feat(profiling) use continuous profiler instead of the span/txn based…

… one (#161)

* feat(profiling) use continuous profiler instead

* Update src/instrument.ts

Co-authored-by: Abhijeet Prasad <aprasad@sentry.io>

* Update src/instrument.ts

Co-authored-by: Abhijeet Prasad <aprasad@sentry.io>

---------

Co-authored-by: Abhijeet Prasad <aprasad@sentry.io>

src/instrument.ts

@@ -4,6 +4,16 @@ import {nodeProfilingIntegration} from '@sentry/profiling-node';
 Sentry.init({
   dsn: process.env.SENTRY_DSN,
   integrations: [nodeProfilingIntegration()],
-  profilesSampleRate: 1,
   tracesSampleRate: 1,
 });
+
+const client = Sentry.getClient();
+
+if (client) {
+  const profilingIntegration = client.getIntegrationByName("ProfilingIntegration");
+
+  if (profilingIntegration) {
+    // @ts-expect-error this is purposefuly not exposed by the SDK for now
+    profilingIntegration._profiler.start();
+  }
+}