🤖 Merge PR DefinitelyTyped#74864 [express-session] Update cookie option to accept a function for v1.19.0 by @lincond

Co-authored-by: Ravi van Rooijen <ravivanrooijen@live.nl>

Author: lincond

types/express-session/express-session-tests.ts

@@ -73,6 +73,13 @@ app.use(
     }),
 );
 
+app.use(
+    session({
+        secret: "keyboard cat",
+        cookie: (req) => ({ secure: req.secure }),
+    }),
+);
+
 // Various `crypto.CipherKey` types
 app.use(session({ secret: Buffer.from("keyboard cat", "utf8") }));
 app.use(session({ secret: crypto.createSecretKey(Buffer.from("keyboard cat", "utf8")) }));

types/express-session/index.d.ts

@@ -85,10 +85,10 @@ declare namespace session {
         store?: Store | undefined;
 
         /**
-         * Settings object for the session ID cookie.
+         * Settings object for the session ID cookie, or a callback that dynamically generates it based on the incoming request.
          * @see CookieOptions
          */
-        cookie?: CookieOptions | undefined;
+        cookie?: CookieOptions | ((req: express.Request) => CookieOptions) | undefined;
 
         /**
          * Force the session identifier cookie to be set on every response. The expiration is reset to the original `maxAge`, resetting the expiration countdown.

types/express-session/package.json

@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@types/express-session",
-    "version": "1.18.9999",
+    "version": "1.19.9999",
     "projects": [
         "https://github.com/expressjs/session"
     ],