How to add JSON endpoint: /stats and check if it works It will return responses like: {"commandCount": 3, "lastCommand": "/dotted"} and Calling /stats will not increment commandCount or change the lastCommand value const express = require("express"); const session = require("express-session"); const dotenv = require("dotenv"); dotenv.config(); const app = express(); app.use( session({ secret: "secret-key", resave: false, saveUninitialized: true, }) ); app.use((req, res, next) => { if (!req.session.commandCount) { req.session.commandCount = 0; } if (!req.session.lastCommand) { req.session.lastCommand = ""; } next(); }); app.get("/dotted", (req, res) => { req.session.commandCount++; req.session.lastCommand = "/dotted"; const { word1, word2 } = req.query; const dots = ".".repeat(30 - word1.length - word2.length); const result = `${word1}${dots}${word2}`; res.status(200).contentType("text/html").send(result); }); app.get("/fizzBuzz", (req, res) => { req.session.commandCount++; req.session.lastCommand = "/fizzBuzz"; const start = parseInt(req.query.start); const end = parseInt(req.query.end); let response = ""; for (let i = start; i ${response}`); }); app.get("/gradeStats", (req, res) => { req.session.commandCount++; req.session.lastCommand = "/gradeStats"; const { grades } = req.query; const min = Math.min(...grades); const max = Math.max(...grades); const avg = (grades.reduce((a, b) => a + b) / grades.length).toFixed(2); const result = JSON.stringify({ average: avg, minimum: min, maximum: max }); res.status(200).contentType("application/json").send(result); }); app.get("/rectangle", (req, res) => { req.session.commandCount++; req.session.lastCommand = "/rectangle"; const length = parseInt(req.query.length); const width = parseInt(req.query.width); const area = length * width; const perimeter = 2 * (length + width); const response = { area, perimeter }; res.contentType("application/json"); res.send(response); }); app.get('/stats', (req, res) => { res.json({ commandCount: req.session.commandCount, lastCommand: req.session.lastCommand}); }); const PORT = process.env.PORT || 3000; const HOST = process.env.HOST || 'localhost'; app.listen(PORT, HOST, () => { console.log(`Server running at http://${HOST}:${PORT}`); });