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how to connect to another mongodb database as superuser using nodejs

how to connect to another mongodb database as superuser using nodejs  using -'node.js,security,mongodb'

The solution to this problem works fine:

Instead of doing:

$ mongo my_db_name -u superuser -p 1234

I do

$ mongo admin -u superuser -p 1234 # connecting as super user to admin db
> use anotherDb

in shell.

Which is the solution in NodeJS?

I tried to connect to mongodb://superuser:1234@localhost:27017/my_db_name but I get this error:

  { [MongoError: auth fails] name: 'MongoError', code: 18, ok: 0, errmsg: 'auth fails' }

My code is:

var Db = require('mongodb').Db,
    MongoClient = require('mongodb').MongoClient;

    function(err, db) {
       if (err) { return console.log(err); }
       console.log("Successfully connected.");

Note that superuser is the omnipotent user that can write and read rights in any database.

If I do MongoClient.connect("mongodb://superuser:1234@localhost:27017/admin (replaced my_db_name with admin) it connects successfully. Why?

How can I connect to the my_db_name using superuser and the password (1234)?

asked Sep 30, 2015 by balvant maurya
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2 Answers

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A solution would be to use a shell script that is executed from Nodejs side:

mongo <

Then I am able to use the following connection string: "mongodb://test:12345@localhost:27017/my_db_name".

This solution works, but I am still looking for the Mongo native solution.

answered Sep 30, 2015 by akasati02
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You can use the Db().db(dbname) method to create a new Db instance sharing the same connection.

So you can authenticate to the admin db and change to another_db:

db.auth("superuser", "1234");
another_db = db.db("another_db");
answered Sep 30, 2015 by akhilesh