From 096a1235b5b8115b87f056e452afc5b7f2f6024f Mon Sep 17 00:00:00 2001
From: Michael Wolf <mw@philologue.net>
Date: Sun, 11 Jan 2026 15:31:59 -0600
Subject: [PATCH] Add basic logout

---
 express/basic/logout.ts       | 38 +++++++++++++++++++++++++++++++++++
 express/basic/routes.ts       |  2 ++
 express/routes.ts             |  1 +
 templates/basic/home.html.njk |  2 ++
 4 files changed, 43 insertions(+)
 create mode 100644 express/basic/logout.ts

diff --git a/express/basic/logout.ts b/express/basic/logout.ts
new file mode 100644
index 0000000..a1f7dc8
--- /dev/null
+++ b/express/basic/logout.ts
@@ -0,0 +1,38 @@
+import { SESSION_COOKIE_NAME } from "../auth/token";
+import { services } from "../services";
+import type { Call, Result, Route } from "../types";
+import { redirect } from "../util";
+
+const logoutHandler = async (call: Call): Promise<Result> => {
+    // Extract token from cookie and invalidate the session
+    const token = services.auth.extractToken(call.request);
+    if (token) {
+        await services.auth.logout(token);
+    }
+
+    // Clear the cookie and redirect to login
+    const redirectResult = redirect("/login");
+    redirectResult.cookies = [
+        {
+            name: SESSION_COOKIE_NAME,
+            value: "",
+            options: {
+                httpOnly: true,
+                secure: false,
+                sameSite: "lax",
+                maxAge: 0,
+                path: "/",
+            },
+        },
+    ];
+
+    return redirectResult;
+};
+
+const logoutRoute: Route = {
+    path: "/logout",
+    methods: ["GET", "POST"],
+    handler: logoutHandler,
+};
+
+export { logoutRoute };
diff --git a/express/basic/routes.ts b/express/basic/routes.ts
index a27b6cd..d5b1f20 100644
--- a/express/basic/routes.ts
+++ b/express/basic/routes.ts
@@ -3,6 +3,7 @@ import { services } from "../services";
 import type { Call, Result, Route } from "../types";
 import { html, render } from "../util";
 import { loginRoute } from "./login";
+import { logoutRoute } from "./logout";
 
 const routes: Record<string, Route> = {
     hello: {
@@ -29,6 +30,7 @@ const routes: Record<string, Route> = {
         },
     },
     login: loginRoute,
+    logout: logoutRoute,
 };
 
 export { routes };
diff --git a/express/routes.ts b/express/routes.ts
index ba3688a..8fa77ca 100644
--- a/express/routes.ts
+++ b/express/routes.ts
@@ -28,6 +28,7 @@ const routes: Route[] = [
     basicRoutes.home,
     basicRoutes.hello,
     basicRoutes.login,
+    basicRoutes.logout,
     {
         path: "/slow",
         methods: ["GET"],
diff --git a/templates/basic/home.html.njk b/templates/basic/home.html.njk
index 3dd682d..20af87f 100644
--- a/templates/basic/home.html.njk
+++ b/templates/basic/home.html.njk
@@ -5,7 +5,9 @@
       home
     </p>
     <p>
+      
       {{ email }}
     </p>
+    <a href="/logout">logout</a>
   </body>
 </html>