j.rb

  def call(credentials)
    header_info = get_oauth_token(credentials)
    soap_package = {
        soap_header: {
          "Authorization" => header_info[:token],
          "timestamp" => header_info[:timestamp],
          "signature" => header_info[:signature],
          "SOAPAction" => "",
          "content-type" => "application/xml"
          },
          message: {}
      }
    @client = Savon.client(wsdl: File.read('my.wsdl'),
                           endpoint: '',
                          namespaces: {"ns0" => "", "ns1" => "" },
                           convert_request_keys_to: :camelcase,
                           headers: { "Authorization" => header_info[:token],
                                      "timestamp" => header_info[:timestamp],
                                      "signature" => header_info[:signature],
                                      "csn" => "0000000000",
                                      "SOAPAction" => "",
                                      "content-type" => "application/xml",
                                     })
   raw_response = @client.call(:match_account_contact, soap_package)
  end