Add Campaign Labels

Java

// 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
//
//     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.campaignmanagement;

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.v18.errors.GoogleAdsError;
import com.google.ads.googleads.v18.errors.GoogleAdsException;
import com.google.ads.googleads.v18.resources.CampaignLabel;
import com.google.ads.googleads.v18.services.CampaignLabelOperation;
import com.google.ads.googleads.v18.services.CampaignLabelServiceClient;
import com.google.ads.googleads.v18.services.MutateCampaignLabelResult;
import com.google.ads.googleads.v18.services.MutateCampaignLabelsResponse;
import com.google.ads.googleads.v18.utils.ResourceNames;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/** Adds a campaign label to a list of campaigns. */
public class AddCampaignLabels {

  private static class AddCampaignLabelsParams extends CodeSampleParams {

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

    @Parameter(names = ArgumentNames.CAMPAIGN_IDS, required = true)
    private List<Long> campaignIds = new ArrayList<>();

    @Parameter(names = ArgumentNames.LABEL_ID, required = true)
    private Long labelId;
  }

  public static void main(String[] args) throws IOException {
    AddCampaignLabelsParams params = new AddCampaignLabelsParams();
    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");
      params.campaignIds =
          Arrays.asList(
              Long.valueOf("INSERT_CAMPAIGN_ID_HERE"), Long.valueOf("INSERT_CAMPAIGN_ID_HERE"));
      params.labelId = Long.parseLong("INSERT_LABEL_ID_HERE");
    }

    GoogleAdsClient googleAdsClient = null;
    try {
      googleAdsClient = GoogleAdsClient.newBuilder().fromPropertiesFile().build();
    } catch (FileNotFoundException fnfe) {
      System.err.printf(
          "Failed to load GoogleAdsClient configuration from file. Exception: %s%n", fnfe);
      System.exit(1);
    } catch (IOException ioe) {
      System.err.printf("Failed to create GoogleAdsClient. Exception: %s%n", ioe);
      System.exit(1);
    }

    try {
      new AddCampaignLabels()
          .runExample(googleAdsClient, params.customerId, params.campaignIds, params.labelId);
    } 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);
      }
      System.exit(1);
    }
  }

  /**
   * Runs the example.
   *
   * @param googleAdsClient the Google Ads API client.
   * @param customerId the client customer ID.
   * @param campaignIds the IDs of the campaigns to which the label will be added.
   * @param labelId the ID of the label to attach to campaigns.
   * @throws GoogleAdsException if an API request failed with one or more service errors.
   */
  private void runExample(
      GoogleAdsClient googleAdsClient, long customerId, List<Long> campaignIds, Long labelId) {
    // Gets the resource name of the label to be added across all given campaigns.
    String labelResourceName = ResourceNames.label(customerId, labelId);

    List<CampaignLabelOperation> operations = new ArrayList<>(campaignIds.size());
    // Creates a campaign label operation for each campaign.
    for (Long campaignId : campaignIds) {
      // Gets the resource name of the given campaign.
      String campaignResourceName = ResourceNames.campaign(customerId, campaignId);
      // Creates the campaign label.
      CampaignLabel campaignLabel =
          CampaignLabel.newBuilder()
              .setCampaign(campaignResourceName)
              .setLabel(labelResourceName)
              .build();

      operations.add(CampaignLabelOperation.newBuilder().setCreate(campaignLabel).build());
    }

    try (CampaignLabelServiceClient campaignLabelServiceClient =
        googleAdsClient.getLatestVersion().createCampaignLabelServiceClient()) {
      MutateCampaignLabelsResponse response =
          campaignLabelServiceClient.mutateCampaignLabels(Long.toString(customerId), operations);
      System.out.printf("Added %d campaign labels:%n", response.getResultsCount());
      for (MutateCampaignLabelResult result : response.getResultsList()) {
        System.out.println(result.getResourceName());
      }
    }
  }
}
AddCampaignLabels.java
      

C#

// Copyright 2020 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 CommandLine;
using Google.Ads.Gax.Examples;
using Google.Ads.GoogleAds.Lib;
using Google.Ads.GoogleAds.V18.Errors;
using Google.Ads.GoogleAds.V18.Resources;
using Google.Ads.GoogleAds.V18.Services;
using System;
using System.Collections.Generic;
using System.Linq;

namespace Google.Ads.GoogleAds.Examples.V18
{
    /// <summary>
    /// This code example adds a campaign label to a list of campaigns.
    /// </summary>
    public class AddCampaignLabels : ExampleBase
    {
        /// <summary>
        /// Command line options for running the <see cref="AddCampaignLabels"/> example.
        /// </summary>
        public class Options : OptionsBase
        {
            /// <summary>
            /// The Google Ads customer ID for which the call is made.
            /// </summary>
            [Option("customerId", Required = true, HelpText =
                "The Google Ads customer ID for which the call is made.")]
            public long CustomerId { get; set; }

            /// <summary>
            /// IDs of the campaigns where the campaign labels will be added.
            /// </summary>
            [Option("campaignIds", Required = true, HelpText =
                "IDs of the campaigns where the campaign labels will be added.")]
            public IEnumerable<long> CampaignIds { get; set; }

            /// <summary>
            /// The ID of the label to attach to campaigns.
            /// </summary>
            [Option("labelId", Required = true, HelpText =
                "The ID of the label to attach to campaigns.")]
            public long LabelId { get; set; }
        }

        /// <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)
        {
            Options options = ExampleUtilities.ParseCommandLine<Options>(args);

            AddCampaignLabels codeExample = new AddCampaignLabels();
            Console.WriteLine(codeExample.Description);
            codeExample.Run(new GoogleAdsClient(), options.CustomerId,
                options.CampaignIds.ToArray(), options.LabelId);
        }

        /// <summary>
        /// Returns a description about the code example.
        /// </summary>
        public override string Description =>
            "This code example adds a campaign label to a list of campaigns.";

        /// <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>
        /// <param name="campaignIds">IDs of the campaigns where the campaign labels will be added.
        /// </param>
        /// <param name="labelId">The ID of the label to attach to campaigns.</param>
        public void Run(GoogleAdsClient client, long customerId, long[] campaignIds, long labelId)
        {
            // Get the CampaignLabelServiceClient.
            CampaignLabelServiceClient campaignLabelService =
                client.GetService(Services.V18.CampaignLabelService);

            // Gets the resource name of the label to be added across all given campaigns.
            string labelResourceName = ResourceNames.Label(customerId, labelId);

            List<CampaignLabelOperation> operations = new List<CampaignLabelOperation>();
            // Creates a campaign label operation for each campaign.
            foreach (long campaignId in campaignIds)
            {
                // Gets the resource name of the given campaign.
                string campaignResourceName = ResourceNames.Campaign(customerId, campaignId);
                // Creates the campaign label.
                CampaignLabel campaignLabel = new CampaignLabel()
                {
                    Campaign = campaignResourceName,
                    Label = labelResourceName
                };

                operations.Add(new CampaignLabelOperation()
                {
                    Create = campaignLabel
                });
            }

            // Send the operation in a mutate request.
            try
            {
                MutateCampaignLabelsResponse response =
                    campaignLabelService.MutateCampaignLabels(customerId.ToString(), operations);
                Console.WriteLine($"Added {response.Results} campaign labels:");

                foreach (MutateCampaignLabelResult result in response.Results)
                {
                    Console.WriteLine(result.ResourceName);
                }
            }
            catch (GoogleAdsException e)
            {
                Console.WriteLine("Failure:");
                Console.WriteLine($"Message: {e.Message}");
                Console.WriteLine($"Failure: {e.Failure}");
                Console.WriteLine($"Request ID: {e.RequestId}");
                throw;
            }
        }
    }
}
AddCampaignLabels.cs
      

PHP

<?php

/**
 * 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
 *
 *     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\CampaignManagement;

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\OAuth2TokenBuilder;
use Google\Ads\GoogleAds\Lib\V18\GoogleAdsClient;
use Google\Ads\GoogleAds\Lib\V18\GoogleAdsClientBuilder;
use Google\Ads\GoogleAds\Lib\V18\GoogleAdsException;
use Google\Ads\GoogleAds\Util\V18\ResourceNames;
use Google\Ads\GoogleAds\V18\Errors\GoogleAdsError;
use Google\Ads\GoogleAds\V18\Resources\CampaignLabel;
use Google\Ads\GoogleAds\V18\Services\CampaignLabelOperation;
use Google\Ads\GoogleAds\V18\Services\MutateCampaignLabelsRequest;
use Google\ApiCore\ApiException;

/** This example adds a campaign label to a list of campaigns. */
class AddCampaignLabels
{
    private const CUSTOMER_ID = 'INSERT_CUSTOMER_ID_HERE';
    private const CAMPAIGN_ID_1 = 'INSERT_CAMPAIGN_ID_1_HERE';
    private const CAMPAIGN_ID_2 = 'INSERT_CAMPAIGN_ID_2_HERE';
    private const LABEL_ID = 'INSERT_LABEL_ID_HERE';

    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::CAMPAIGN_IDS => GetOpt::MULTIPLE_ARGUMENT,
            ArgumentNames::LABEL_ID => GetOpt::REQUIRED_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::CAMPAIGN_IDS] ?:
                    [self::CAMPAIGN_ID_1, self::CAMPAIGN_ID_2],
                $options[ArgumentNames::LABEL_ID] ?: self::LABEL_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 array $campaignIds the IDs of the campaigns to which the label will be added
     * @param int $labelId the ID of the label to attach to campaigns
     */
    public static function runExample(
        GoogleAdsClient $googleAdsClient,
        int $customerId,
        array $campaignIds,
        int $labelId
    ) {
        // Gets the resource name of the label to be added across all given campaigns.
        $labelResourceName = ResourceNames::forLabel($customerId, $labelId);

        // Creates a campaign label operation for each campaign.
        $operations = [];
        foreach ($campaignIds as $campaignId) {
            // Creates the campaign label.
            $campaignLabel = new CampaignLabel([
                'campaign' => ResourceNames::forCampaign($customerId, $campaignId),
                'label' => $labelResourceName
            ]);
            $campaignLabelOperation = new CampaignLabelOperation();
            $campaignLabelOperation->setCreate($campaignLabel);
            $operations[] = $campaignLabelOperation;
        }

        // Issues a mutate request to add the labels to the campaigns.
        $campaignLabelServiceClient = $googleAdsClient->getCampaignLabelServiceClient();
        $response = $campaignLabelServiceClient->mutateCampaignLabels(
            MutateCampaignLabelsRequest::build($customerId, $operations)
        );

        printf("Added %d campaign labels:%s", $response->getResults()->count(), PHP_EOL);

        foreach ($response->getResults() as $addedCampaignLabel) {
            /** @var CampaignLabel $addedCampaignLabel */
            printf(
                "New campaign label added with resource name: '%s'.%s",
                $addedCampaignLabel->getResourceName(),
                PHP_EOL
            );
        }
    }
}

AddCampaignLabels::main();
AddCampaignLabels.php
      

Python

#!/usr/bin/env python
# Copyright 2020 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 code example adds a campaign label to a list of campaigns.

This example assumes that a label has already been prepared.
"""

import argparse
import sys

from google.ads.googleads.client import GoogleAdsClient
from google.ads.googleads.errors import GoogleAdsException


def main(client, customer_id, label_id, campaign_ids):
    """This code example adds a campaign label to a list of campaigns.

    Args:
        client: An initialized GoogleAdsClient instance.
        customer_id: A client customer ID str.
        label_id: The ID of the label to attach to campaigns.
        campaign_ids: A list of campaign IDs to which the label will be added.
    """

    # Get an instance of CampaignLabelService client.
    campaign_label_service = client.get_service("CampaignLabelService")
    campaign_service = client.get_service("CampaignService")
    label_service = client.get_service("LabelService")

    # Build the resource name of the label to be added across the campaigns.
    label_resource_name = label_service.label_path(customer_id, label_id)

    operations = []

    for campaign_id in campaign_ids:
        campaign_resource_name = campaign_service.campaign_path(
            customer_id, campaign_id
        )
        campaign_label_operation = client.get_type("CampaignLabelOperation")

        campaign_label = campaign_label_operation.create
        campaign_label.campaign = campaign_resource_name
        campaign_label.label = label_resource_name
        operations.append(campaign_label_operation)

    response = campaign_label_service.mutate_campaign_labels(
        customer_id=customer_id, operations=operations
    )
    print(f"Added {len(response.results)} campaign labels:")
    for result in response.results:
        print(result.resource_name)


if __name__ == "__main__":
    parser = argparse.ArgumentParser(
        description="This code example adds a campaign label to a list of "
        "campaigns."
    )
    # 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(
        "-l",
        "--label_id",
        type=str,
        required=True,
        help="The ID of the label to attach to campaigns.",
    )
    parser.add_argument(
        "-i",
        "--campaign_ids",
        nargs="+",
        type=str,
        required=True,
        help="The campaign IDs to receive the label.",
    )
    args = parser.parse_args()

    # GoogleAdsClient will read the google-ads.yaml configuration file in the
    # home directory if none is specified.
    googleads_client = GoogleAdsClient.load_from_storage(version="v18")
    try:
        main(
            googleads_client, args.customer_id, args.label_id, args.campaign_ids
        )
    except GoogleAdsException as ex:
        print(
            f'Request with ID "{ex.request_id}" failed with status '
            f'"{ex.error.code().name}" and includes the following errors:'
        )
        for error in ex.failure.errors:
            print(f'\tError with message "{error.message}".')
            if error.location:
                for field_path_element in error.location.field_path_elements:
                    print(f"\t\tOn field: {field_path_element.field_name}")
        sys.exit(1)
add_campaign_labels.py
      

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 code example adds a campaign label to a list of campaigns

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

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

  label_resource_name = client.path.label(customer_id, label_id)

  labels = campaign_ids.map { |campaign_id|
    client.resource.campaign_label do |label|
      campaign_resource_name = client.path.campaign(customer_id, campaign_id)
      label.campaign = campaign_resource_name
      label.label = label_resource_name
    end
  }

  ops = labels.map { |label|
    client.operation.create_resource.campaign_label(label)
  }

  response = client.service.campaign_label.mutate_campaign_labels(
    customer_id: customer_id,
    operations: ops,
  )
  response.results.each do |result|
    puts("Created campaign label with id: #{result.resource_name}")
  end
end

if __FILE__ == $0
  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.
  #
  # Running the example with -h will print the command line usage.
  options[:customer_id] = 'INSERT_CUSTOMER_ID_HERE'
  options[:label_id] = 'INSERT_LABEL_ID_HERE'
  options[:campaign_ids] = 'INSERT_CAMPAIGN_IDS_HERE'

  OptionParser.new do |opts|
    opts.banner = sprintf("Usage: #{File.basename(__FILE__)}.rb [options]")

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

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

    opts.on('-c', '--campaign-ids CAMPAIGN-IDS', String, 'Comma separated list of campaign ids') do |v|
      options[:campaign_ids] = v
    end

    opts.on('-L', '--label-id LABEL-ID', String, 'Label ID') do |v|
      options[:label_id] = v
    end

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

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

  begin
    add_campaign_label(
      options.fetch(:customer_id).tr("-", ""),
      options.fetch(:label_id),
      options.fetch(:campaign_ids).split(",").map(&:strip),
    )
  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
  end
end
add_campaign_labels.rb
      

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 adds a campaign label to a list of campaigns.

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::V18::Resources::CampaignLabel;
use
  Google::Ads::GoogleAds::V18::Services::CampaignLabelService::CampaignLabelOperation;
use Google::Ads::GoogleAds::V18::Utils::ResourceNames;

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

# 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 $campaign_id1 = "INSERT_CAMPAIGN_ID_1_HERE";
my $campaign_id2 = "INSERT_CAMPAIGN_ID_2_HERE";
my $campaign_ids = [];
my $label_id     = "INSERT_LABEL_ID_HERE";

sub add_campaign_labels {
  my ($api_client, $customer_id, $campaign_ids, $label_id) = @_;

  my $label_resource_name =
    Google::Ads::GoogleAds::V18::Utils::ResourceNames::label($customer_id,
    $label_id);

  my $campaign_label_operations = [];

  # Create a campaign label operation for each campaign.
  foreach my $campaign_id (@$campaign_ids) {
    # Create a campaign label.
    my $campaign_label =
      Google::Ads::GoogleAds::V18::Resources::CampaignLabel->new({
        campaign => Google::Ads::GoogleAds::V18::Utils::ResourceNames::campaign(
          $customer_id, $campaign_id
        ),
        label => $label_resource_name
      });

    # Create a campaign label operation.
    my $campaign_label_operation =
      Google::Ads::GoogleAds::V18::Services::CampaignLabelService::CampaignLabelOperation
      ->new({
        create => $campaign_label
      });

    push @$campaign_label_operations, $campaign_label_operation;
  }

  # Add the campaign labels to the campaigns.
  my $campaign_labels_response = $api_client->CampaignLabelService()->mutate({
    customerId => $customer_id,
    operations => $campaign_label_operations
  });

  my $campaign_label_results = $campaign_labels_response->{results};
  printf "Added %d campaign labels:\n", scalar @$campaign_label_results;

  foreach my $campaign_label_result (@$campaign_label_results) {
    printf "Created campaign label '%s'.\n",
      $campaign_label_result->{resourceName};
  }

  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,
  "campaign_ids=s" => \@$campaign_ids,
  "label_id=i"     => \$label_id
);
$campaign_ids = [$campaign_id1, $campaign_id2] unless @$campaign_ids;

# 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, $campaign_ids, $label_id);

# Call the example.
add_campaign_labels($api_client, $customer_id =~ s/-//gr,
  $campaign_ids, $label_id);

=pod

=head1 NAME

add_campaign_labels

=head1 DESCRIPTION

This example adds a campaign label to a list of campaigns.

=head1 SYNOPSIS

add_campaign_labels.pl [options]

    -help                       Show the help message.
    -customer_id                The Google Ads customer ID.
    -campaign_ids               The campaign IDs to which the label will be added.
    -label_id                   The label ID.

=cut
add_campaign_labels.pl