how to use Zendesk API Gem

gistfile1.txt

require 'zendesk_api'

# retrieve login details from yml file.
z = get_login_details(:zendesk)
client = ZendeskAPI::Client.new do |config|
  config.url = "https://#{z.first}.zendesk.com/api/v2"
  config.username = z[1]
  config.password = z.last

  require 'logger'
  config.logger = Logger.new(STDOUT)
end

fields = {
      "21127457" => 12345,
      "21037343" => "loading_problem",
      "21362847" => "diamond_dash",
}
client.tickets.create(:subject      => "Test Ticket using API",
                      :description  => "This is a test",
                      :submitter_id => client.current_user.id,
                      :priority     => "urgent",
                      :fields       => fields,
                      :requester    => '[email protected]')