Cannot read property 'program' of undefined in cookies? - node.js

Question

I am beginner in Nodejs program I tried to do simple cookies program.I successfully set and delete the cookies successfully.but I could not get the cookies what I set before.It shows an error.can anyone tell me how to get the cookie in nodejs Thanks in advance....
const express=require("express");
const cookieParser=require("cookie-parser");
const app=express();
const router=express.Router();
const port=process.env.Port||8086;
app.use(router);
app.use(cookieParser());
router.get("/setcookie",function(req,res)
{
console.log("Come in to set the cookie");
res.cookie("program","NodeJS"/*,{maxAge:60000}*/);
res.cookie("Database","MongoDB"/*,{maxAge:1200000}*/);
console.log("Cookie set successfully");
res.send("Cookie set successfully");
});
router.get("/deletecookie",function(req,res)
{
console.log("come in to delete the cookie");
res.clearCookie("program");
res.send("Cookie deleted successsfully");
});
router.get("/getcookie",function(req,res)
{
console.log("Come in to read the cookie");
console.log(req.cookies['program']);
console.log(req.cookies['Database']);
res.send("Cookie Accessed successfully");
});
app.listen(port,function()
{
console.log("server is listening on port 8086");
});
ERROR I GOT:
TypeError: Cannot read property 'program' of undefined
at C:\Users\VIGNESH\WebstormProjects\cookies-middleware\simple-cookies.js:25:28
at Layer.handle [as handle_request] (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\layer.js:95:5)
at next (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\layer.js:95:5)
at C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\index.js:281:22
at Function.process_params (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\index.js:335:12)
at next (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\index.js:275:10)
at Function.handle (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\index.js:174:3)
at router (C:\Users\VIGNESH\WebstormProjects\cookies-middleware\node_modules\express\lib\router\index.js:47:12)

Answer 1

You need to add the cookieParser() before the router, so the code will be
app.use(cookieParser());
app.use(router);
Because otherwise the control is not even getting into cookieParser