my $clients = {};

websocket '*' => sub {

        my $c = shift;

        my $socket_id = $c->tx->connection;

        $clients->{$socket_id} = $c->tx;
};


##</code><code>##


foreach my $socket_id (keys %{ $clients }) {

        $clients->{$socket_id}->send({ json => { message => "hi" } });
}