module PaymentComponent
  def fetch_payment_component(amount, card_brands, constituent = nil, options = {})
    card_brands ||= %w(amex, mc, discover, visa)
    parameters =
      {
        'Amount': amount,
        'ConstituentId': constituent,
        'CardBrandsToInclude': card_brands,
      }
    options.merge!(basic_auth: @auth, headers: @headers)
    options.merge!(:body => parameters.to_json, :headers => { 'Content-Type' => 'application/json' })
    self.class.post(base_api_endpoint('PaymentGateway/PaymentComponent'), options)
  end
end