列出支持的数据源

列出 BigQuery Data Transfer Service 支持的数据源。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• BigQuery Data Transfer Service API 客户端库

代码示例

C#

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 C# 设置说明进行操作。 如需了解详情，请参阅 BigQuery C# API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

using Google.Api.Gax.ResourceNames;
using Google.Cloud.BigQuery.DataTransfer.V1;
using System;

namespace GoogleCloudSamples
{
    public class QuickStart
    {
        public static void Main(string[] args)
        {
            // Instantiates a client
            DataTransferServiceClient client = DataTransferServiceClient.Create();

            // Your Google Cloud Platform project ID
            string projectId = "YOUR-PROJECT-ID";

            ProjectName project = ProjectName.FromProject(projectId);
            var sources = client.ListDataSources(project);
            Console.WriteLine("Supported Data Sources:");
            foreach (DataSource source in sources)
            {
                Console.WriteLine(
                    $"{source.DataSourceId}: " +
                    $"{source.DisplayName} ({source.Description})");
            }
        }
    }
}

Go

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Go 设置说明进行操作。 如需了解详情，请参阅 BigQuery Go API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

// Sample bigquery-quickstart creates a Google BigQuery dataset.
package main

import (
	"context"
	"fmt"
	"log"

	"google.golang.org/api/iterator"

	// Imports the BigQuery Data Transfer client package.
	datatransfer "cloud.google.com/go/bigquery/datatransfer/apiv1"
	"cloud.google.com/go/bigquery/datatransfer/apiv1/datatransferpb"
)

func main() {
	ctx := context.Background()

	// Sets your Google Cloud Platform project ID.
	projectID := "YOUR_PROJECT_ID"

	// Creates a client.
	client, err := datatransfer.NewClient(ctx)
	if err != nil {
		log.Fatalf("Failed to create client: %v", err)
	}
	defer client.Close()

	req := &datatransferpb.ListDataSourcesRequest{
		Parent: fmt.Sprintf("projects/%s", projectID),
	}
	it := client.ListDataSources(ctx, req)
	fmt.Println("Supported Data Sources:")
	for {
		ds, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			log.Fatalf("Failed to list sources: %v", err)
		}
		fmt.Println(ds.DisplayName)
		fmt.Println("\tID: ", ds.DataSourceId)
		fmt.Println("\tFull path: ", ds.Name)
		fmt.Println("\tDescription: ", ds.Description)
	}
}

Java

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Java 设置说明进行操作。 如需了解详情，请参阅 BigQuery Java API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

// Imports the Google Cloud client library

import com.google.cloud.bigquery.datatransfer.v1.DataSource;
import com.google.cloud.bigquery.datatransfer.v1.DataTransferServiceClient;
import com.google.cloud.bigquery.datatransfer.v1.DataTransferServiceClient.ListDataSourcesPagedResponse;
import com.google.cloud.bigquery.datatransfer.v1.ListDataSourcesRequest;

public class QuickstartSample {
  /** List available data sources for the BigQuery Data Transfer service. */
  public static void main(String... args) throws Exception {
    // Sets your Google Cloud Platform project ID.
    // String projectId = "YOUR_PROJECT_ID";
    String projectId = args[0];

    // Instantiate a client. If you don't specify credentials when constructing a client, the
    // client library will look for credentials in the environment, such as the
    // GOOGLE_APPLICATION_CREDENTIALS environment variable.
    try (DataTransferServiceClient client = DataTransferServiceClient.create()) {
      // Request the list of available data sources.
      String parent = String.format("projects/%s", projectId);
      ListDataSourcesRequest request =
          ListDataSourcesRequest.newBuilder().setParent(parent).build();
      ListDataSourcesPagedResponse response = client.listDataSources(request);

      // Print the results.
      System.out.println("Supported Data Sources:");
      for (DataSource dataSource : response.iterateAll()) {
        System.out.println(dataSource.getDisplayName());
        System.out.printf("\tID: %s%n", dataSource.getDataSourceId());
        System.out.printf("\tFull path: %s%n", dataSource.getName());
        System.out.printf("\tDescription: %s%n", dataSource.getDescription());
      }
    }
  }
}

Node.js

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Node.js 设置说明进行操作。 如需了解详情，请参阅 BigQuery Node.js API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

const bigqueryDataTransfer = require('@google-cloud/bigquery-data-transfer');
const client = new bigqueryDataTransfer.v1.DataTransferServiceClient();

async function quickstart() {
  const projectId = await client.getProjectId();

  // Iterate over all elements.
  const formattedParent = client.projectPath(projectId, 'us-central1');
  let nextRequest = {parent: formattedParent};
  const options = {autoPaginate: false};
  console.log('Data sources:');
  do {
    // Fetch the next page.
    const responses = await client.listDataSources(nextRequest, options);
    // The actual resources in a response.
    const resources = responses[0];
    // The next request if the response shows that there are more responses.
    nextRequest = responses[1];
    // The actual response object, if necessary.
    // const rawResponse = responses[2];
    resources.forEach(resource => {
      console.log(`  ${resource.name}`);
    });
  } while (nextRequest);

  console.log('\n\n');
  console.log('Sources via stream:');

  client
    .listDataSourcesStream({parent: formattedParent})
    .on('data', element => {
      console.log(`  ${element.name}`);
    });
}
quickstart();

PHP

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 PHP 设置说明进行操作。 如需了解详情，请参阅 BigQuery PHP API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

# Includes the autoloader for libraries installed with composer
require __DIR__ . '/vendor/autoload.php';

# Imports the Google Cloud client library
use Google\Cloud\BigQuery\DataTransfer\V1\DataTransferServiceClient;

# Instantiates a client
$bqdtsClient = new DataTransferServiceClient();

# Your Google Cloud Platform project ID
$projectId = 'YOUR_PROJECT_ID';
$parent = sprintf('projects/%s/locations/us', $projectId);

try {
    echo 'Supported Data Sources:', PHP_EOL;
    $pagedResponse = $bqdtsClient->listDataSources($parent);
    foreach ($pagedResponse->iterateAllElements() as $dataSource) {
        echo 'Data source: ', $dataSource->getDisplayName(), PHP_EOL;
        echo 'ID: ', $dataSource->getDataSourceId(), PHP_EOL;
        echo 'Full path: ', $dataSource->getName(), PHP_EOL;
        echo 'Description: ', $dataSource->getDescription(), PHP_EOL;
    }
} finally {
    $bqdtsClient->close();
}

Python

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Python 设置说明进行操作。 如需了解详情，请参阅 BigQuery Python API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

from google.cloud import bigquery_datatransfer

client = bigquery_datatransfer.DataTransferServiceClient()

# TODO: Update to your project ID.
project_id = "my-project"

# Get the full path to your project.
parent = client.common_project_path(project_id)

print("Supported Data Sources:")

# Iterate over all possible data sources.
for data_source in client.list_data_sources(parent=parent):
    print("{}:".format(data_source.display_name))
    print("\tID: {}".format(data_source.data_source_id))
    print("\tFull path: {}".format(data_source.name))
    print("\tDescription: {}".format(data_source.description))

Ruby

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Ruby 设置说明进行操作。 如需了解详情，请参阅 BigQuery Ruby API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为客户端库设置身份验证。

# Imports the Google Cloud client library
require "google/cloud/bigquery/data_transfer"

# Your Google Cloud Platform project ID
# project_id = "YOUR_PROJECT_ID"

# Instantiate a client
data_transfer = Google::Cloud::Bigquery::DataTransfer.data_transfer_service

# Get the full path to your project.
project_path = data_transfer.project_path project: project_id

puts "Supported Data Sources:"

# Iterate over all possible data sources.
data_transfer.list_data_sources(parent: project_path).each do |data_source|
  puts "Data source: #{data_source.display_name}"
  puts "ID: #{data_source.data_source_id}"
  puts "Full path: #{data_source.name}"
  puts "Description: #{data_source.description}"
end

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。