I’m trying to make an application to buy games online. And I’m currently working on the payment page. I’ve implimented a PayPal to PayPal transactions successfully and now i’m working on to make a Credit Card to PayPal transactions. So I’ve made a front end page with all the inputs that I’ve needed : Card Number, Expiration Date and CVV. And I want that when I press on the buy button, the client send the card number, expiration date and cvv to an express api. Then when in the api, I make the payment such like the PayPal to PayPal method that I’ve used.

Here is my Client-side code :

const CreditCardNumber = document.getElementById("CreditCardNumber");
const CreditCardCVV = document.getElementById("CreditCardCVV");
const ExpireMonth = document.getElementById("ExpireMonth");
const ExpireYear = document.getElementById("ExpireYear");

fetch(properties.api + '/getProductByInvoiceToken',{
    method:'POST',
    headers : {
        'Content-Type': 'application/json',
        'Access-Control-Allow-Origin': 'http://127.0.0.1:5500'
    },
    body: JSON.stringify({
        'number' : CreditCardNumber.value,
         'cvv2' : CreditCardCVV.value,
         'expireMonth' : ExpireMonth.options[ExpireMonth.selectedIndex].value,
         'expireYear' : ExpireYear.options[ExpireYear.selectedIndex].value,
    })
})

Here is my code Server-side code :

app.post('/buyWithCreditCard',(req,res)=>{
    const { number, expireMonth, expireYear, cvv } = req.body;
    paypal.payment.create({
        intent: 'sale',
        payer: {
            payment_method: 'credit_card',
            funding_instruments: [{
                credit_card: {
                    number: number,
                    type: 'visa',
                    expire_month: expireMonth,
                    expire_year: expireYear,
                    cvv2: cvv2,
                    first_name: "John",
                    last_name: "Doe"
                }
            }]
        },
        transactions: [{
            amount: {
                total: product.child('Price').val(),
                currency: "USD"
            },
            description: 'Payment desc.'
        }]
    }, function (error, payment) {
        if (error) {
            console.log(error.response);
        } else {
            console.log('LTETT');
        }
    });
});

and every time I’m trying to pay, the app send me the following error :

{
name: 'PAYEE_ACCOUNT_INVALID', 
message: 'Payee account is invalid.', 
information_link: 'https://developer.paypal.com/docs/api/payments/v1/#error-PAYEE_ACCOUNT_INVALID', debug_id: 'cd64907fda648', 
httpStatusCode: 400
}

Can someone please help with this ?

I’m excepting the server to respond correctly