add

server.js

@@ -28,7 +28,12 @@ app.post("/token", async (req, res) => {
 });
 
 app.get("/callback", (req, res) => {
-    res.sendFile(path.join(__dirname, "callback/callback.html"));
+	// Get Hash
+	const hash = req.query.hash;
+	console.log("Hash:", hash);
+
+	// return json
+	res.json({ hash });
 });
 
 const PORT = 3000;