Calling a function between createOrder and onApprove.

[swisalem]

Im making a website fo a movie theater (a school project) and when the customer presses the confirm button (to complete the payment) i want to check some things like if the seats he chose are not taken by someone else, if the seats are still free - the payment can be done, but if the seats are taken i want to abort the payment and send him to the home page and show an error message.

So, i need to call the function as soon as the customer hits the confirm button and i cant seem to find a way.

paypal.Buttons({
    style: {
        layout: 'horizontal',
        label: 'checkout'
    },
    // Set up the transaction
    createOrder: function (data, actions) {
        setInterval(checkValidSeats, 1000);
        return actions.order.create({
            purchase_units: [{
                amount: {
                    value: !{JSON.stringify(priceafter)}
                }
            }]
        });
    },
    // Finalize the transaction
    onApprove: function (data, actions) {
        return actions.order.capture().then(function (details) {
            // Show a success message to the buyer
            $('#alert-modal-title').html('Success!');
            $('#alert-modal-body').html('Transaction completed by ' + details.payer.name.given_name + '!');
            $('#alert-modal').modal('show');
        });
    }
}).render('#checkout');

[Brisbane22]

Hi,

Late reply but hope it can help

 onApprove: function (data, actions) {
        return actions.order.capture().then(function (details) {

What about trying something like

 onApprove: function (data, actions) {
        if (some problem) {
                return actions.order.patch([
                   {
                      op: 'replace' // etc etc whatever is appropriate
                   } ]);
        }
        return actions.order.capture().then(function (details) {

 or maybe an
actions.order.reject (not sure if 'reject' is the correct name, I haven't had to use it)

[Brisbane22]

Update:

I believe it is

return actions.reject();

which would take you back to your screen. You could update your own screen before doing the reject, and it would show once the paypal overlay iframe is removed.