php - PHP 中当前 Google API 的 BigQuery 示例

Question

所有关于示例的问题都好像有 2 年的历史了，我找不到适用于当前 API 客户端版本 (https://github.com/google/google-api-php-client) 的任何工作示例。每个人都遗漏了一些东西或抛出异常....

有人可以提供工作示例吗？任何地方都没有任何文档。

这是最有效的:

<?php
    require_once 'inc/google-api/autoload.php'; // or wherever autoload.php is located

    $client = new Google_Client();
    $client->setApplicationName("whatever");
    $client->setDeveloperKey("some key");

    $service = new Google_Service_Bigquery($client);



    $postBody = "[
            'datasetReference' => [
                    'datasetId' => $datasetId,
                    'projectId' => $projectId,
            ],
            'friendlyName' => $name,
            'description' => $description,
            'access' => [
                    ['role' => 'READER', 'specialGroup' => 'projectReaders'],
                    ['role' => 'WRITER', 'specialGroup' => 'projectWriters'],
                    ['role' => 'OWNER', 'specialGroup' => 'projectOwners'],
            ],
    ]";

    $dataset = $service->datasets->insert($projectId, new Google_Dataset($postBody));

    $postBody = "[
            'tableReference' => [
                    'projectId' => 'test_project_id',
                    'datasetId' => 'test_data_set',
                    'tableId' => 'test_data_table'
            ]
    ]";

    $table = $service->tables->insert($projectId, $datasetId, new Google_Table($postBody));
?>

但我收到有关 Google_Dataset 和 Google_Table 未定义的 fatal error ...

Answer 1

这是一段代码

• 正确创建一个 Google_Client
• 异步运行作业
• 显示正在运行的作业 ID 和状态

你需要:

• 已创建服务帐户(类似于 ...@developer.gserviceaccount.com)
• 您的 key 文件(.p12)
• service_token_file_location(存储握手JSON的可写路径，有效期为1小时)

代码示例:

function getGoogleClient($data = null) {
    global $service_token_file_location, $key_file_location, $service_account_name;
    $client = new Google_Client();
    $client->setApplicationName("Client_Library_Examples");

    $old_service_token = null;
    $service_token = @file_get_contents($service_token_file_location);
    $client->setAccessToken($service_token);
    $key = file_get_contents($key_file_location);
    $cred = new Google_Auth_AssertionCredentials(
            $service_account_name, array(
        'https://www.googleapis.com/auth/bigquery',
        'https://www.googleapis.com/auth/devstorage.full_control'
            ), $key
    );
    $client->setAssertionCredentials($cred);
    if ($client->getAuth()->isAccessTokenExpired()) {
        $client->getAuth()->refreshTokenWithAssertion($cred);
        $service_token = $client->getAccessToken();
    }
    return $client;
}

$client = getGoogleClient();
$bq = new Google_Service_Bigquery($client);

/**
 * @see https://developers.google.com/bigquery/docs/reference/v2/jobs#resource
 */
$job = new Google_Service_Bigquery_Job();
$config = new Google_Service_Bigquery_JobConfiguration();
$config->setDryRun(false);
$queryConfig = new Google_Service_Bigquery_JobConfigurationQuery();
$config->setQuery($queryConfig);

$job->setConfiguration($config);

$destinationTable = new Google_Service_Bigquery_TableReference();
$destinationTable->setDatasetId(DATASET_ID);
$destinationTable->setProjectId(PROJECT_ID);
$destinationTable->setTableId('table1');

$queryConfig->setDestinationTable($destinationTable);

$sql = "select * from publicdata:samples.github_timeline limit 10";
$queryConfig->setQuery($sql);

try {
//    print_r($job);
//    exit;
    $job = $bq->jobs->insert(PROJECT_ID, $job);

    $status = new Google_Service_Bigquery_JobStatus();
    $status = $job->getStatus();
//    print_r($status);
    if ($status->count() != 0) {
        $err_res = $status->getErrorResult();
        die($err_res->getMessage());
    }
} catch (Google_Service_Exception $e) {
    echo $e->getMessage();
    exit;
}
//print_r($job);
$jr = $job->getJobReference();
//var_dump($jr);
$jobId = $jr['jobId'];
if ($status)
    $state = $status['state'];

echo 'JOBID:' . $jobId . " ";
echo 'STATUS:' . $state;

您可以通过以下方式获取结果:

$res = $bq->jobs->getQueryResults(PROJECT_ID, $_GET['jobId'], array('timeoutMs' => 1000));

if (!$res->jobComplete) {
    echo "Job not yet complete";
    exit;
}
echo "<p>Total rows: " . $res->totalRows . "</p>\r\n";
//see the results made it as an object ok
//print_r($res);
$rows = $res->getRows();
$r = new Google_Service_Bigquery_TableRow();
$a = array();
foreach ($rows as $r) {
    $r = $r->getF();
    $temp = array();
    foreach ($r as $v) {
        $temp[] = $v->v;
    }
    $a[] = $temp;
}
print_r($a);

您可以在此处看到可用于其他 BigQuery 调用的类。当您阅读该文件时，请知道该文件是从其他来源生成的，因此对于 PHP 来说它看起来很奇怪，您需要学习阅读它以便能够使用其中的方法。

https://github.com/google/google-api-php-client/blob/master/src/Google/Service/Bigquery.php

喜欢:

• Google_Service_Bigquery_TableRow