feat(playground): add express node test (#39)

playground/express/index.js

@@ -0,0 +1,56 @@
+const express = require('express');
+const Sentry = require('@sentry/node');
+const Tracing = require('@sentry/tracing');
+const { ProfilingIntegration } = require('../../lib');
+
+const app = express();
+const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
+
+Sentry.init({
+  dsn: 'https://[email protected]/6625302',
+  tracesSampleRate: 1,
+  // @ts-expect-error profilesSampleRate is not yet in the official types
+  profilesSampleRate: 1,
+  debug: true,
+  integrations: [
+    // enable HTTP calls tracing
+    new Sentry.Integrations.Http({ tracing: true }),
+    // enable Express.js middleware tracing
+    new Tracing.Integrations.Express({
+      // to trace all requests to the default router
+      app
+      // alternatively, you can specify the routes you want to trace:
+      // router: someRouter,
+    }),
+    new ProfilingIntegration()
+  ]
+});
+
+// The request handler must be the first middleware on the app
+app.use(Sentry.Handlers.tracingHandler());
+app.use(Sentry.Handlers.requestHandler());
+
+// All controllers should live here
+app.get('/', function rootHandler(_req, res) {
+  res.end('Hello world!');
+});
+
+app.get('/slow', async function rootHandler(_req, res) {
+  await wait(1000);
+  res.end('Hello world!');
+});
+
+// The error handler must be before any other error middleware and after all controllers
+app.use(Sentry.Handlers.errorHandler());
+
+// Optional fallthrough error handler
+app.use(function onError(_err, _req, res, _next) {
+  // The error id is attached to `res.sentry` to be returned
+  // and optionally displayed to the user for support.
+  res.statusCode = 500;
+  res.end(res.sentry + '\n');
+});
+
+app.listen(3000, () => {
+  console.log('Server listening on port 3000');
+});