send client info to the analytics

packages/api/src/server.ts

@@ -74,6 +74,7 @@ export const createApp = (): Express => {
     if (client) {
       httpContext.set('client', client)
     }
+    // TODO: get client info from user agent
     next()
   })
 

packages/api/src/utils/analytics.ts

@@ -1,4 +1,42 @@
+import httpContext from 'express-http-context2'
 import { PostHog } from 'posthog-node'
 import { env } from '../env'
 
-export const analytics = new PostHog(env.posthog.apiKey || 'test')
+interface AnalyticEvent {
+  distinctId: string
+  event: string
+  properties?: Record<string | number, any>
+}
+
+interface AnalyticClient {
+  capture: (event: AnalyticEvent) => void
+  shutdownAsync?: () => Promise<void>
+}
+
+class PostHogClient implements AnalyticClient {
+  private client: PostHog
+
+  constructor(apiKey: string) {
+    this.client = new PostHog(apiKey)
+  }
+
+  capture({ distinctId, event, properties }: AnalyticEvent) {
+    // get client from request context
+    const client = httpContext.get<string>('client') || 'other'
+
+    this.client.capture({
+      distinctId,
+      event,
+      properties: {
+        ...properties,
+        client,
+      },
+    })
+  }
+
+  async shutdownAsync() {
+    return this.client.shutdownAsync()
+  }
+}
+
+export const analytics = new PostHogClient(env.posthog.apiKey || 'test')