所有 Google Ads API 服務都有預設設定，包括傳輸所用的逾時。特定 Google Ads API 版本的所有服務都有專屬的 JSON 檔案，且這些檔案採用在服務和方法層級定義的預設設定。例如，您可以在這裡找到與最新版 Google Ads API 相關的檔案。
預設設定適用於大部分用途，但有時可能需要覆寫設定。PHP 的用戶端程式庫支援覆寫伺服器串流與一元測試的逾時設定。
您可以將逾時時間設定為 2 小時以上，但 API 可能還是會在長時間執行的要求逾時後傳回 DEADLINE_EXCEEDED 錯誤。
覆寫伺服器串流呼叫的逾時設定
唯一使用這類呼叫的 Google Ads API 服務方法為 GoogleAdsService.SearchStream。如要覆寫預設的逾時時間，您必須在呼叫方法時加入額外參數：
private static function makeServerStreamingCall(
GoogleAdsClient $googleAdsClient,
int $customerId
) {
$googleAdsServiceClient = $googleAdsClient->getGoogleAdsServiceClient();
// Creates a query that retrieves all campaign IDs.
$query = 'SELECT campaign.id FROM campaign';
$output = '';
try {
// Issues a search stream request by setting a custom client timeout.
/** @var GoogleAdsServerStreamDecorator $stream */
$stream = $googleAdsServiceClient->searchStream(
SearchGoogleAdsStreamRequest::build($customerId, $query),
[
// Any server streaming call has a default timeout setting. For this
// particular call, the default setting can be found in the following file:
// https://github.com/googleads/google-ads-php/blob/master/src/Google/Ads/GoogleAds/V16/Services/resources/google_ads_service_client_config.json.
//
// When making a server streaming call, an optional argument is provided and can
// be used to override the default timeout setting with a given value.
'timeoutMillis' => self::CLIENT_TIMEOUT_MILLIS
]
);
// Iterates over all rows in all messages and collects the campaign IDs.
foreach ($stream->iterateAllElements() as $googleAdsRow) {
/** @var GoogleAdsRow $googleAdsRow */
$output .= ' ' . $googleAdsRow->getCampaign()->getId();
}
print 'The server streaming call completed before the timeout.' . PHP_EOL;
} catch (ApiException $exception) {
if ($exception->getStatus() === ApiStatus::DEADLINE_EXCEEDED) {
print 'The server streaming call did not complete before the timeout.' . PHP_EOL;
} else {
// Bubbles up if the exception is not about timeout.
throw $exception;
}
} finally {
print 'All campaign IDs retrieved:' . ($output ?: ' None') . PHP_EOL;
}
}
覆寫一元呼叫的逾時設定
大部分的 Google Ads API 服務方法都使用一元呼叫，一般範例為 GoogleAdsService.Search 和 GoogleAdsService.Mutate。如要覆寫預設的逾時時間，您必須在呼叫方法時加入額外參數：
private static function makeUnaryCall(GoogleAdsClient $googleAdsClient, int $customerId)
{
$googleAdsServiceClient = $googleAdsClient->getGoogleAdsServiceClient();
// Creates a query that retrieves all campaign IDs.
$query = 'SELECT campaign.id FROM campaign';
$output = '';
try {
// Issues a search request by setting a custom client timeout.
$response = $googleAdsServiceClient->search(
SearchGoogleAdsRequest::build($customerId, $query),
[
// Any unary call is retryable and has default retry settings.
// Complete information about these settings can be found here:
// https://googleapis.github.io/gax-php/master/Google/ApiCore/RetrySettings.html.
// For this particular call, the default retry settings can be found in the
// following file:
// https://github.com/googleads/google-ads-php/blob/master/src/Google/Ads/GoogleAds/V16/Services/resources/google_ads_service_client_config.json.
//
// When making an unary call, an optional argument is provided and can be
// used to override the default retry settings with given values.
'retrySettings' => [
// Sets the maximum accumulative timeout of the call, it includes all tries.
'totalTimeoutMillis' => self::CLIENT_TIMEOUT_MILLIS,
// Sets the timeout that is used for the first try to one tenth of the
// maximum accumulative timeout of the call.
// Note: This overrides the default value and can lead to
// RequestError.RPC_DEADLINE_TOO_SHORT errors when too small. We recommend
// to do it only if necessary.
'initialRpcTimeoutMillis' => self::CLIENT_TIMEOUT_MILLIS / 10,
// Sets the maximum timeout that can be used for any given try to one fifth
// of the maximum accumulative timeout of the call (two times greater than
// the timeout that is used for the first try).
'maxRpcTimeoutMillis' => self::CLIENT_TIMEOUT_MILLIS / 5
]
]
);
// Iterates over all rows in all messages and collects the campaign IDs.
foreach ($response->iterateAllElements() as $googleAdsRow) {
/** @var GoogleAdsRow $googleAdsRow */
$output .= ' ' . $googleAdsRow->getCampaign()->getId();
}
print 'The unary call completed before the timeout.' . PHP_EOL;
} catch (ApiException $exception) {
if ($exception->getStatus() === ApiStatus::DEADLINE_EXCEEDED) {
print 'The unary call did not complete before the timeout.' . PHP_EOL;
} else {
// Bubbles up if the exception is not about timeout.
throw $exception;
}
} finally {
print 'All campaign IDs retrieved:' . ($output ?: ' None') . PHP_EOL;
}
}