How can I close connection Waterline?

[Hagamenon Nicolau]

Hi guys,
I created a API using the Sails.js and Waterline.

I need close connection and restart again. For example:

my database will change:
connections: {
                gustavomendanha: {
                    adapter: 'sails-mysql',
                    host: 'some-host',
                    user: 'some-user', //optional
                    password: 'some-pass', //optional
                    database: dominio.dbname, //optional
                    pool: true,
                    connectionLimit: 10,
                    queueLimit: 0,
                    waitForConnections: true
                }
               
            }
After that, my application will make the operations in datastore, when it finish, my application will change of database, for new database. So, It will close the old connection and open the new connection.
How can I do that?
I was clear?
 
Thanks.