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node.jsexpressdotenv

Why server is running on undefined after using dotenv?

I am facing problem while using dotenv in my project and it showing like 'server is running bro on---> undefined'

require('dotenv').config()

const express= require ('express')
const mongoose=require ('mongoose')
const connectDb = require('./config/config')
const productRoute=require('./routes/ProductRoute')
connectDb()

const app=express()

app.use('/api',productRoute)

const port=process.env.PORT
app.listen(port,()=>{
    console.log(`server is running bro on---> ${port}`);
    
})
Solution

  • I assume you have PORT defined in your .env file? I tried out your code, and it works for me.