Nano :: create db if not exists

gistfile1.txt

var nano = require('nano')('http://localhost:5984');
var dbName = 'testdb';
var testDb = nano.use(dbName);

nano.db.list(function(error, databases) {
	if (error) 
		return console.log('ERROR :: nano.db.list - %s', JSON.stringify(error));

	if (databases.indexOf(dbName) < 0) {
		nano.db.create(dbName, function(error, body, headers) {
			if (error)
				console.log('ERROR :: %s', JSON.stringify(error));
		})
	}
});