Initial commit

app/api/v2/public/trading_fees.rb

@@ -0,0 +1,39 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+module API
+  module V2
+    module Public
+      class TradingFees < Grape::API
+        helpers ::API::V2::Admin::Helpers
+
+        desc 'Returns trading_fees table as paginated collection',
+          is_array: true,
+          success: API::V2::Entities::TradingFee
+        params do
+          optional :group,
+                   type: String,
+                   desc: -> { API::V2::Entities::TradingFee.documentation[:group][:desc] },
+                   coerce_with: ->(c) { c.strip.downcase }
+          optional :market_id,
+                   type: String,
+                   desc: -> { API::V2::Entities::TradingFee.documentation[:market_id][:desc] },
+                   values: { value: -> { ::Market.ids.append(::TradingFee::ANY) },
+                             message: 'public.trading_fee.market_doesnt_exist' }
+          use :pagination
+          use :ordering
+        end
+        get '/trading_fees' do
+          ransack_params = API::V2::Admin::Helpers::RansackBuilder.new(params)
+                             .eq(:group, :market_id)
+                             .build
+
+          search = TradingFee.ransack(ransack_params)
+          search.sorts = "#{params[:order_by]} #{params[:ordering]}"
+
+          present paginate(Rails.cache.fetch("trading_fees_#{params}", expires_in: 600) { search.result.load.to_a }), with: API::V2::Entities::TradingFee
+        end
+      end
+    end
+  end
+end