Paging Through Results

Google Ads Query Language supports paging by specifying page_size in your request. This will break up the result set of the query into multiple responses that each contains up to page_size objects. If page_size is not specified, it is automatically set to the maximum page size of 10,000 rows.

For example, with the following query:

SELECT
  ad_group.id,
  ad_group_criterion.type,
  ad_group_criterion.criterion_id,
  ad_group_criterion.keyword.text,
  ad_group_criterion.keyword.match_type
FROM ad_group_criterion
WHERE ad_group_criterion.type = KEYWORD

If your account contains 50,000 keywords and page_size is set to 1,000, the result set will contain 1,000 GoogleAdsRow objects in the first response, along with a next_page_token. To retrieve the next one thousand rows, simply send the request again with the same page size, but update the request's page_token to the response's next_page_token. The value of page_size in the subsequent requests can be different each time.

Our client libraries handle paging automatically. You only have to iterate through the rows of the response. When all the rows in the current page have been returned, the client library will fetch a new page of rows automatically on your behalf until the entire data set has been retrieved. If using REST instead of gRPC, you must explicitly make a request for each new page.

Google Ads API internally caches the entire data set, so subsequent requests are faster than the first request. Depending on your use case, you can set page_size to any value between 1 and 10,000. In general, for faster overall performance, you should use a larger page_size due to fewer round trips in your responses.

Your query must remain exactly the same in subsequent requests to take advantage of the cached data; the requests won't contribute towards your quota, particularly for basic access. If the query differs and it is sent along with the page token, it will result in an error. When manual paging is required such as during web page navigation, you can retrieve one page at a time with a page token:

Java

// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.ads.googleads.examples.basicoperations;

import com.beust.jcommander.Parameter;
import com.google.ads.googleads.examples.utils.ArgumentNames;
import com.google.ads.googleads.examples.utils.CodeSampleParams;
import com.google.ads.googleads.lib.GoogleAdsClient;
import com.google.ads.googleads.v4.common.KeywordInfo;
import com.google.ads.googleads.v4.errors.GoogleAdsError;
import com.google.ads.googleads.v4.errors.GoogleAdsException;
import com.google.ads.googleads.v4.resources.AdGroup;
import com.google.ads.googleads.v4.resources.AdGroupCriterion;
import com.google.ads.googleads.v4.services.GoogleAdsRow;
import com.google.ads.googleads.v4.services.GoogleAdsServiceClient;
import com.google.ads.googleads.v4.services.GoogleAdsServiceClient.SearchPagedResponse;
import com.google.ads.googleads.v4.services.SearchGoogleAdsRequest;
import java.io.FileNotFoundException;
import java.io.IOException;
import javax.annotation.Nullable;

/** Gets keywords from ad group criteria. */
public class GetKeywords {

  private static final int PAGE_SIZE = 1_000;

  private static class GetKeywordsParams extends CodeSampleParams {

    @Parameter(names = ArgumentNames.CUSTOMER_ID, required = true)
    private Long customerId;

    @Parameter(names = ArgumentNames.AD_GROUP_ID)
    private Long adGroupId;
  }

  public static void main(String[] args) throws IOException {
    GetKeywordsParams params = new GetKeywordsParams();
    if (!params.parseArguments(args)) {

      // Either pass the required parameters for this example on the command line, or insert them
      // into the code here. See the parameter class definition above for descriptions.
      params.customerId = Long.parseLong("INSERT_CUSTOMER_ID_HERE");

      // Optional: Specify an ad group ID to restrict search to only a given ad group.
      params.adGroupId = null;
    }

    GoogleAdsClient googleAdsClient;
    try {
      googleAdsClient = GoogleAdsClient.newBuilder().fromPropertiesFile().build();
    } catch (FileNotFoundException fnfe) {
      System.err.printf(
          "Failed to load GoogleAdsClient configuration from file. Exception: %s%n", fnfe);
      return;
    } catch (IOException ioe) {
      System.err.printf("Failed to create GoogleAdsClient. Exception: %s%n", ioe);
      return;
    }

    try {
      new GetKeywords().runExample(googleAdsClient, params.customerId, params.adGroupId);
    } catch (GoogleAdsException gae) {
      // GoogleAdsException is the base class for most exceptions thrown by an API request.
      // Instances of this exception have a message and a GoogleAdsFailure that contains a
      // collection of GoogleAdsErrors that indicate the underlying causes of the
      // GoogleAdsException.
      System.err.printf(
          "Request ID %s failed due to GoogleAdsException. Underlying errors:%n",
          gae.getRequestId());
      int i = 0;
      for (GoogleAdsError googleAdsError : gae.getGoogleAdsFailure().getErrorsList()) {
        System.err.printf("  Error %d: %s%n", i++, googleAdsError);
      }
    }
  }

  /**
   * Runs the example.
   *
   * @param googleAdsClient the Google Ads API client.
   * @param customerId the client customer ID.
   * @param adGroupId the ad group ID for which keywords will be retrieved. If {@code null}, returns
   *     from all ad groups.
   * @throws GoogleAdsException if an API request failed with one or more service errors.
   * @throws Exception if the example failed due to other errors.
   */
  private void runExample(
      GoogleAdsClient googleAdsClient, long customerId, @Nullable Long adGroupId) {
    try (GoogleAdsServiceClient googleAdsServiceClient =
        googleAdsClient.getLatestVersion().createGoogleAdsServiceClient()) {
      String searchQuery =
          "SELECT ad_group.id, "
              + "ad_group_criterion.type, "
              + "ad_group_criterion.criterion_id, "
              + "ad_group_criterion.keyword.text, "
              + "ad_group_criterion.keyword.match_type "
              + "FROM ad_group_criterion "
              + "WHERE ad_group_criterion.type = KEYWORD ";
      if (adGroupId != null) {
        searchQuery += String.format("AND ad_group.id = %d", adGroupId);
      }

      // Creates a request that will retrieve all keywords using pages of the specified page size.
      SearchGoogleAdsRequest request =
          SearchGoogleAdsRequest.newBuilder()
              .setCustomerId(Long.toString(customerId))
              .setPageSize(PAGE_SIZE)
              .setQuery(searchQuery)
              .build();
      // Issues the search request.
      SearchPagedResponse searchPagedResponse = googleAdsServiceClient.search(request);
      // Iterates over all rows in all pages and prints the requested field values for the keyword
      // in each row.
      for (GoogleAdsRow googleAdsRow : searchPagedResponse.iterateAll()) {
        AdGroup adGroup = googleAdsRow.getAdGroup();
        AdGroupCriterion adGroupCriterion = googleAdsRow.getAdGroupCriterion();
        KeywordInfo keywordInfo = adGroupCriterion.getKeyword();
        System.out.printf(
            "Keyword with text '%s', match type '%s', criteria type '%s', and ID %d "
                + "was found in ad group with ID %d.%n",
            keywordInfo.getText().getValue(),
            keywordInfo.getMatchType(),
            adGroupCriterion.getType(),
            adGroupCriterion.getCriterionId().getValue(),
            adGroup.getId().getValue());
      }
    }
  }
}

C#

// Copyright 2019 Google LLC.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using Google.Ads.GoogleAds.Lib;
using Google.Ads.GoogleAds.V4.Errors;
using Google.Ads.GoogleAds.V4.Services;
using Google.Api.Gax;

using System;

namespace Google.Ads.GoogleAds.Examples.V4
{
    /// <summary>
    /// This code example illustrates getting keywords.
    /// </summary>
    public class GetKeywords : ExampleBase
    {
        /// <summary>
        /// Main method, to run this code example as a standalone application.
        /// </summary>
        /// <param name="args">The command line arguments.</param>
        public static void Main(string[] args)
        {
            GetKeywords codeExample = new GetKeywords();
            Console.WriteLine(codeExample.Description);

            // The Google Ads customer ID for which the call is made.
            long customerId = long.Parse("INSERT_CUSTOMER_ID_HERE");

            codeExample.Run(new GoogleAdsClient(), customerId);
        }

        /// <summary>
        /// Returns a description about the code example.
        /// </summary>
        public override string Description
        {
            get
            {
                return "This code example illustrates getting keywords.";
            }
        }

        /// <summary>
        /// Runs the code example.
        /// </summary>
        /// <param name="client">The Google Ads client.</param>
        /// <param name="customerId">The Google Ads customer ID for which the call is made.</param>
        public void Run(GoogleAdsClient client, long customerId)
        {
            // Get the GoogleAdsService.
            GoogleAdsServiceClient googleAdsService = client.GetService(
                Services.V4.GoogleAdsService);
            try
            {
                PagedEnumerable<SearchGoogleAdsResponse, GoogleAdsRow> result =
                  googleAdsService.Search(customerId.ToString(),
                      $@"SELECT
                    ad_group.id,
                    ad_group.status,
                    ad_group_criterion.criterion_id,
                    ad_group_criterion.keyword.text,
                    ad_group_criterion.keyword.match_type
                FROM ad_group_criterion
                WHERE ad_group_criterion.type = 'KEYWORD'
                    AND ad_group.status = 'ENABLED'
                    AND ad_group_criterion.status IN ('ENABLED', 'PAUSED')
                LIMIT 50");
                foreach (GoogleAdsRow criterionRow in result)
                {
                    Console.WriteLine("Keyword with text '{0}', id = '{1}' and match type = " +
                        "'{2}' was retrieved for ad group '{3}'.",
                        criterionRow.AdGroupCriterion.Keyword.Text,
                        criterionRow.AdGroupCriterion.CriterionId,
                        criterionRow.AdGroupCriterion.Keyword.MatchType,
                        criterionRow.AdGroup.Id.ToString());
                }
            }
            catch (GoogleAdsException e)
            {
                Console.WriteLine("Failure:");
                Console.WriteLine($"Message: {e.Message}");
                Console.WriteLine($"Failure: {e.Failure}");
                Console.WriteLine($"Request ID: {e.RequestId}");
                throw;
            }
        }
    }
}

PHP

<?php

/**
 * Copyright 2018 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace Google\Ads\GoogleAds\Examples\BasicOperations;

require __DIR__ . '/../../vendor/autoload.php';

use GetOpt\GetOpt;
use Google\Ads\GoogleAds\Examples\Utils\ArgumentNames;
use Google\Ads\GoogleAds\Examples\Utils\ArgumentParser;
use Google\Ads\GoogleAds\Lib\V4\GoogleAdsClient;
use Google\Ads\GoogleAds\Lib\V4\GoogleAdsClientBuilder;
use Google\Ads\GoogleAds\Lib\V4\GoogleAdsException;
use Google\Ads\GoogleAds\Lib\OAuth2TokenBuilder;
use Google\Ads\GoogleAds\V4\Enums\CriterionTypeEnum\CriterionType;
use Google\Ads\GoogleAds\V4\Enums\KeywordMatchTypeEnum\KeywordMatchType;
use Google\Ads\GoogleAds\V4\Errors\GoogleAdsError;
use Google\Ads\GoogleAds\V4\Services\GoogleAdsRow;
use Google\ApiCore\ApiException;

/** This example gets keywords from ad group criteria. */
class GetKeywords
{
    private const CUSTOMER_ID = 'INSERT_CUSTOMER_ID_HERE';
    // Optional: Specify an ad group ID below to restrict search to only a given ad group.
    private const AD_GROUP_ID = null;

    private const PAGE_SIZE = 1000;

    public static function main()
    {
        // Either pass the required parameters for this example on the command line, or insert them
        // into the constants above.
        $options = (new ArgumentParser())->parseCommandArguments([
            ArgumentNames::CUSTOMER_ID => GetOpt::REQUIRED_ARGUMENT,
            ArgumentNames::AD_GROUP_ID => GetOpt::OPTIONAL_ARGUMENT
        ]);

        // Generate a refreshable OAuth2 credential for authentication.
        $oAuth2Credential = (new OAuth2TokenBuilder())->fromFile()->build();

        // Construct a Google Ads client configured from a properties file and the
        // OAuth2 credentials above.
        $googleAdsClient = (new GoogleAdsClientBuilder())->fromFile()
            ->withOAuth2Credential($oAuth2Credential)
            ->build();

        try {
            self::runExample(
                $googleAdsClient,
                $options[ArgumentNames::CUSTOMER_ID] ?: self::CUSTOMER_ID,
                $options[ArgumentNames::AD_GROUP_ID] ?: self::AD_GROUP_ID
            );
        } catch (GoogleAdsException $googleAdsException) {
            printf(
                "Request with ID '%s' has failed.%sGoogle Ads failure details:%s",
                $googleAdsException->getRequestId(),
                PHP_EOL,
                PHP_EOL
            );
            foreach ($googleAdsException->getGoogleAdsFailure()->getErrors() as $error) {
                /** @var GoogleAdsError $error */
                printf(
                    "\t%s: %s%s",
                    $error->getErrorCode()->getErrorCode(),
                    $error->getMessage(),
                    PHP_EOL
                );
            }
            exit(1);
        } catch (ApiException $apiException) {
            printf(
                "ApiException was thrown with message '%s'.%s",
                $apiException->getMessage(),
                PHP_EOL
            );
            exit(1);
        }
    }

    /**
     * Runs the example.
     *
     * @param GoogleAdsClient $googleAdsClient the Google Ads API client
     * @param int $customerId the customer ID
     * @param int|null $adGroupId the ad group ID for which keywords will be retrieved. If `null`,
     *     returns from all ad groups
     */
    public static function runExample(
        GoogleAdsClient $googleAdsClient,
        int $customerId,
        ?int $adGroupId
    ) {
        $googleAdsServiceClient = $googleAdsClient->getGoogleAdsServiceClient();
        // Creates a query that retrieves keywords.
        $query =
          'SELECT ad_group.id, '
              . 'ad_group_criterion.type, '
              . 'ad_group_criterion.criterion_id, '
              . 'ad_group_criterion.keyword.text, '
              . 'ad_group_criterion.keyword.match_type '
          . 'FROM ad_group_criterion '
          . 'WHERE ad_group_criterion.type = KEYWORD';
        if ($adGroupId !== null) {
            $query .= " AND ad_group.id = $adGroupId";
        }

        // Issues a search request by specifying page size.
        $response =
            $googleAdsServiceClient->search($customerId, $query, ['pageSize' => self::PAGE_SIZE]);

        // Iterates over all rows in all pages and prints the requested field values for
        // the keyword in each row.
        foreach ($response->iterateAllElements() as $googleAdsRow) {
            /** @var GoogleAdsRow $googleAdsRow */
            printf(
                "Keyword with text '%s', match type '%s', criterion type '%s', and ID %d "
                . "was found in ad group with ID %d.%s",
                $googleAdsRow->getAdGroupCriterion()->getKeyword()->getTextUnwrapped(),
                KeywordMatchType::name(
                    $googleAdsRow->getAdGroupCriterion()->getKeyword()->getMatchType()
                ),
                CriterionType::name($googleAdsRow->getAdGroupCriterion()->getType()),
                $googleAdsRow->getAdGroupCriterion()->getCriterionIdUnwrapped(),
                $googleAdsRow->getAdGroup()->getIdUnwrapped(),
                PHP_EOL
            );
        }
    }
}

GetKeywords::main();

Python

#!/usr/bin/env python
# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This example retrieves keywords for a customer."""


import argparse
import sys

import google.ads.google_ads.client


_DEFAULT_PAGE_SIZE = 1000


def main(client, customer_id, page_size, ad_group_id=None):
    ga_service = client.get_service('GoogleAdsService', version='v4')

    query = ('SELECT ad_group.id, ad_group_criterion.type, '
             'ad_group_criterion.criterion_id, '
             'ad_group_criterion.keyword.text, '
             'ad_group_criterion.keyword.match_type FROM ad_group_criterion '
             'WHERE ad_group_criterion.type = KEYWORD')

    if ad_group_id:
        query = '%s AND ad_group.id = %s' % (query, ad_group_id)

    results = ga_service.search(customer_id, query=query, page_size=page_size)

    try:
        for row in results:
            ad_group = row.ad_group
            ad_group_criterion = row.ad_group_criterion
            keyword = row.ad_group_criterion.keyword

            print('Keyword with text "%s", match type %s, criteria type %s, '
                  'and ID %s was found in ad group with ID %s.'
                  % (keyword.text.value, keyword.match_type,
                     ad_group_criterion.type,
                     ad_group_criterion.criterion_id.value, ad_group.id.value))
    except google.ads.google_ads.errors.GoogleAdsException as ex:
        print('Request with ID "%s" failed with status "%s" and includes the '
              'following errors:' % (ex.request_id, ex.error.code().name))
        for error in ex.failure.errors:
            print('\tError with message "%s".' % error.message)
            if error.location:
                for field_path_element in error.location.field_path_elements:
                    print('\t\tOn field: %s' % field_path_element.field_name)
        sys.exit(1)


if __name__ == '__main__':
    # GoogleAdsClient will read the google-ads.yaml configuration file in the
    # home directory if none is specified.
    google_ads_client = (google.ads.google_ads.client.GoogleAdsClient
                         .load_from_storage())

    parser = argparse.ArgumentParser(
        description=('Retrieves keywords for the specified customer, or '
                     'optionally for a specific ad group.'))
    # The following argument(s) should be provided to run the example.
    parser.add_argument('-c', '--customer_id', type=str,
                        required=True, help='The Google Ads customer ID.')
    parser.add_argument('-a', '--ad_group_id', type=str,
                        required=False, help='The ad group ID.')
    args = parser.parse_args()

    main(google_ads_client, args.customer_id, _DEFAULT_PAGE_SIZE,
         ad_group_id=args.ad_group_id)

Ruby

#!/usr/bin/env ruby
# Encoding: utf-8
#
# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This example retrieves keywords for a customer or for a specific Ad Group.

require 'optparse'
require 'google/ads/google_ads'

def get_keywords(customer_id, ad_group_id=nil)
  # GoogleAdsClient will read a config file from
  # ENV['HOME']/google_ads_config.rb when called without parameters
  client = Google::Ads::GoogleAds::GoogleAdsClient.new

  search_query = <<~QUERY
    SELECT ad_group.id,
           ad_group_criterion.type,
           ad_group_criterion.criterion_id,
           ad_group_criterion.keyword.text,
           ad_group_criterion.keyword.match_type
    FROM ad_group_criterion
    WHERE ad_group_criterion.type = KEYWORD
  QUERY

  if ad_group_id
    search_query << " AND ad_group.id = #{ad_group_id}"
  end

  response = client.service.google_ads.search(
    customer_id,
    search_query,
    page_size: PAGE_SIZE
  )

  response.each do |row|
      ad_group = row.ad_group
      ad_group_criterion = row.ad_group_criterion
      keyword_info = ad_group_criterion.keyword

      puts "Keyword with text '#{keyword_info.text}', match type #{keyword_info.match_type}, " \
          "criteria type #{ad_group_criterion.type}, and ID #{ad_group_criterion.criterion_id} " \
          "was found in ad group with ID #{ad_group.id}."
  end
end

if __FILE__ == $0
  PAGE_SIZE = 1000

  options = {}
  # The following parameter(s) should be provided to run the example. You can
  # either specify these by changing the INSERT_XXX_ID_HERE values below, or on
  # the command line.
  #
  # Parameters passed on the command line will override any parameters set in
  # code.
  #
  options[:customer_id] = 'INSERT_CUSTOMER_ID_HERE'
  options[:ad_group_id] = nil

  OptionParser.new do |opts|
    opts.banner = sprintf('Usage: %s [options]', File.basename(__FILE__))

    opts.separator ''
    opts.separator 'Options:'

    opts.on('-C', '--customer-id CUSTOMER-ID', String, 'Customer ID') do |v|
      options[:customer_id] = v
    end

    opts.on('-A', '--ad-group-id AD-GROUP-ID', String,
        '(Optional) Ad Group ID') do |v|
      options[:ad_group_id] = v
    end

    opts.separator ''
    opts.separator 'Help:'

    opts.on_tail('-h', '--help', 'Show this message') do
      puts opts
      exit
    end
  end.parse!

  begin
    get_keywords(options.fetch(:customer_id).tr("-", ""), options[:ad_group_id])
  rescue Google::Ads::GoogleAds::Errors::GoogleAdsError => e
    e.failure.errors.each do |error|
      STDERR.printf("Error with message: %s\n", error.message)
      if error.location
        error.location.field_path_elements.each do |field_path_element|
          STDERR.printf("\tOn field: %s\n", field_path_element.field_name)
        end
      end
      error.error_code.to_h.each do |k, v|
        next if v == :UNSPECIFIED
        STDERR.printf("\tType: %s\n\tCode: %s\n", k, v)
      end
    end
    raise
  rescue Google::Gax::RetryError => e
    STDERR.printf("Error: '%s'\n\tCause: '%s'\n\tCode: %d\n\tDetails: '%s'\n" \
        "\tRequest-Id: '%s'\n", e.message, e.cause.message, e.cause.code,
                  e.cause.details, e.cause.metadata['request-id'])
    raise
  end
end

Perl

#!/usr/bin/perl -w
#
# Copyright 2019, Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This example gets keywords for a customer or for a specific ad group. To add
# keywords, run add_keywords.pl.

use strict;
use warnings;
use utf8;

use FindBin qw($Bin);
use lib "$Bin/../../lib";
use Google::Ads::GoogleAds::Client;
use Google::Ads::GoogleAds::Utils::GoogleAdsHelper;
use Google::Ads::GoogleAds::Utils::SearchGoogleAdsIterator;
use
  Google::Ads::GoogleAds::V4::Services::GoogleAdsService::SearchGoogleAdsRequest;

use Getopt::Long qw(:config auto_help);
use Pod::Usage;
use Cwd qw(abs_path);

use constant PAGE_SIZE => 1000;

# The following parameter(s) should be provided to run the example. You can
# either specify these by changing the INSERT_XXX_ID_HERE values below, or on
# the command line.
#
# Parameters passed on the command line will override any parameters set in
# code.
#
# Running the example with -h will print the command line usage.
my $customer_id = "INSERT_CUSTOMER_ID_HERE";
my $ad_group_id = undef;

sub get_keywords {
  my ($api_client, $customer_id, $ad_group_id) = @_;

  # Create the search query.
  my $search_query =
    "SELECT ad_group.id, ad_group_criterion.type, " .
    "ad_group_criterion.criterion_id, " .
    "ad_group_criterion.keyword.text, " .
    "ad_group_criterion.keyword.match_type FROM ad_group_criterion " .
    "WHERE ad_group_criterion.type = KEYWORD";

  if ($ad_group_id) {
    $search_query .= " AND ad_group.id = $ad_group_id";
  }

  # Create a search Google Ads request that will retrieve all keywords using pages
  # of the specified page size.
  my $search_request =
    Google::Ads::GoogleAds::V4::Services::GoogleAdsService::SearchGoogleAdsRequest
    ->new({
      customerId => $customer_id,
      query      => $search_query,
      pageSize   => PAGE_SIZE
    });

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

  my $iterator = Google::Ads::GoogleAds::Utils::SearchGoogleAdsIterator->new({
    service => $google_ads_service,
    request => $search_request
  });

  # Iterate over all rows in all pages and print the requested field values for
  # the keyword in each row.
  while ($iterator->has_next) {
    my $google_ads_row = $iterator->next;

    my $ad_group           = $google_ads_row->{adGroup};
    my $ad_group_criterion = $google_ads_row->{adGroupCriterion};
    my $keyword_info       = $ad_group_criterion->{keyword};

    printf
      "Keyword with text '%s', match type '%s', criteria type '%s', and ID %d "
      . "was found in ad group with ID %d.\n",
      $keyword_info->{text},
      $keyword_info->{matchType},
      $ad_group_criterion->{type},
      $ad_group_criterion->{criterionId},
      $ad_group->{id},;
  }

  return 1;
}

# Don't run the example if the file is being included.
if (abs_path($0) ne abs_path(__FILE__)) {
  return 1;
}

# Get Google Ads Client, credentials will be read from ~/googleads.properties.
my $api_client = Google::Ads::GoogleAds::Client->new();

# By default examples are set to die on any server returned fault.
$api_client->set_die_on_faults(1);

# Parameters passed on the command line will override any parameters set in code.
GetOptions("customer_id=s" => \$customer_id, "ad_group_id=i" => \$ad_group_id);

# Print the help message if the parameters are not initialized in the code nor
# in the command line.
pod2usage(2) if not check_params($customer_id);

# Call the example.
get_keywords($api_client, $customer_id =~ s/-//gr, $ad_group_id);

=pod

=head1 NAME

get_keywords

=head1 DESCRIPTION

This example gets keywords for a customer or for a specific ad group. To add
keywords, run add_keywords.pl.

=head1 SYNOPSIS

get_keywords.pl [options]

    -help                       Show the help message.
    -customer_id                The Google Ads customer ID.
    -ad_group_id                [optional] The ad group ID.

=cut