One way to do that is to place the Mojo::IOLoop->client call in a subroutine, as in sub reconnect { Mojo::IOLoop->client( ... ) }, make sure to call that sub once before starting the loop to set up the initial connection, and then, in the handler for the close event, do something like Mojo::IOLoop->timer( 2 => \&reconnect ); to call that subroutine to reestablish the connection. I very much suggest the timer call so as to not flood the server with connection attempts, and I would also recommend adding a counter variable so you can stop attempting to reconnect after a certain number of failed attempts.