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Mencantumkan semua metadata koneksi dalam project.

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Untuk dokumentasi mendetail yang menyertakan contoh kode ini, lihat artikel berikut:

• Library Klien BigQuery Connection API

Contoh kode

Go

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Go di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Go API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

// The bigquery_connection_quickstart application demonstrates basic usage of the
// BigQuery connection API.
package main

import (
	"bytes"
	"context"
	"flag"
	"fmt"
	"log"
	"time"

	connection "cloud.google.com/go/bigquery/connection/apiv1"
	"google.golang.org/api/iterator"
	connectionpb "google.golang.org/genproto/googleapis/cloud/bigquery/connection/v1"
)

func main() {

	// Define two command line flags for controlling the behavior of this quickstart.
	projectID := flag.String("project_id", "", "Cloud Project ID, used for session creation.")
	location := flag.String("location", "US", "BigQuery location used for interactions.")

	// Parse flags and do some minimal validation.
	flag.Parse()
	if *projectID == "" {
		log.Fatal("empty --project_id specified, please provide a valid project ID")
	}
	if *location == "" {
		log.Fatal("empty --location specified, please provide a valid location")
	}

	ctx := context.Background()
	connClient, err := connection.NewClient(ctx)
	if err != nil {
		log.Fatalf("NewClient: %v", err)
	}
	defer connClient.Close()

	s, err := reportConnections(ctx, connClient, *projectID, *location)
	if err != nil {
		log.Fatalf("printCapacityCommitments: %v", err)
	}
	fmt.Println(s)
}

// reportConnections gathers basic information about existing connections in a given project and location.
func reportConnections(ctx context.Context, client *connection.Client, projectID, location string) (string, error) {
	var buf bytes.Buffer
	fmt.Fprintf(&buf, "Current connections defined in project %s in location %s:\n", projectID, location)

	req := &connectionpb.ListConnectionsRequest{
		Parent: fmt.Sprintf("projects/%s/locations/%s", projectID, location),
	}
	totalConnections := 0
	it := client.ListConnections(ctx, req)
	for {
		conn, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return "", err
		}
		fmt.Fprintf(&buf, "\tConnection %s was created %s\n", conn.GetName(), unixMillisToTime(conn.GetCreationTime()).Format(time.RFC822Z))
		totalConnections++
	}
	fmt.Fprintf(&buf, "\n%d connections processed.\n", totalConnections)
	return buf.String(), nil
}

// unixMillisToTime converts epoch-millisecond representations used by the API into a time.Time representation.
func unixMillisToTime(m int64) time.Time {
	if m == 0 {
		return time.Time{}
	}
	return time.Unix(0, m*1e6)
}

Java

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Java di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Java API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

import com.google.cloud.bigquery.connection.v1.ListConnectionsRequest;
import com.google.cloud.bigquery.connection.v1.LocationName;
import com.google.cloud.bigqueryconnection.v1.ConnectionServiceClient;
import java.io.IOException;

// Sample to demonstrates basic usage of the BigQuery connection API.
public class QuickstartSample {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "MY_PROJECT_ID";
    String location = "MY_LOCATION";
    listConnections(projectId, location);
  }

  static void listConnections(String projectId, String location) throws IOException {
    try (ConnectionServiceClient connectionServiceClient = ConnectionServiceClient.create()) {
      LocationName parent = LocationName.of(projectId, location);
      int pageSize = 10;
      ListConnectionsRequest request =
          ListConnectionsRequest.newBuilder()
              .setParent(parent.toString())
              .setPageSize(pageSize)
              .build();
      ConnectionServiceClient.ListConnectionsPagedResponse response =
          connectionServiceClient.listConnections(request);

      // Print the results.
      System.out.println("List of connections:");
      response
          .iterateAll()
          .forEach(connection -> System.out.println("Connection Name: " + connection.getName()));
    }
  }
}

Node.js

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Node.js di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Node.js API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

// Imports the Google Cloud client library
const {
  ConnectionServiceClient,
} = require('@google-cloud/bigquery-connection');

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

// project = 'my-project' // Project to list connections for.

const parent = `projects/${project}/locations/US`;

async function listConnections() {
  const [connections] = await client.listConnections({
    parent: parent,
  });

  console.info(`found ${connections.length} connections:`);
  console.info(connections);
}
const listConnectionsResponse = listConnections();

Python

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Python di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Python API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

from google.cloud import bigquery_connection_v1 as bq_connection

def main(
    project_id: str = "your-project-id", location: str = "US", transport: str = "grpc"
) -> None:
    """Prints details and summary information about connections for a given admin project and location"""
    client = bq_connection.ConnectionServiceClient(transport=transport)
    print(f"List of connections in project {project_id} in location {location}")
    req = bq_connection.ListConnectionsRequest(
        parent=client.common_location_path(project_id, location)
    )
    for connection in client.list_connections(request=req):
        print(f"\tConnection {connection.friendly_name} ({connection.name})")

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