Automatic Instrumentation

const Sentry = require("@sentry/node");
const express = require("express");
const app = express();

Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
  integrations: [
    // enable Express.js middleware tracing
    new Sentry.Integrations.Express({
      // to trace all requests to the default router
      app,
      // alternatively, you can specify the routes you want to trace:
      // router: someRouter,
    }),
    // Automatically instrument Node.js libraries and frameworks
    ...Sentry.autoDiscoverNodePerformanceMonitoringIntegrations(),
  ],

  // We recommend adjusting this value in production, or using tracesSampler
  // for finer control
  tracesSampleRate: 1.0,
});

// RequestHandler creates a separate execution context, so that all
// transactions/spans/breadcrumbs are isolated across requests
app.use(Sentry.Handlers.requestHandler());
// TracingHandler creates a trace for every incoming request
app.use(Sentry.Handlers.tracingHandler());

// the rest of your app

// The Sentry error handler middleware must be registered before any other error middleware and after all controllers
app.use(Sentry.Handlers.errorHandler());

app.listen(3000);