234567891011:s3-notification-queue";

    createEventDrivenAwsTransfer(projectId, s3SourceBucket, gcsSinkBucket, sqsQueueArn);
  }

  public static void createEventDrivenAwsTransfer(
      String projectId, String s3SourceBucket, String gcsSinkBucket, String sqsQueueArn)
      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()) {

      // The ID used to access your AWS account. Should be accessed via environment variable.
      String awsAccessKeyId = System.getenv("AWS_ACCESS_KEY_ID");

      // The Secret Key used to access your AWS account. Should be accessed via environment
      // variable.
      String awsSecretAccessKey = System.getenv("AWS_SECRET_ACCESS_KEY");

      TransferTypes.TransferJob transferJob =
          TransferTypes.TransferJob.newBuilder()
              .setProjectId(projectId)
              .setTransferSpec(
                  TransferTypes.TransferSpec.newBuilder()
                      .setAwsS3DataSource(
                          TransferTypes.AwsS3Data.newBuilder()
                              .setBucketName(s3SourceBucket)
                              .setAwsAccessKey(
                                  TransferTypes.AwsAccessKey.newBuilder()
                                      .setAccessKeyId(awsAccessKeyId)
                                      .setSecretAccessKey(awsSecretAccessKey))
                              .build())
                      .setGcsDataSink(
                          TransferTypes.GcsData.newBuilder().setBucketName(gcsSinkBucket)))
              .setStatus(TransferTypes.TransferJob.Status.ENABLED)
              .setEventStream(TransferTypes.EventStream.newBuilder().setName(sqsQueueArn).build())
              .build();

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

      System.out.println(
          "Created a transfer job from "
              + s3SourceBucket
              + " to "
              + gcsSinkBucket
              + " subscribed to "
              + sqsQueueArn
              + " 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'

// AWS S3 source bucket name
// s3SourceBucket = 'my-s3-source-bucket'

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

// The ARN of the SQS queue to subscribe to
// sqsQueueArn = 'arn:aws:sqs:us-east-1:1234567891011:s3-notification-queue'

// AWS Access Key ID. Should be accessed via environment variable for security.
// awsAccessKeyId = 'AKIA...'

// AWS Secret Access Key. Should be accessed via environment variable for security.
// awsSecretAccessKey = 'HEAoMK2.../...ku8'

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

/**
 * Creates an event driven transfer that tracks an SQS queue.
 */
async function createEventDrivenAwsTransfer() {
  const [transferJob] = await client.createTransferJob({
    transferJob: {
      projectId,
      status: 'ENABLED',
      transferSpec: {
        awsS3DataSource: {
          bucketName: s3SourceBucket,
          awsAccessKey: {
            accessKeyId: awsAccessKeyId,
            secretAccessKey: awsSecretAccessKey,
          },
        },
        gcsDataSink: {
          bucketName: gcsSinkBucket,
        },
      },
      eventStream: {
        name: sqsQueueArn,
      },
    },
  });

  console.log(
    `Created an event driven transfer from '${s3SourceBucket}' to '${gcsSinkBucket}' with name ${transferJob.name}`
  );
}

createEventDrivenAwsTransfer();

from google.cloud import storage_transfer


def create_event_driven_aws_transfer(
    project_id: str,
    description: str,
    source_s3_bucket: str,
    sink_gcs_bucket: str,
    sqs_queue_arn: str,
    aws_access_key_id: str,
    aws_secret_access_key: str,
):
    """Create an event driven transfer between two GCS buckets that tracks an AWS SQS queue"""

    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 an SQS queue'

    # AWS S3 source bucket name
    # source_s3_bucket = 'my-s3-source-bucket'

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

    # The ARN of the SQS queue to subscribe to
    # pubsub_id = 'arn:aws:sqs:us-east-1:1234567891011:s3-notification-queue'

    # AWS Access Key ID. Should be accessed via environment variable for security purposes.
    # aws_access_key_id = 'AKIA...'

    # AWS Secret Access Key. Should be accessed via environment variable for security purposes.
    # aws_secret_access_key = 'HEAoMK2.../...ku8'

    transfer_job_request = storage_transfer.CreateTransferJobRequest(
        {
            "transfer_job": {
                "project_id": project_id,
                "description": description,
                "status": storage_transfer.TransferJob.Status.ENABLED,
                "transfer_spec": {
                    "aws_s3_data_source": {
                        "bucket_name": source_s3_bucket,
                        "aws_access_key": {
                            "access_key_id": aws_access_key_id,
                            "secret_access_key": aws_secret_access_key,
                        },
                    },
                    "gcs_data_sink": {
                        "bucket_name": sink_gcs_bucket,
                    },
                },
                "event_stream": {
                    "name": sqs_queue_arn,
                },
            },
        }
    )

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