Hi, I have a simple version of MongoDB set up on my laptop (no sharding, nodes etc).

I have entered some simple data.

I want to be able to create reports on this using Jaspersoft iReport.

When I create a datasource connection from within iReport to MongoDB I am asked for 3 things
1 MongoURI
2 Username
3 Password

The pre-filled default for 1 is 'mongodb://HOST:27017/DB_NAME'
I assume I substitute DB_NAME for towns (my recently created database) - but this doesn't work.
I also assume I can leave a username and password as blank?

Thank you.
Stuart