add posthog analytics proxy

.env.example

@@ -29,12 +29,15 @@ QSTASH_NEXT_SIGNING_KEY=""
 # Stripe
 NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=""
 STRIPE_SECRET_KEY=""
-STRIPE_PRICE_ID=""
 STRIPE_WEBHOOK_SECRET=""
+STRIPE_MONTHLY_PRICE_ID=""
+STRIPE_ANNUAL_PRICE_ID=""
 
 # crisp.chat
 NEXT_PUBLIC_CRISP_WEBSITE_ID=""
 
 # posthog
 NEXT_PUBLIC_POSTHOG_KEY=""
-NEXT_PUBLIC_POSTHOG_HOST=""
+NEXT_PUBLIC_POSTHOG_HOST=""
+NEXT_PUBLIC_POSTHOG_PROXY_HOST="/ioafe"
+POSTHOG_PROXY_PATH="ioafe"

next.config.mjs

@@ -2,6 +2,8 @@
  * Run `build` or `dev` with `SKIP_ENV_VALIDATION` to skip env validation.
  * This is especially useful for Docker builds.
  */
+import { env } from "./src/env.mjs";
+
 !process.env.SKIP_ENV_VALIDATION && (await import("./src/env.mjs"));
 
 /** @type {import("next").NextConfig} */
@@ -46,5 +48,14 @@ const config = {
       },
     ],
   },
+
+  async rewrites() {
+    return [
+      {
+        source: "/" + env.POSTHOG_PROXY_PATH +  "/:path*",
+        destination: env.NEXT_PUBLIC_POSTHOG_HOST + "/:path*",
+      },
+    ];
+  },
 };
 export default config;

src/env.mjs

@@ -32,6 +32,7 @@ const server = z.object({
   STRIPE_WEBHOOK_SECRET: z.string(),
   STRIPE_MONTHLY_PRICE_ID: z.string(),
   STRIPE_ANNUAL_PRICE_ID: z.string(),
+  POSTHOG_PROXY_PATH: z.string(),
 });
 
 /**
@@ -44,6 +45,7 @@ const client = z.object({
   NEXT_PUBLIC_CRISP_WEBSITE_ID: z.string(),
   NEXT_PUBLIC_POSTHOG_KEY: z.string(),
   NEXT_PUBLIC_POSTHOG_HOST: z.string(),
+  NEXT_PUBLIC_POSTHOG_PROXY_HOST: z.string(),
 });
 
 /**
@@ -76,6 +78,8 @@ const processEnv = {
   NEXT_PUBLIC_CRISP_WEBSITE_ID: process.env.NEXT_PUBLIC_CRISP_WEBSITE_ID,
   NEXT_PUBLIC_POSTHOG_KEY: process.env.NEXT_PUBLIC_POSTHOG_KEY,
   NEXT_PUBLIC_POSTHOG_HOST: process.env.NEXT_PUBLIC_POSTHOG_HOST,
+  POSTHOG_PROXY_PATH: process.env.POSTHOG_PROXY_PATH,
+  NEXT_PUBLIC_POSTHOG_PROXY_HOST: process.env.NEXT_PUBLIC_POSTHOG_PROXY_HOST,
 };
 
 // Don't touch the part below

src/pages/_app.tsx

@@ -13,7 +13,7 @@ import { env } from "~/env.mjs";
 // Check that PostHog is client-side (used to handle Next.js SSR)
 if (typeof window !== "undefined") {
   posthog.init(env.NEXT_PUBLIC_POSTHOG_KEY, {
-    api_host: env.NEXT_PUBLIC_POSTHOG_HOST || "https://app.posthog.com",
+    api_host: env.NEXT_PUBLIC_POSTHOG_PROXY_HOST,
     // Enable debug mode in development
     loaded: (posthog) => {
       if (process.env.NODE_ENV === "development") posthog.debug();