Initial commit

app/api/v2/coin_market_cap/assets.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+module API
+  module V2
+    module CoinMarketCap
+      class Assets < Grape::API
+        desc 'Details on crypto currencies available on the exchange'
+        get '/assets' do
+          ::Rails.cache.fetch(:currencies_cmc, expires_in: 600) do
+            format_currencies(Currency.visible.coins.ordered.map)
+          end
+        end
+      end
+    end
+  end
+end