MongoError: getaddrinfo ENOTFOUND undefined undefined:27017

Question

So I'm working my way though the Getting Mean book from Manning and following the steps in Chapter 5 I'm trying to use a db on Mongolab as an add-on to Heroku. When I run this code (both locally and on Heroku) it returns this error:

MongoError: getaddrinfo ENOTFOUND undefined undefined:27017

This is my current code:

var mongoose = require('mongoose');

var dbURI = "mongodb://localhost/loc8r";
if (process.env.NODE_ENV === 'production') {
    dbURI = process.env.MONGOLAB_URI;
}
mongoose.connect(dbURI);

Troubleshooting I started the app from the terminal with:

NODE_ENV=production MONGOLAB_URI=/*my mongo uri here*/

with that it runs fine locally. So I'm not sure where the issue is coming from. Any suggestions for troubleshooting the error listed?

Answer 1

I think you are not providing the PORT NO. required for mongoDB.

Please give the port no.(27017) along with localhost.

Try this:

var dbURI = "mongodb://127.0.0.1:27017/loc8r";

getaddrinfo ENOTFOUND means client was not able to connect to the given address. Please try with the above address.

I hope this helps.

Answer 2

You just missed specifying the port number as shown:

  var dbURI = "mongodb://localhost:27017/thenDBname"

Make sure to change localhost while hosting on production server.

Answer 3

if you use docker with this problem, I solve that with this solution

I have the same problem, other solutions not work for me but i did that with this way

for mongo URI you must use your mongodb service name instead 127.0.0.1 or localhost

for example in below docker-compose file my mongo service name is mongodb-myapp and i change uri like this mongodb://mongodb-myapp:27017/myapp and it works for me

services:
  boilerplate-api-app:
    build: .
    environment:
      - MONGO_URI=mongodb://mongodb-myapp:27017/myapp
    volumes:
      - .:/app
    ports:
      - "5000:5000"
    depends_on:
      - mongodb-myapp

 mongodb-myapp:
    image: mongo
    ports:
      - "27017:27017"

Answer 4

The Heroku environment variable that gets created for an mLab add-on is called MONGODB_URI (MONGOLAB_URI may be a legacy thing).