Get job properties

Retrieve the properties of a job for a given job ID.

Explore further

For detailed documentation that includes this code sample, see the following:

• Managing jobs

Code sample

Go

Before trying this sample, follow the Go setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Go API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/bigquery"
)

// getJobInfo demonstrates retrieval of a job, which can be used to monitor
// completion or print metadata about the job.
func getJobInfo(w io.Writer, projectID, jobID string) error {
	// projectID := "my-project-id"
	// jobID := "my-job-id"
	ctx := context.Background()

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

	job, err := client.JobFromID(ctx, jobID)
	if err != nil {
		return err
	}

	status := job.LastStatus()
	state := "Unknown"
	switch status.State {
	case bigquery.Pending:
		state = "Pending"
	case bigquery.Running:
		state = "Running"
	case bigquery.Done:
		state = "Done"
	}
	fmt.Fprintf(w, "Job %s was created %v and is in state %s\n",
		jobID, status.Statistics.CreationTime, state)
	return nil
}

Java

Before trying this sample, follow the Java setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Java API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Job;
import com.google.cloud.bigquery.JobId;

// Sample to get a job
public class GetJob {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String jobName = "MY_JOB_NAME";
    getJob(jobName);
  }

  public static void getJob(String jobName) {
    try {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

      JobId jobId = JobId.of(jobName);
      Job job = bigquery.getJob(jobId);
      System.out.println("Job retrieved successfully");
    } catch (BigQueryException e) {
      System.out.println("Job not retrieved. \n" + e.toString());
    }
  }
}

Node.js

Before trying this sample, follow the Node.js setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Node.js API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

// Import the Google Cloud client library
const {BigQuery} = require('@google-cloud/bigquery');
const bigquery = new BigQuery();

async function getJob() {
  // Get job properties.

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const jobId = "existing-job-id";

  // Create a job reference
  const job = bigquery.job(jobId);

  // Retrieve job
  const [jobResult] = await job.get();

  console.log(jobResult.metadata.jobReference);
}

Python

Before trying this sample, follow the Python setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Python API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

from google.cloud import bigquery


def get_job(
    client: bigquery.Client,
    location: str = "us",
    job_id: str = "abcd-efgh-ijkl-mnop",
) -> None:
    job = client.get_job(job_id, location=location)

    # All job classes have "location" and "job_id" string properties.
    # Use these properties for job operations such as "cancel_job" and
    # "delete_job".
    print(f"{job.location}:{job.job_id}")
    print(f"Type: {job.job_type}")
    print(f"State: {job.state}")
    print(f"Created: {job.created.isoformat()}")

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser.