I need help with "Use the .env File"

I was busy on this course Back End Development and APIs I did as it say I was supposed to do I used https://glitch.com to write my code but still it was wrong I tried a youtube tutorial but it was still wrong I can not find any options so could you help me please.

var express = require('express');
var app = express();

app.use(express.static(__dirname + "/public"));

app.get("/", function(req, res) {
  res.sendFile(__dirname + "/views/index.html");
});

app.get("/json", function(req, res) {
  res.json({"message": process.env.VAR_NAME = "uppercase" ? "HELLO JSON": "Hello json"})
})

 module.exports = app;

link to my project Glitch :・゚✧

solution: Glitch :・゚✧

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Challenge: Use the .env File

Link to the challenge:

can you share the link for this challenge.

Can you try this.
npm install dotenv
const dotenv=require(“dotenv”)
dotenv.config();