I’m using mongodb as my NoSQL database of choice for Wishd.me
Here is how I backed up mongodb using mongodump as described here
First, ssh to the production database server, then use mongodump with the –db argument to specify which database to dump:
mongodump --db example_production
tar czf ./dump.tgz ./dump
scp dump.tgz email@example.com
This will create a ./dump folder that you can then tar up and gzip and transfer down to your local development server.