Add example: GetUsageSummary with additionalProperties traversal

examples/v1/usage-metering/GetUsageSummary.rb

@@ -1,5 +1,43 @@
 # Get usage across your account returns "OK" response
 
 require "datadog_api_client"
-api_instance = DatadogAPIClient::V1::UsageMeteringAPI.new
-p api_instance.get_usage_summary("2021-11-11T11:11:11.111+00:00")
+
+# Step 1: fetch every field name at each response level.
+fields_api = DatadogAPIClient::V2::UsageMeteringAPI.new
+fields_resp = fields_api.get_usage_summary_available_fields
+attrs = fields_resp.data.attributes
+response_fields  = attrs.response_fields  || []
+date_fields      = attrs.date_fields      || []
+date_org_fields  = attrs.date_org_fields  || []
+
+# Step 2: call get_usage_summary with org details included.
+usage_api = DatadogAPIClient::V1::UsageMeteringAPI.new
+resp = usage_api.get_usage_summary(
+  "2021-11-11T11:11:11.111+00:00",
+  include_org_details: true
+)
+
+# Layer 1 — top-level additionalProperties on the response object.
+response_fields.each do |field|
+  key = field.to_sym
+  value = resp.additional_properties[key]
+  puts "response.#{field}: #{value}" unless value.nil?
+end
+
+# Layer 2 — per-date additionalProperties.
+(resp.usage || []).each do |date_entry|
+  date_fields.each do |field|
+    key = field.to_sym
+    value = date_entry.additional_properties[key]
+    puts "date(#{date_entry.date}).#{field}: #{value}" unless value.nil?
+  end
+
+  # Layer 3 — per-org additionalProperties inside each date.
+  (date_entry.orgs || []).each do |org|
+    date_org_fields.each do |field|
+      key = field.to_sym
+      value = org.additional_properties[key]
+      puts "date(#{date_entry.date}).org(#{org.name}).#{field}: #{value}" unless value.nil?
+    end
+  end
+end

examples/v2/usage-metering/GetUsageSummaryAvailableFields.rb

@@ -1,5 +1,16 @@
-# Get available fields for usage summary returns "OK." response
+# Get available fields for usage summary returns "OK" response
 
 require "datadog_api_client"
+
 api_instance = DatadogAPIClient::V2::UsageMeteringAPI.new
-p api_instance.get_usage_summary_available_fields()
+resp = api_instance.get_usage_summary_available_fields
+attrs = resp.data.attributes
+
+puts "response_fields (#{attrs.response_fields.length}):"
+attrs.response_fields.each { |f| puts "  #{f}" }
+
+puts "date_fields (#{attrs.date_fields.length}):"
+attrs.date_fields.each { |f| puts "  #{f}" }
+
+puts "date_org_fields (#{attrs.date_org_fields.length}):"
+attrs.date_org_fields.each { |f| puts "  #{f}" }