wip

packages/nextjs/middleware.ts

@@ -0,0 +1,31 @@
+import { NextRequest, NextResponse } from "next/server";
+import { SanityType } from "utils/consts";
+
+export const config = {
+  matcher: ["/", "/categories", "/products", "/products/:slug*"],
+};
+
+export function middleware(request: NextRequest) {
+  const responseHeaders = new Headers();
+  responseHeaders.set("Cache-Control", "public, max-age=0");
+  responseHeaders.set("Surrogate-Control", "max-age=604800, stale-while-revalidate=120000, stale-if-error=600000");
+
+  if (request.nextUrl.pathname === "/" || request.nextUrl.pathname === "/categories") {
+    const keys = [SanityType.Category, SanityType.CategoryImage];
+    responseHeaders.set("Surrogate-Key", keys.join(" "));
+  }
+
+  if (request.nextUrl.pathname === "/products") {
+    const keys = [SanityType.Product, SanityType.Style, SanityType.Flavour, SanityType.Variant];
+    responseHeaders.set("Surrogate-Key", keys.join(" "));
+  } else if (request.nextUrl.pathname.startsWith("/products")) {
+    const [, slug] = request.nextUrl.pathname.split("/");
+    // TODO
+  }
+
+  const response = NextResponse.next({
+    headers: responseHeaders,
+  });
+
+  return response;
+}