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PayPal integration with PHP: which API and credentials to use? – PHP Versions

I am trying to integrate paypal api with PHP compared to the old button form that I have used to date on my sites. But there is one thing that is not clear to me, is it more correct to integrate paypal with client_id and secret or through the codes provided in the account panel (api username, api password and signature)? I followed the REST API integration guide (version 2) but they require client_id and secret. So what is the data in the account panel for? Anyone can clarify my ideas? Thank you

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2

Answers


  1. 0

    The API username, password, and signature is used by the classic NVP/SOAP APIs, which are much older than the REST API. They exist only for backwards compatibility with old shopping cart software and such integrations.

    The v2/checkout/orders API should be used for current PayPal Checkout integrations. Pair two routes on your server (one for create order, one for capture order) that return/output only JSON data (never any HTML or text) with this JS approval flow.

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  2. 0

    I would go with JS SDK inline integration – requires client-id only and is more flexible than checkout buttons. Also creates nice user experience as if staying on the page (no redirects to 3rd party site). See all demos here.

    paypal.Buttons({

    createOrder: function(data, actions) {
        return actions.order.create({
            // note: custom_id (127 chars) will be passed later back in capture
            purchase_units: [{
                amount: {
                    value: amtDue.toFixed(2),
                    currency: 'EUR'
                },
                description : description,
                custom_id : '<?= $encryptedPaymentData ?>'
            }]
        });
    },

    onApprove: function(data, actions) {
        $("#global-spinner").show();
        // set custom capture handler
        return actions.order.capture().then(function(details) {
            $.ajax({
                type: "POST",
                url: "/paypal/success",
                data: ({
                    details : details,
                    ad : amtDue,
                    desc : description,
                    _token : '<?= $csrf ?>'
                }),
                success: function(resp) {
                    $("#global-spinner").hide();
                    window.showThankYou(); // some "thank you" function
                },
                error: function() {
                    $("#global-spinner").hide();
                    alert("Connection error.");
                }
            });
        });
    },

    onError:  function (err) {
        // some custom function - send error data to server logger
        window.handlePaypalError(err, description, amtDue);
    }

}).render('#paypal-button-container');
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