node-renderer.js

const path = require('path');
const Honeybadger = require('@honeybadger-io/js');
const Sentry = require('@sentry/node');

const { env } = process;

// Use this for package installation test:
const { reactOnRailsProNodeRenderer } = require('react-on-rails-pro-node-renderer');

Honeybadger.configure({
  // This is a test account for React on Rails Pro. Substitute your own.
  apiKey: 'a602365c',
  environment: process.env.NODE_ENV ?? 'development',
});
require('react-on-rails-pro-node-renderer/integrations/honeybadger').init();

// This is a test account for React on Rails Pro.
// Substitute your own DSN.
// https://sentry.io/organizations/react-on-rails-pro/issues/?project=5591817
// Only project contributors have access to see the test errors.
Sentry.init({
  dsn: 'https://35ae284fec944acd89915dee2b9f3bc8@o504646.ingest.sentry.io/5591817',
  // Remove for Sentry SDK v8
  integrations: Sentry.autoDiscoverNodePerformanceMonitoringIntegrations(),
  // Sentry recommends adjusting this value in production, or using tracesSampler for finer control
  tracesSampleRate: 1.0,
});
require('react-on-rails-pro-node-renderer/integrations/sentry').init({ tracing: true });

const config = {
  // This is the default but avoids searching for the Rails root
  serverBundleCachePath: path.resolve(__dirname, '../.node-renderer-bundles'),
  port: env.RENDERER_PORT || 3800, // Listen at RENDERER_PORT env value or default port 3800
  logLevel: env.RENDERER_LOG_LEVEL || 'info',

  // See value in /config/initializers/react_on_rails_pro.rb. Should use env value in real app.
  password: 'myPassword1',

  // workersCount defaults to the number of CPUs minus 1

  // Next 2 params, allWorkersRestartInterval and delayBetweenIndividualWorkerRestarts must both
  // be set if you wish to have automatic worker restarting, say to clear memory leaks.

  // time in minutes between restarting all workers
  allWorkersRestartInterval: (env.CI ? 2 : env.RENDERER_ALL_WORKERS_RESTART_INTERVAL) || 10,

  // time in minutes between each worker restarting when restarting all workers
  delayBetweenIndividualWorkerRestarts: env.CI ? 0.01 : 1,

  // If set to true, `supportModules` enables the server-bundle code to call a default set of NodeJS modules
  // that get added to the VM context: { Buffer, process, setTimeout, setInterval, clearTimeout, clearInterval }.
  // This option is required to equal `true` if you want to use loadable components.
  // Setting this value to false causes the NodeRenderer to behave like ExecJS
  supportModules: true,

  // additionalContext enables you to specify additional NodeJS modules to add to the VM context in
  // addition to our supportModules defaults.
  additionalContext: { URL, AbortController },

  // Required to use setTimeout, setInterval, & clearTimeout during server rendering
  stubTimers: false,

  // If set to true, replayServerAsyncOperationLogs will replay console logs from async server operations.
  // If set to false, replayServerAsyncOperationLogs will replay console logs from sync server operations only.
  replayServerAsyncOperationLogs: true,
};

// Renderer detects a total number of CPUs on virtual hostings like Heroky or CircleCI instead
// of CPUs number allocated for current container. This results in spawning many workers while
// only 1-2 of them really needed.
if (env.CI) {
  config.workersCount = 2;
}

reactOnRailsProNodeRenderer(config);