feat(server): Events tracking using Posthog

packages/server/src/services/EventsTracker/events/AuthenticationEventsTracker.ts

@@ -0,0 +1,35 @@
+import { Inject, Service } from 'typedi';
+import { EventSubscriber } from '@/lib/EventPublisher/EventPublisher';
+import { IAuthSignedUpEventPayload } from '@/interfaces';
+import { PosthogService } from '../PostHog';
+import { AUTH_SIGNED_UP } from '@/constants/event-tracker';
+import events from '@/subscribers/events';
+
+@Service()
+export class AuthenticationEventsTracker extends EventSubscriber {
+  @Inject()
+  private posthog: PosthogService;
+
+  /**
+   * Constructor method.
+   */
+  public attach(bus) {
+    bus.subscribe(events.auth.signUp, this.handleTrackSignUpEvent);
+  }
+
+  private handleTrackSignUpEvent = ({
+    signupDTO,
+    user,
+    tenant,
+  }: IAuthSignedUpEventPayload) => {
+    this.posthog.trackEvent({
+      distinctId: user.email,
+      event: AUTH_SIGNED_UP,
+      properties: {
+        firstName: user.firstName,
+        lastName: user.lastName,
+        email: user.email,
+      },
+    });
+  };
+}