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Event Listener

The widget sends events to the parent window using window.postMessage. Listen for these events to respond to widget actions. 
window.addEventListener('message', (event) => {
    if (event.data?.type === 'close_frame') {
        // Close the modal or remove the iframe
    }
});

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Available Events

Event TypeDescription
close_frameEmitted when the user closes the widget.

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React Example

function PayHoldstation() {
    const [isLoading, setIsLoading] = useState(true);

    const urlIframe = useMemo(() => {
        return `https://pay.capybera.xyz/?wallet=${wallet}&theme=dark&method=buy&token_address=0x8d0d000ee44948fc98c9b98a4fa4921476f08b0d&chain_id=56`;
    }, [wallet]);

    useEffect(() => {
        const handleMessage = (event) => {
            if (event.data?.type === 'close_frame') {
                // Remove view
            }
        };

        window.addEventListener('message', handleMessage);
        return () => {
            window.removeEventListener('message', handleMessage);
            setIsLoading(true);
        };
    }, []);

    return (
        <>
            <iframe
                src={urlIframe}
                className="w-full h-full p-4 rounded-xl overflow-hidden"
                style={{ opacity: isLoading ? 0 : 1 }}
                onLoad={() => {
                    setTimeout(() => {
                        setIsLoading(false);
                    }, 1000);
                }}
            />
            {isLoading && (
                <div className="absolute flex flex-col items-center justify-center">
                    <p>Connecting to Holdstation Pay...</p>
                </div>
            )}
        </>
    );
}