Adds support for `customCollectEndpoint`

pages/_middleware.js

@@ -1,5 +1,19 @@
 import { NextResponse } from 'next/server';
 
+function customCollectEndpoint(req) {
+  const collectEndpoint = process.env.API_COLLECT_ENDPOINT;
+
+  if (collectEndpoint) {
+    const url = req.nextUrl.clone();
+    const { pathname } = url;
+
+    if (pathname.endsWith(collectEndpoint)) {
+      url.pathname = '/api/collect';
+      return NextResponse.rewrite(url);
+    }
+  }
+}
+
 function customScriptName(req) {
   const scriptName = process.env.TRACKER_SCRIPT_NAME;
 
@@ -24,7 +38,7 @@ function forceSSL(req, res) {
 }
 
 export function middleware(req) {
-  const fns = [customScriptName];
+  const fns = [customCollectEndpoint, customScriptName];
 
   for (const fn of fns) {
     const res = fn(req);