fix next template

Author: ian

templates/repo/packages/analytics/src/server.ts

@@ -7,19 +7,30 @@ export { getFeatureFlags } from "./vendor/posthog"
 
 export type { Flags } from "./types"
 
-const posthog = new PostHog(
-	process.env.POSTHOG_API_KEY || "",
-	{
-		host: process.env.POSTHOG_HOST || "https://app.posthog.com"
+function client() {
+	const apiKey = process.env.POSTHOG_API_KEY
+
+	if (!apiKey) {
+		return null
 	}
-)
+
+	return new PostHog(apiKey, {
+		host: process.env.POSTHOG_HOST || "https://app.posthog.com"
+	})
+}
 
 /**
  * Tracks one or more analytics events server-side using PostHog.
  * 
  * @param eventData - An AnalyticsEvent object or an array of AnalyticsEvent objects to track.
  */
 export async function track(eventData: AnalyticsEvent | AnalyticsEvent[]) {
+	const posthog = client()
+
+	if (!posthog) {
+		return
+	}
+
 	const events = Array.isArray(eventData) ? eventData : [eventData]
 
 	events.forEach(({ event, ...rest }) => {
@@ -32,6 +43,5 @@ export async function track(eventData: AnalyticsEvent | AnalyticsEvent[]) {
 		})
 	})
 
-	// Flush to ensure events are sent
 	await posthog.flush()
 }

templates/repo/packages/analytics/src/vendor/posthog.ts

@@ -15,28 +15,19 @@ export type FlagName = keyof Flags
  * Fetches feature flags for the specified user from the PostHog service.
  *
  * Returns an object mapping feature flag names to their values for the given user.
+ * If PostHog is not configured (missing API key or host), returns an empty object.
  *
  * @param distinctUserId - The unique identifier for the user whose feature flags are being retrieved.
  * @returns An object containing feature flag values for the user. Boolean values indicate A/B test flags; string values indicate multivariate flags.
  *
- * @throws {Error} If required environment variables are missing or if the request to the PostHog service fails.
+ * @throws {Error} If the request to the PostHog service fails.
  */
 export async function getFeatureFlags(distinctUserId: string): Promise<Flags> {
-	if (!POSTHOG_HOST) {
-		console.warn(
-			"No PostHog environment variables found, skipping feature flag lookup."
-		)
-		console.warn(
-			"Set POSTHOG_API_KEY and POSTHOG_HOST in your environment variables."
-		)
+	if (!POSTHOG_HOST || !POSTHOG_API_KEY) {
 		return {}
 	}
-	if (!POSTHOG_API_KEY) {
-		throw new Error("The environment variable POSTHOG_API_KEY is missing.")
-	}
 
 	if (!distinctUserId) {
-		// throw new Error(`distinctUserId is required and it can't be empty`);
 		return {} as Flags
 	}