First commit

lib/supabase/middleware.ts

@@ -0,0 +1,49 @@
+import { NextResponse, type NextRequest } from "next/server";
+import { createServerClient, type CookieOptions } from "@supabase/ssr";
+
+export type SessionSnapshot = {
+  response: NextResponse;
+  isAuthed: boolean;
+  userEmail: string | null;
+  isConfigured: boolean;
+};
+
+export const updateSession = async (req: NextRequest): Promise<SessionSnapshot> => {
+  const response = NextResponse.next({ request: req });
+
+  const url = process.env.NEXT_PUBLIC_SUPABASE_URL;
+  const anonKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY;
+  if (!url || !anonKey) {
+    return {
+      response,
+      isAuthed: false,
+      userEmail: null,
+      isConfigured: false,
+    };
+  }
+
+  const supabase = createServerClient(url, anonKey, {
+      cookies: {
+        getAll: () => req.cookies.getAll(),
+        setAll: (
+          cookiesToSet: Array<{
+            name: string;
+            value: string;
+            options?: CookieOptions;
+          }>,
+        ) => {
+          cookiesToSet.forEach(({ name, value, options }) => {
+            response.cookies.set(name, value, options);
+          });
+        },
+      },
+  });
+
+  const { data } = await supabase.auth.getUser();
+  return {
+    response,
+    isAuthed: Boolean(data?.user),
+    userEmail: data.user?.email ?? null,
+    isConfigured: true,
+  };
+};