Getting error while connecting to mongoDB database using Node.js

Question

I am getting the following error while connecting the mongoDB database present in MLAB using Node.js.

Error in DB connection : {
  "name": "MongoNetworkError",
  "errorLabels": [
    "TransientTransactionError"
  ]
}

Here is my code:

var mongoose = require('mongoose');
const authData =  {
    "useNewUrlParser": true,
    "useCreateIndex": true
};
//connecting local mongodb database named test
mongoose.connect(
  'mongodb://subhra:*****@ds139989.mlab.com:39989/hlloyd',
  {useCreateIndex: true, useNewUrlParser: true,useUnifiedTopology: true },
  (err)=>{
    if (!err) 
      console.log('MongoDB connection succeeded.');
    else 
      console.log('Error in DB connection : ' + JSON.stringify(err, undefined, 2));
  }
);

module.exports = mongoose;

Here my database is present inside MLAB but when I am tring to connect to that DB its throwing me that error. I need to connect to my database here.

do you have IP whitelist enabled for your account or something? sometimes it might happen for IP whitelisting as well. — Saikat Chakrabortty, Sep 10 '19 at 10:25
Possible duplicate of [What is a TransientTransactionError in Mongoose (or MongoDB)?](https://stackoverflow.com/questions/52153538/what-is-a-transienttransactionerror-in-mongoose-or-mongodb) — Saikat Chakrabortty, Sep 10 '19 at 10:25

score 0 · Answer 1 · answered Sep 10 '19 at 12:11

"useCreateIndex": true and useUnifiedTopology: true is deprecated .

Try out the following code to connect your mongoDB database .

mongoose.connect('mongodb://subhra:*****@ds139989.mlab.com:39989/hlloyd', {useNewUrlParser: true})
.then(() => console.log("Connected"))
.catch(err => console.log(err));

module.exports = mongoose;

score 0 · Answer 2 · answered Sep 10 '19 at 15:51

0

Please add your current IP or 0.0.0.0 to whiteList following "main page > security section > network access > add IP" in MongoDB website.

I hope this helps.

answered Sep 10 '19 at 15:51

Bivin Vinod

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Getting error while connecting to mongoDB database using Node.js

2 Answers2