use Poloniex::API; 

my $api = Poloniex::API->new(
	APIKey => 'your-api-key',
	Secret => 'your-secret-key'
);

my $iterator = Poloniex::API->new(%hash);

my $returnCompleteBalances = $api->api_trading('returnCompleteBalances');
$api->api_trading('returnTradeHistory', {
    currencyPair => 'BTC_ZEC'
});

my $Ticker = $api->api_public('returnTicker');

my $ChartData    = $api->api_public('returnChartData', {
    currencyPair => 'BTC_XMR',
    start        => 1405699200,
    end          => 9999999999,
    period       => 14400
});

handle_api_error($api, $api->api_public('fake'))

sub handle_api_error {
    my ( $api, $retval ) = @_;
    unless ( $retval ) {
        die sprintf("Error: %s; type: %s", $api->{msg}, $mapi->{type});
    }
}