基本用法

本指南介绍了如何使用 Google Ads API 的 Perl 客户端库的基础知识。

初始化客户端

如需开始使用该库，请创建 Google::Ads::GoogleAds::Client 的实例。客户端可以通过多种方式进行配置，详情请参阅配置指南。一种常见的方法是使用 googleads.properties 文件：

use Google::Ads::GoogleAds::Client;

my $api_client = Google::Ads::GoogleAds::Client->new();

创建服务

初始化客户端后，您可以创建各种 API 服务的实例。例如，如需与广告系列互动，您可以创建 CampaignService 实例：

my $campaign_service = $api_client->CampaignService();

进行 API 调用

以下示例展示了如何通过 API 调用获取广告系列。此代码段演示了如何初始化客户端、创建服务和调用方法。

use strict;
use warnings;
use Google::Ads::GoogleAds::Client;
use Google::Ads::GoogleAds::V22::Services::GoogleAdsService::SearchGoogleAdsRequest;

# Initialize the Google Ads client. See the [Configuration guide](configuration) for more options.
my $api_client = Google::Ads::GoogleAds::Client->new();

# Get the GoogleAdsService.
my $google_ads_service = $api_client->GoogleAdsService();

# Specify the customer ID and query.
my $customer_id = "INSERT_CUSTOMER_ID_HERE";
my $query = "SELECT campaign.name, campaign.status FROM campaign";

# Create a search request.
my $search_request = Google::Ads::GoogleAds::V22::Services::GoogleAdsService::SearchGoogleAdsRequest
    ->new({
    customerId => $customer_id,
    query      => $query
});

# Execute the search request.
my $search_response = $google_ads_service->search($search_request);

# Iterate over the results and print campaign names.
foreach my $google_ads_row (@{$search_response->{results}}) {
    printf "Campaign with resource name '%s' and name '%s'.\n",
        $google_ads_row->{campaign}->{resourceName},
        $google_ads_row->{campaign}->{name};
}

处理错误

API 调用可能会导致异常。您应将 API 调用封装在 eval 块中，以捕获和处理 Google::Ads::GoogleAds::GoogleAdsException。

use strict;
use warnings;
use Google::Ads::GoogleAds::Client;
use Google::Ads::GoogleAds::GoogleAdsException;
use Google::Ads::GoogleAds::V22::Services::GoogleAdsService::SearchGoogleAdsRequest;

my $api_client = Google::Ads::GoogleAds::Client->new();
my $google_ads_service = $api_client->GoogleAdsService();
my $customer_id = "INSERT_CUSTOMER_ID_HERE";
my $query = "SELECT campaign.name, campaign.status FROM campaign";
my $search_request = Google::Ads::GoogleAds::V22::Services::GoogleAdsService::SearchGoogleAdsRequest->new({
    customerId => $customer_id,
    query      => $query
});

eval {
    my $search_response = $google_ads_service->search($search_request);
    # Process successful response.
    foreach my $google_ads_row (@{$search_response->{results}}) {
        printf "Campaign name: %s\n", $google_ads_row->{campaign}->{name};
    }
};
if ($@) {
    if (blessed($@) && $@->isa('Google::Ads::GoogleAds::GoogleAdsException')) {
        my $exception = $@;
        printf "A Google Ads exception occurred:\n";
        printf " Request ID: %s\n", $exception->get_request_id();
        foreach my $error (@{$exception->get_errors()}) {
            printf " Error code: %s\n", $error->{errorCode};
            printf " Message: %s\n", $error->{message};
        }
    } else {
        # Print other types of exceptions.
        print "An error occurred: $@\n";
    }
}

浏览其他示例

您可以在示例中找到多个有用的代码示例。 大多数示例都需要参数。您可以将参数作为实参传递（推荐），也可以修改源代码中的 INSERT_XXXXX_HERE 值。如需查看示例的用法语句，请传递 -help 作为命令行实参。

perl examples/basic_operations/get_campaigns.pl -help