class FriendlyShipping::Services::Usps::ParseXMLResponse

Constants

ERROR_TAG

Public Class Methods

call(request:, response:, expected_root_tag:) click to toggle source
# File lib/friendly_shipping/services/usps/parse_xml_response.rb, line 11
def call(request:, response:, expected_root_tag:)
  xml = Nokogiri.XML(response.body, &:strict)

  if xml.root.nil? || ![expected_root_tag, 'Error'].include?(xml.root.name)
    wrap_failure('Invalid document', request, response)
  elsif request_successful?(xml)
    Success(xml)
  else
    wrap_failure(error_message(xml), request, response)
  end
rescue Nokogiri::XML::SyntaxError => e
  wrap_failure(e, request, response)
end

Private Class Methods

error_message(xml) click to toggle source
# File lib/friendly_shipping/services/usps/parse_xml_response.rb, line 31
def error_message(xml)
  number = xml.xpath('//Error/Number')&.text
  desc = xml.xpath('//Error/Description')&.text
  [number, desc].select(&:present?).join(': ').presence&.strip || 'USPS could not process the request.'
end
request_successful?(xml) click to toggle source
# File lib/friendly_shipping/services/usps/parse_xml_response.rb, line 27
def request_successful?(xml)
  xml.xpath('//Error/Number')&.text.blank?
end
wrap_failure(failure, request, response) click to toggle source
# File lib/friendly_shipping/services/usps/parse_xml_response.rb, line 37
def wrap_failure(failure, request, response)
  Failure(
    FriendlyShipping::ApiFailure.new(
      failure,
      original_request: request,
      original_response: response
    )
  )
end