add_keywords.rb

#!/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.
#
# Example demonstrating how to add a keyword to an ad group.

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

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

  # Create a keyword
  criterion = client.resource.ad_group_criterion do |agc|
    agc.ad_group = client.path.ad_group(customer_id, ad_group_id)
    agc.status = :ENABLED
    agc.keyword = client.resource.keyword_info do |k|
      k.text = keyword
      k.match_type = :EXACT
    end
  end

  # Optional field
  # All fields can be referenced from the protos directly.
  # The protos are located in lib/google/ads/google_ads/v1 folders
  # criterion.negative = Google::Protobuf::BoolValue.new(value: true)

  # Optional repeated field
  # criterion.final_urls << "https://www.example.com"

  # Add keyword
  operation = client.operation.create_resource.ad_group_criterion(criterion)

  response = client.service.ad_group_criterion.mutate_ad_group_criteria(
    customer_id: customer_id,
    operations: [operation],
  )

  puts "Created keyword #{response.results.first.resource_name}"
end

if __FILE__ == $PROGRAM_NAME
  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[:ad_group_id] = 'INSERT_AD_GROUP_ID_HERE'
  options[:keyword] = 'mars cruise'

  OptionParser.new do |opts|
    opts.banner = sprintf('Usage: ruby %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, 'Ad Group ID') do |v|
      options[:ad_group_id] = v
    end

    opts.on('-k', '--keyword-text KEYWORD-TEXT', String, '(Optional) Keyword') do |v|
      options[:keyword] = v
    end

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

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

  begin
    add_keywords(options.fetch(:customer_id).tr("-", ""), options[:ad_group_id], options[:keyword])
  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