Implemented a simple authentication scheme with Firebase and Iron Session

src/pages/api/user.ts

@@ -0,0 +1,27 @@
+import {app} from "@/firebase";
+import {sessionOptions} from "@/lib/session";
+import {getAuth} from "firebase/auth";
+import {withIronSessionApiRoute} from "iron-session/next";
+import {NextApiRequest, NextApiResponse} from "next";
+
+const auth = getAuth(app);
+export default withIronSessionApiRoute(user, sessionOptions);
+
+async function user(req: NextApiRequest, res: NextApiResponse) {
+	if (req.session.user) {
+		console.log(auth.currentUser);
+		if (!auth.currentUser) {
+			res.status(401).json({ok: false});
+			return;
+		}
+
+		if (req.session.user.id === auth.currentUser.uid) {
+			res.status(401).json({ok: false});
+			return;
+		}
+
+		res.json({user: req.session.user});
+	} else {
+		res.status(401).json({ok: false});
+	}
+}