List routines

import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/bigquery"
	"google.golang.org/api/iterator"
)

// listRoutines demonstrates listing the routines within a dataset.
func listRoutines(w io.Writer, projectID, datasetID string) error {
	// projectID := "my-project-id"
	// datasetID := "mydatasetid"
	// routineID := "myroutineid"
	ctx := context.Background()

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

	it := client.Dataset(datasetID).Routines(ctx)
	for {
		r, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return fmt.Errorf("error during iteration: %w", err)
		}
		fmt.Fprintf(w, "Routine: %q\n", r.RoutineID)
	}
	return nil
}

import com.google.api.gax.paging.Page;
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Routine;

// Sample to get list of routines
public class ListRoutines {

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

  public static void listRoutines(String datasetName) {
    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();

      Page<Routine> routines =
          bigquery.listRoutines(datasetName, BigQuery.RoutineListOption.pageSize(100));
      if (routines == null) {
        System.out.println("Dataset does not contain any routines.");
        return;
      }
      routines
          .iterateAll()
          .forEach(routine -> System.out.printf("Success! Routine ID: %s", routine.getRoutineId()));
    } catch (BigQueryException e) {
      System.out.println("Routines not listed in dataset due to error: \n" + e.toString());
    }
  }
}

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

async function listRoutines() {
  // Lists routines in "my_dataset".

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const datasetId = 'my_dataset';

  // List all routines in the dataset
  const [routines] = await bigquery.dataset(datasetId).getRoutines();

  console.log('Routines:');
  routines.forEach(routine => console.log(routine.id));
}
listRoutines();

from google.cloud import bigquery

# Construct a BigQuery client object.
client = bigquery.Client()

# TODO(developer): Set dataset_id to the ID of the dataset that contains
#                  the routines you are listing.
# dataset_id = 'your-project.your_dataset'

routines = client.list_routines(dataset_id)  # Make an API request.

print("Routines contained in dataset {}:".format(dataset_id))
for routine in routines:
    print(routine.reference)