I am unable to making connection to mongodb atlas cluster . i got the MongooseError which as following

Question

Error [MongooseError]: The uri parameter to openUri() must be a string, got "undefined". Make sure the first parameter to mongoose.connect() or mongoose.createConnection() is aongoose\\lib\\error\\mongooseError.js:10:11) string.

 const express = require("express"); const expressLayouts = require("express-ejs-layouts"); const mongoose = require("mongoose"); const MongoClient = require('mongodb').MongoClient; const app = express(); // DB Config const db = require('./config/keys').MongoURI; //Connect to Mongo mongoose.connect(db, { useNewUrlParser: true, useCreateIndex: true ,useUnifiedTopology: true}) .then(() => console.log("MongoDB connected ....")) .catch(err =>console.log(err));

const mongoose = require("mongoose");

    module.exports ={
      mognoURI:"mongodb+srv://pratham:<pratham>@psm-94d4p.mongodb.net/test?retryWrites=true&w=majority"
    };

Answer 1

You need to create a config folder and inside the config folder, you need to add keys.js file

which looks like this

module.exports = {
 MongoURI: 'here goes your connection string which you will get from MongoDB atlas'
 }