Cannot connect to cluster using Mongoose

I’m trying to connect to MongoDB using Mongoose but failing. Here is my code .ENV then databases.JS

mongodb+srv://username:<db_password>@posts.sues86u.mongodb.net/

`const mongoose = require(‘mongoose’)

const connectDB = async () => {
try {
const connect = await mongoose.connect(process.env.MONGO_URI)
console.log(MongoDB Connected: ${connect.connection.host})
} catch (err) {
console.log(err)
process.exit(1)
}
}

module.exports = connectDB`