Paypal Expected an order id to be passed

Question

Hi I have not been able to solve this problem for 3 days. I have integrated Paypal smart button to my page and it works. 3 days ago Do not pass Pay-xxx directly gave an erro

Answer 1

I also faced this issue, and I resolved easily.

paypal.Buttons({
    createOrder: function () {
        return fetch('/api/create_payment/', {
                method: "POST",
                headers: {
                    'content-type': 'application/json',
                    'X-CSRFToken': $('[name=csrfmiddlewaretoken]').val()
                }
            }
        )
        .then(function(res) {
            return res.json();
        }).then(function(res) {
            return res['orderId'];
        });
    },
    onApprove: function (data, actions) {
        // Do something after approved...
    }
}).render('#paypal-container');

Here important is, on the back-end, I created order with Paypal V2 api endpoint - https://developer.paypal.com/docs/api/orders/v2/#orders_create