can't connect to mongolab with node.js on heroku
heroku, mlab, mongodb, node.js
Solution
The core issue seems to be that you're trying to use a MongoDB URI as a hostname.
Here's how to connect using a URI and `MongoClient`:
var mongodb = require('mongodb');
var uri = 'mongodb://user:pass@host:port/db';
mongodb.MongoClient.connect(uri, function (err, db) {
/* adventure! */
});
Of course you'll want to substitute the `user`, `pass`, `host`, `port`, and `db` in the `uri` for your actual connect parameters. If you're using the MongoLab add-on for Heroku you can get the URI from the environment like this:
var uri = process.env.MONGOLAB_URI;
When using `MongoClient` safe mode is the default, so that option can be left out. To specify `auto_reconnect` simply pass it as a server option.
var mongodb = require('mongodb');
var uri = 'mongodb://user:pass@host:port/db';
mongodb.MongoClient.connect(uri, { server: { auto_reconnect: true } }, function (err, db) {
/* adventure! */
});
Problem
I am having trouble making node.js and mongodb with mongolab work on heroku. I have read other issues like How do I setup MongoDB database on Heroku with MongoLab? and How do I manage MongoDB connections in a Node.js web application? but I still can not set up my connection. In the logs it says [Error: failed to connect to ...] I have takend the db, host and port from the MONGOLAB_URI process env.I have the following code: ``` var mongoUri = mongodb://heroku_app17328644:{password}@ds037518.mongolab.com //taken from process.env.MONGOLAB_URI var host = 'mongodb://heroku_appXXXXXX:{password}@ds037518.mongolab.com'; var port = '37518'; var database = 'heroku_appXXXXXX'; Provider.db = new Db(database, new Server(host, port, { safe: true }, { auto_reconnect: true }, {})); Provider.db.open(function(err, db){ console.log(db); //null if (err) console.log(err); else console.log('success'); }); ``` What am I doing wrong ?