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I was recently faced with a challenge to update a button payment reference on success and failure and this was how react useCallback hook came to the rescue
// import { PaystackConsumer } from ‘react-paystack’;
// export default function PaystackButton() { // // Generate initial config with a function to ensure dynamic reference updates. // const config = { amount: 1000 }; // const getUpdatedConfig = () => ({ // email: ’love@.com’, // amount: config.amount, // Amount is in the country’s lowest currency. E.g Kobo, so 20000 kobo = N200 // publicKey: ‘pktest’, // reference: new Date().getTime().toString(), // Generate a new reference on each call // metadata: { // custom_fields: [ // { // group_name: ‘ATM MOVIES’, // }, // // To pass extra metadata, add an object with the same fields as above // ], // }, // });
// const handleSuccess = (reference) => { // console.log(reference); // };
// const handleClose = () => { // console.log(‘closed’); // };
// return ( // <PaystackConsumer // {…getUpdatedConfig()} // text=“Pay Now” // onSuccess={handleSuccess} // onClose={handleClose} // > // {({ initializePayment }) => ( // <button // type=“button” // onClick={() => initializePayment(getUpdatedConfig(), handleSuccess, handleClose)} // > // Pay {config.amount / 100} // // )} // // ); // }
import React, { useState, useCallback } from ‘react’; import { PaystackConsumer } from ‘react-paystack’;
export default function PaystackButton() { const [key, setKey] = useState(0); // Add a key state to force re-render const config = { amount: 1000 };
const getUpdatedConfig = useCallback(
() => ({
email: ’lol my email’,
amount: config.amount, // Amount is in the country’s lowest currency. E.g Kobo, so 20000 kobo = N200
publicKey: ’lol my key’,
reference: ${new Date().getTime()}, // Generate a new reference on each call
metadata: {
custom_fields: [
{
group_name: ‘ATM MOVIES’,
},
// To pass extra metadata, add an object with the same fields as above
],
},
}),
[key]
); // Add key as a dependency to update config when key changes
const handleSuccess = useCallback((reference) => { console.log(reference); setKey((prevKey) => prevKey + 1); // Update key to force re-render on success }, []);
const handleClose = useCallback(() => { console.log(‘closed’); setKey((prevKey) => prevKey + 1); // Update key to force re-render on close }, []);
return ( <PaystackConsumer {…getUpdatedConfig()} text=“Pay Now” onSuccess={handleSuccess} onClose={handleClose} > {({ initializePayment }) => ( <button key={key} // Use key here to force re-render the button as well type=“button"key onClick={() => initializePayment(getUpdatedConfig(), handleSuccess, handleClose)} > Pay {config.amount / 100} )} ); }