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Connect to MongoDB on aws vpc through Node JS

I set up a mongo db with a ssh tunnel that was deployed on a new vpc (Amazon Linux), I followed the instruction here:

https://docs.aws.amazon.com/quickstart/latest/mongodb/step2.html

I'm able to connect to my db through PuTTY, Mongo Compass, and Robo3T, but I can't find out a way to connect to my db through Node JS. I tried to use 'tunnel-ssh' package, but I can't still connect to my db. I got this error :

AssertionError [ERR_ASSERTION]: null == { MongoNetworkError: failed to connect to server [PrimaryReplicaNode0-PrivateIPs:27017] on first connect [MongoNetworkError: connect ETIMEDOUT 10...


Here is my code:

import MongoClient, ObjectID from 'mongodb';
import format from 'util';
import tunnel from 'tunnel-ssh';
import assert from 'assert';

const user = encodeURIComponent('username');
const password = encodeURIComponent('password');
const authMechanism = 'SCRAM-SHA-1';
const url = format('mongodb://%s:%s@PrimaryReplicaNode0-PrivateIPs:27017/?authMechanism=%s&authSource=admin&ssl=false', user, password, authMechanism);

const sshConfig =
usesrname: 'ec2-user',
host: 'LinuxBastion-PublicDNS(IPv4)',
port: 22,
dstHost: 'PrimaryReplicaNode0-PrivateIPs',
dstPort: 27017,
privateKey:require('fs').readFileSync('ssh/key-pair.pem'),
localHost:'127.0.0.1',
localPort: 3000
;
var tnl = tunnel (sshConfig, (error, server) =>
if (error)
console.log("SSH connection error: " + error);


MongoClient.connect(url, useNewUrlParser: true , (err, client) =>
assert.equal(null, err);
console.log("Connected correctly to server!");
tnl.close();




I googled for a whole week, but everything's still negative, so anyone has experiences on this one, please help me out a bit.

Thank you.

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