Initial commit

app/api/v2/coin_market_cap/summary.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module API
+  module V2
+    module CoinMarketCap
+      class Summary < Grape::API
+        desc 'Overview of market data for all tickers and all market pairs on the exchange'
+        get '/summary' do
+          ::Rails.cache.fetch(:markets_summary_cmc, expires_in: 60) do
+            ::Market.enabled.ordered.map do |market|
+              format_summary(TickersService[market].ticker, market)
+            end
+          end
+        end
+      end
+    end
+  end
+end