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Use paypal-js for loading the JS SDK #77

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Use paypal-js for loading the JS SDK
gregjopa Aug 25, 2023
8f0b827
Add array examples
gregjopa Aug 31, 2023
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169 changes: 91 additions & 78 deletions standard-integration/client/app.js
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Original file line number Diff line number Diff line change
@@ -1,91 +1,104 @@
window.paypal
.Buttons({
async createOrder() {
try {
const response = await fetch("/api/orders", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
// use the "body" param to optionally pass additional order information
// like product ids and quantities
body: JSON.stringify({
cart: [
{
id: "YOUR_PRODUCT_ID",
quantity: "YOUR_PRODUCT_QUANTITY",
},
],
}),
});
import { loadScript } from "https://www.paypalobjects.com/paypal-js/esm/paypal.min.js";
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TIL!!! 💯


const orderData = await response.json();
loadScript({
components: ["buttons", "messages", "hosted-fields"],
clientId: "test",
currency: "USD",
enableFunding: ["venmo"]
}).then((paypal) => {
paypal
.Buttons({
async createOrder() {
try {
const response = await fetch("/api/orders", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
// use the "body" param to optionally pass additional order information
// like product ids and quantities
body: JSON.stringify({
cart: [
{
id: "YOUR_PRODUCT_ID",
quantity: "YOUR_PRODUCT_QUANTITY",
},
],
}),
});

if (orderData.id) {
return orderData.id;
} else {
const errorDetail = orderData?.details?.[0];
const errorMessage = errorDetail
? `${errorDetail.issue} ${errorDetail.description} (${orderData.debug_id})`
: JSON.stringify(orderData);
const orderData = await response.json();

if (orderData.id) {
return orderData.id;
} else {
const errorDetail = orderData?.details?.[0];
const errorMessage = errorDetail
? `${errorDetail.issue} ${errorDetail.description} (${orderData.debug_id})`
: JSON.stringify(orderData);

throw new Error(errorMessage);
throw new Error(errorMessage);
}
} catch (error) {
console.error(error);
resultMessage(
`Could not initiate PayPal Checkout...<br><br>${error}`,
);
}
} catch (error) {
console.error(error);
resultMessage(`Could not initiate PayPal Checkout...<br><br>${error}`);
}
},
async onApprove(data, actions) {
try {
const response = await fetch(`/api/orders/${data.orderID}/capture`, {
method: "POST",
headers: {
"Content-Type": "application/json",
},
});
},
async onApprove(data, actions) {
try {
const response = await fetch(`/api/orders/${data.orderID}/capture`, {
method: "POST",
headers: {
"Content-Type": "application/json",
},
});

const orderData = await response.json();
// Three cases to handle:
// (1) Recoverable INSTRUMENT_DECLINED -> call actions.restart()
// (2) Other non-recoverable errors -> Show a failure message
// (3) Successful transaction -> Show confirmation or thank you message
const orderData = await response.json();
// Three cases to handle:
// (1) Recoverable INSTRUMENT_DECLINED -> call actions.restart()
// (2) Other non-recoverable errors -> Show a failure message
// (3) Successful transaction -> Show confirmation or thank you message

const errorDetail = orderData?.details?.[0];
const errorDetail = orderData?.details?.[0];

if (errorDetail?.issue === "INSTRUMENT_DECLINED") {
// (1) Recoverable INSTRUMENT_DECLINED -> call actions.restart()
// recoverable state, per https://developer.paypal.com/docs/checkout/standard/customize/handle-funding-failures/
return actions.restart();
} else if (errorDetail) {
// (2) Other non-recoverable errors -> Show a failure message
throw new Error(`${errorDetail.description} (${orderData.debug_id})`);
} else if (!orderData.purchase_units) {
throw new Error(JSON.stringify(orderData));
} else {
// (3) Successful transaction -> Show confirmation or thank you message
// Or go to another URL: actions.redirect('thank_you.html');
const transaction =
orderData?.purchase_units?.[0]?.payments?.captures?.[0] ||
orderData?.purchase_units?.[0]?.payments?.authorizations?.[0];
if (errorDetail?.issue === "INSTRUMENT_DECLINED") {
// (1) Recoverable INSTRUMENT_DECLINED -> call actions.restart()
// recoverable state, per https://developer.paypal.com/docs/checkout/standard/customize/handle-funding-failures/
return actions.restart();
} else if (errorDetail) {
// (2) Other non-recoverable errors -> Show a failure message
throw new Error(
`${errorDetail.description} (${orderData.debug_id})`,
);
} else if (!orderData.purchase_units) {
throw new Error(JSON.stringify(orderData));
} else {
// (3) Successful transaction -> Show confirmation or thank you message
// Or go to another URL: actions.redirect('thank_you.html');
const transaction =
orderData?.purchase_units?.[0]?.payments?.captures?.[0] ||
orderData?.purchase_units?.[0]?.payments?.authorizations?.[0];
resultMessage(
`Transaction ${transaction.status}: ${transaction.id}<br><br>See console for all available details`,
);
console.log(
"Capture result",
orderData,
JSON.stringify(orderData, null, 2),
);
}
} catch (error) {
console.error(error);
resultMessage(
`Transaction ${transaction.status}: ${transaction.id}<br><br>See console for all available details`,
);
console.log(
"Capture result",
orderData,
JSON.stringify(orderData, null, 2),
`Sorry, your transaction could not be processed...<br><br>${error}`,
);
}
} catch (error) {
console.error(error);
resultMessage(
`Sorry, your transaction could not be processed...<br><br>${error}`,
);
}
},
})
.render("#paypal-button-container");
},
})
.render("#paypal-button-container");
});

// Example function to show a result to the user. Your site's UI library can be used instead.
function resultMessage(message) {
Expand Down
4 changes: 1 addition & 3 deletions standard-integration/client/checkout.html
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,10 @@
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PayPal JS SDK Standard Integration</title>
<script type="module" src="app.js" defer></script>
</head>
<body>
<div id="paypal-button-container"></div>
<p id="result-message"></p>
<!-- Replace the "test" client-id value with your client-id -->
<script src="https://www.paypal.com/sdk/js?client-id=test&currency=USD"></script>
<script src="app.js"></script>
</body>
</html>