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---
import env from '../lib/env';
const PAYPAL_CLIENT_ID = env.ENVIRONMENT === 'prod'
? env.PAYPAL_LIVE_CLIENT_ID
: env.PAYPAL_SANDBOX_CLIENT_ID;
---
<paypal-buttons data-paypal-client-id={PAYPAL_CLIENT_ID}>
<div id="paypal-button-container"></div>
</paypal-buttons>
<script>
import { PayPalNamespace, loadScript } from '@paypal/paypal-js';
const backendUrl = '/api';
class PayPalButtons extends HTMLElement {
constructor() {
super();
const paypalClientId = this.dataset['paypalClientId'];
if (!paypalClientId || typeof(paypalClientId) !== 'string') {
throw new Error('PayPal Client ID not provided to PayPalButtons component.');
}
const paypalOptions = {
clientId: paypalClientId,
locale: 'en_GB',
commit: false,
currency: 'GBP',
intent: 'capture',
};
loadScript(paypalOptions).catch((err) => {
throw new Error('Failed to load the PayPal JS SDK script. ', err);
}).then(paypal => {
const constructButtons = paypal?.Buttons;
if (paypal && constructButtons) {
this.makePaypalButtons(constructButtons).render('#paypal-button-container');
}
});
}
makePaypalButtons(constructButtons: Required<PayPalNamespace>['Buttons']) {
return constructButtons({
// This function is called to set up the transaction details without actually carrying it out
async createOrder() {
const body = JSON.stringify({
productDescription: "my product description",
shortDescription: "my product",
totalPrice: 15.5,
});
const headers = {
'Content-Type': 'application/json'
};
let response;
try {
response = await fetch(
`${backendUrl}/order`,
{ method: "POST", body, headers }
);
} catch (err) {
throw new Error(`Failed to create order. ${err}`);
}
if (!response.ok) {
throw new Error(`
Failed to create order. Backend response was
${response.status} ${response.statusText}. ${await response.text()}
`);
}
const { orderId, approvalLink } = await response.json();
console.info(`
Successfully created order with ID
${orderId}. Approval link: ${approvalLink}
`);
return orderId;
},
// This function is called after payment is confirmed
async onApprove(data) {
const body = JSON.stringify({
id: data.orderID,
isApproved: true
});
const headers = {
'Content-Type': 'application/json',
};
let response;
try {
response = await fetch(
`${backendUrl}/order`,
{ method: 'PATCH', body, headers }
);
} catch (err) {
throw new Error(`Failed to capture order. ${err}`);
}
if (!response.ok) {
throw new Error(`
Failed to capture order. Backend response was ${response.status}
${response.statusText}. ${await response.text()}
`);
}
const { orderId, requestStatus } = await response.json();
console.info(`
Successfully captured order with ID ${orderId},
request status is ${requestStatus}.
`);
}
});
}
}
customElements.define('paypal-buttons', PayPalButtons);
</script>
|
