Initial commit

app/api/v2/public/currencies.rb

@@ -0,0 +1,60 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+module API
+  module V2
+    module Public
+      class Currencies < Grape::API
+
+        helpers ::API::V2::ParamHelpers
+
+        desc 'Get a currency' do
+          success Entities::Currency
+        end
+        params do
+          requires :id,
+                   type: String,
+                   values: { value: -> { Currency.visible.codes(bothcase: true) }, message: 'public.currency.doesnt_exist'},
+                   desc: -> { API::V2::Entities::Currency.documentation[:id][:desc] }
+        end
+        get '/currencies/:id', requirements: { id: /[\w\.\-]+/ } do
+          present Currency.find(params[:id]), with: API::V2::Entities::Currency
+        end
+
+        desc 'Get list of currencies',
+          is_array: true,
+          success: Entities::Currency
+        params do
+          use :pagination
+          optional :type,
+                   type: String,
+                   values: { value: %w[fiat coin], message: 'public.currency.invalid_type' },
+                   desc: -> { API::V2::Entities::Currency.documentation[:type][:desc] }
+          optional :search, type: JSON, default: {} do
+            optional :code,
+                     type: String,
+                     desc: 'Search by currency code using SQL LIKE'
+            optional :name,
+                     type: String,
+                     desc: 'Search by currency name using SQL LIKE'
+          end
+        end
+        get '/currencies' do
+          search_attrs = { m: 'or',
+                           code_cont: params.dig(:search, :code),
+                           name_cont: params.dig(:search, :name) }
+
+
+          present paginate(Rails.cache.fetch("currencies_#{params}", expires_in: 600) do
+            currencies = Currency.visible.ordered
+            currencies = currencies.where(type: params[:type]).includes(:blockchain) if params[:type] == 'coin'
+            currencies = currencies.where(type: params[:type]) if params[:type] == 'fiat'
+
+            search = currencies.ransack(search_attrs)
+            search.result.load.to_a
+          end), with: API::V2::Entities::Currency
+        end
+      end
+    end
+  end
+end