good enough

src/routes/api/auth/signout.ts

@@ -0,0 +1,25 @@
+import type { APIEvent } from "@solidjs/start/server";
+import { getCookie, getEvent, setCookie } from "vinxi/http";
+
+export async function POST() {
+  "use server";
+  const event = getEvent()!;
+
+  // Clear the userIDToken cookie (the actual session cookie)
+  setCookie(event, "userIDToken", "", {
+    path: "/",
+    httpOnly: true,
+    secure: process.env.NODE_ENV === "production",
+    sameSite: "lax",
+    maxAge: 0, // Expire immediately
+    expires: new Date(0) // Set expiry to past date
+  });
+
+  // Redirect to home page
+  return new Response(null, {
+    status: 302,
+    headers: {
+      Location: "/"
+    }
+  });
+}