module EisBilling class GetReferenceNumber < EisBilling::Base def self.send_request send_request end private def self.obj_data { initiator: INITIATOR } end def self.send_request http = EisBilling::Base.base_request(url: reference_number_generator_url) http.post(reference_number_generator_url, obj_data.to_json, HEADERS) end def self.reference_number_generator_url "#{BASE_URL}/api/v1/invoice_generator/reference_number_generator" end end end