MongoDB - Error: invalid schema, expected mongodb

Question

I\'m new in building application with MEAN Stack, I\'m trying to build a real time chat app, here is my server side :

console.log(\"Server running...!\");

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Answer 1

Try this, it works:

mongoose.connect('mongodb://localhost:27017/shopping');

Answer 2

Just figured out the same problem. Damned windows save quotes in environment.

So if you use windows and wrote this way SET MONGO_URL="mongodb://localhost:27017/{name of your db}" It is not correct.

Correct way is SET MONGO_URL=mongodb://localhost:27017/{name of your db} without quotes.

Also i discovered that you must write protocol exactly - mongodb. There is code what check the protocol from file url_parser.js

var result = parser.parse(url, true);

if(result.protocol != 'mongodb:') {
    throw new Error('invalid schema, expected mongodb');
}

Answer 3

This is because you are using the connection string in an improper format.

You are using localhost:27017/db/chat while it should be mongodb://localhost:27017/db/chat

The pattern for the connection string is mongodb://<HOSTNAME>:<PORT>/<DBNAME>

Article for reference: https://mongodb.github.io/node-mongodb-native/api-generated/mongoclient.html#mongoclient-connect