Connect mongodb compass with node.js

I’m trying to connect a nodejs with mongodb using mongo db compass and im getting the following error:

MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster. One common reason is that you’re trying to access the
database from an IP that isn’t whitelisted. Make sure your current IP address is on your Atlas cluster’s IP whitelist: https://docs.atlas.mongodb.com/security-whitelist/
at NativeConnection.Connection.openUri (C:\Users\marin\Downloads\Project part2\Project part2\docker_app\node_modules\mongoose\lib\connection.js:797:32)
at C:\Users\marin\Downloads\Project part2\Project part2\docker_app\node_modules\mongoose\lib\index.js:332:10
at C:\Users\marin\Downloads\Project part2\Project part2\docker_app\node_modules\mongoose\lib\helpers\promiseOrCallback.js:32:5
at new Promise ()
at promiseOrCallback (C:\Users\marin\Downloads\Project part2\Project part2\docker_app\node_modules\mongoose\lib\helpers\promiseOrCallback.js:31:10)
at Mongoose._promiseOrCallback (C:\Users\marin\Downloads\Project part2\Project part2\docker_app\node_modules\mongoose\lib\index.js:1153:10)
at Mongoose.connect (C:\Users\marin\Downloads\Project part2\Project part2\docker_app\node_modules\mongoose\lib\index.js:331:20)
at connectDb (C:\Users\marin\Downloads\Project part2\Project part2\docker_app\src\connection.js:9:6)
at Server. (C:\Users\marin\Downloads\Project part2\Project part2\docker_app\server.js:27:3)
at Object.onceWrapper (events.js:519:28) {
reason: TopologyDescription {
type: ‘Unknown’,
servers: Map(1) {
‘cluster0.huaic.mongodb.net:27017’ => [ServerDescription]
},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
logicalSessionTimeoutMinutes: undefined
}
}

My code is:

const mongoose = require("mongoose");
const User = require("./User.model");

const connection = '"mongodb://cluster0.huaic.mongodb.net/myFirstDatabase"';

const connectDb = () => {
  return mongoose
    .connect(connection)
    .then((res) => {
      return res;
    })
    .catch((error) => {
      console.log(error);
    });
};

module.exports = connectDb;

I’ve allowed access from every IP on mongodb atlas and when I try to connect directly to atlas everything works fine.

>Solution :

Your connection string should be like so :

const connection = "mongodb+srv://yourusername:youruserpassword@cluster0.huaic.mongodb.net/yourdatabasename?retryWrites=true&w=majority"

And you set up a user that have that password and that username in this section in your atlas account :