Initial commit

lib/tasks/fetch.rake

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+namespace :fetch do
+  desc 'Fetch currency price'
+  task :price, %i[quote external_currencies_service] => [:environment] do |_, args|
+    # TODO
+    # Add ability to take price from platform market
+    Currency.find_in_batches(batch_size: 50) do |group|
+      group.each do |record|
+        url = args.external_currencies_service || ENV['EXTERNAL_CURRENCIES_SERVICE']
+        raise 'There is no external currencies service configured' unless url.present?
+
+        # API call to external currencies service to get current currency price
+        response = Faraday.get(url, { code: record.code, quote: args.quote })
+        response_body = JSON.parse(response.body)
+
+        next unless response_body['current_price'].present?
+
+        ::Rails.logger.info { "Updating currency #{record.code} with price #{response_body["current_price"]}" }
+        record.update!(price: response_body['current_price'])
+      rescue Faraday::Error, StandardError  => e
+        ::Rails.logger.error e.inspect
+      end
+    end
+  end
+end