ı have been devoloing an e-commerce system but ı have problem with iyzipay payment api. I make successful request and get response from server but I can't store data comes from server. anyone help?
let returnedData = {}
iyzipay.payment.create(paymentRequest, function (err, result) {
if (err) {
return next(new CustomError("Ödeme başarısız.", 500))
}
return returnedData = result
})
//ı can't see data here and return empty {}
console.log(returnedData)
// but ı can see here when ı wait 1 second
setTimeout(() => {
console.log(returnedData)
}, 1000);
Since you're calling an async function you should await for it's result. That's why your first console log doesn't print the result and ater 1 sec does, because in that time(+ the execution time for the stack) you're getting the result
The function that can be awaited:
function createPayment(paymentRequest) {
return new Promise((resolve, reject) => {
iyzipay.payment.create(paymentRequest, function (err, result) {
if (err) reject(new CustomError("Ödeme başarısız.", 500));
resolve(result);
});
});
}
Generally:
(async () => {
const request = {/* whatever */};
try {
const res = await createPayment(request);
console.log(res); // Now it's here
} catch(e) { console.error(e); }
})();
You're probably in a route so the actual code would be:
app.use('/payment', async (req, res, next) => {
try {
const result = await createPayment(req);
console.log(result); // Now it's here
res.end();
} catch(e) { next(e); }
})
Your first console is getting called before the request gets complete. When waited for 1 sec request is completed and response is stored in the returnData variable. So for your requirement try using promise or call a function to store the response from the create payment function itself with the response as a parameter.