From 094fae38fcabc12b5d9870cc87d697a98aa470a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Efra=C3=ADn=20Roch=C3=ADn?= <roae.85@gmail.com>
Date: Fri, 21 Apr 2023 08:08:59 -0700
Subject: [PATCH] Add log messages on cold/hot requests (#8420)

Co-authored-by: Keith Williams <keithwillcode@gmail.com>
---
 apps/web/middleware.ts | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/apps/web/middleware.ts b/apps/web/middleware.ts
index ca5eb7e6a4..2d4cb61622 100644
--- a/apps/web/middleware.ts
+++ b/apps/web/middleware.ts
@@ -7,9 +7,16 @@ import { CONSOLE_URL, WEBAPP_URL, WEBSITE_URL } from "@calcom/lib/constants";
 import { isIpInBanlist } from "@calcom/lib/getIP";
 import { extendEventData, nextCollectBasicSettings } from "@calcom/lib/telemetry";
 
+let cold = true;
+
 const middleware: NextMiddleware = async (req) => {
   const url = req.nextUrl;
+  const requestHeaders = new Headers(req.headers);
 
+  // This console.log is required to create a report in axios for hot and cold requests
+  console.log(cold ? "Cold Start" : "Hot Start");
+  requestHeaders.set("x-cal-cold-start", cold ? "true" : "false");
+  cold = false;
   if (!url.pathname.startsWith("/api")) {
     //
     // NOTE: When tRPC hits an error a 500 is returned, when this is received
@@ -61,27 +68,19 @@ const middleware: NextMiddleware = async (req) => {
   }
 
   if (url.pathname.startsWith("/api/trpc/")) {
-    const requestHeaders = new Headers(req.headers);
     requestHeaders.set("x-cal-timezone", req.headers.get("x-vercel-ip-timezone") ?? "");
-    return NextResponse.next({
-      request: {
-        headers: requestHeaders,
-      },
-    });
   }
 
   if (url.pathname.startsWith("/auth/login")) {
-    const moreHeaders = new Headers(req.headers);
     // Use this header to actually enforce CSP, otherwise it is running in Report Only mode on all pages.
-    moreHeaders.set("x-csp-enforce", "true");
-    return NextResponse.next({
-      request: {
-        headers: moreHeaders,
-      },
-    });
+    requestHeaders.set("x-csp-enforce", "true");
   }
 
-  return NextResponse.next();
+  return NextResponse.next({
+    request: {
+      headers: requestHeaders,
+    },
+  });
 };
 
 export const config = {