# frozen_string_literal: true require 'rails-reverse-proxy' module Quilt module ReactRenderable include ReverseProxy::Controller def render_react raise DoNotIntegrationTestError if Rails.env.test? # Allow concurrent loading to prevent this thread from blocking class # loading in controllers called by the Node server. ActiveSupport::Dependencies.interlock.permit_concurrent_loads do call_proxy end end private def call_proxy if defined? ShopifySecurityBase ShopifySecurityBase::HTTPHostRestriction.whitelist([Quilt.configuration.react_server_host]) do proxy end else proxy end end def proxy url = "#{Quilt.configuration.react_server_protocol}://#{Quilt.configuration.react_server_host}" Quilt::Logger.log("[ReactRenderable] proxying to React server at #{url}") begin reverse_proxy(url, headers: { 'X-CSRF-Token': form_authenticity_token }) do |callbacks| callbacks.on_response do |status_code, _response| Quilt::Logger.log("[ReactRenderable] #{url} returned #{status_code}") end end rescue Errno::ECONNREFUSED raise ReactServerNoResponseError, url end end class ReactServerNoResponseError < StandardError def initialize(url) # rubocop:disable LineLength super "Errno::ECONNREFUSED: Waiting for React server to boot up. If this error presists verify that @shopify/react-server is configured on #{url}" # rubocop:enable LineLength end end class DoNotIntegrationTestError < StandardError def initialize # rubocop:disable LineLength super "Do not try to use Rails integration tests on your quilt_rails app. Instead use Jest and @shopify/react-testing to test your React application directly." # rubocop:enable LineLength end end end end