Olo Pay JS

Olo Pay JS Examples

Skip to Credit Card Elements

Skip to CVV Element

Skip to Digital Wallets

Olo Pay JS Upgrades

Introduction

Olo Pay JS allows API partners to easily add PCI-compliant credit card and digital wallet web elements (Apple Pay and Google Pay) to their checkout forms while seamlessly integrating with the Olo Ordering API. The library wraps Stripe JS functionality which offers the benefits of handling validation, styling, accessibility, and responsiveness for:

- Credit card input elements: PCI-compliant credit card input elements are wrapped in Stripe-hosted iframe elements so that credit card data is secure.

- CVV input element: PCI-compliant CVV input element is wrapped in Stripe-hosted iframe element so that card CVV can be revalidated.

- Plug-and-play digital wallets support: Payment button that integrates with Google Chrome and Safari payment sheets to complete the checkout process.

Documentation for Stripe Elements and Digital Wallets can be referenced for functionality and types not included here.

#### Caution: Olo Pay JS is only built to work within Olo's partner ecosystem and requires Olo Pay as the payment processor.

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The library can be used to generate a payment method object which can be passed to the Olo Ordering API, replacing the current need to pass credit card PANs and CVVs to Olo.

Using the Library

Olo Pay JS is available on the NPM Registry (@olo/pay).

Installing from NPM will include Olo Pay JS types for those using TypeScript, while loading the library from a script tag will accommodate more import mechanisms.

NPM

``sh
npm install @olo/pay
`

Yarn

`sh
yarn add @olo/pay
`

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Creates three separate elements for card number, expiration date, and cvv code.

`js
import { CreditCardElements } from '@olo/pay';

const cardElements = new CreditCardElements();
cardElements.create();
`

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Creates one single-line input that contains card number, expiration date, cvv code, and zipcode (optional).

`js
import { SingleLineCardElement } from '@olo/pay';

const cardElement = new SingleLineCardElement();
cardElement.create();
`

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Creates an individual element for revalidating cvv code.

`js
import { CVVElement } from '@olo/pay';

const cvvElement = new CvvElement();
cvvElement.create();
`

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`js
import { DigitalWallets } from '@olo/pay';

function callback() {}

const paymentOptions = {
options: {
country: 'US',
currency: 'usd',
total: {
label: 'Pay [brand name]',
amount: 7672,
},
},
};

const digitalWallets = new DigitalWallets();

await digitalWallets.initialize(paymentOptions);

digitalWallets.mountButton(callback);
`

TypeScript Support

The library supports TypeScript and import types (TS >= 3.8):

`ts
import { CreditCardElements as CardElements } from '@olo/pay';
import type { ElementClasses, Elements, Environment, MountTargets } from '@olo/pay';
`

If you are using a TypeScript version less than 3.8, you may still import types using the standard import syntax.

`ts
import {
CreditCardElements as CardElements
ElementClasses,
Elements,
Environment,
MountTargets,
} from '@olo/pay';
`

Integration

ES Modules and are supported for use:

`sh
npm install @olo/pay
`

`js
import { CreditCardElements, CvvElement, DigitalWallets } from '@olo/pay';
`

Development, Test, or Production Environment

The most important option to pass to a new Olo Pay instance is the environment in which you want to run transactions. This accepts a string of development, test, or production (defaulting to development if nothing is passed). Cards will not be charged in development mode; cards WILL be charged in production mode.

When test mode is enabled, pressing the Digital Wallets button will immediately return a test payment method—bypassing the payment sheet altogether. This is useful for automation tests, which by design cannot hook into or step through a browser's payment sheet.

Note: Specifying an environment will tell the library to include the corresponding key.

`js
const cardElementsDefault = new CreditCardElements(); // Will use the development API key

const cardElements = new CreditCardElements('development'); // Will use development API key

const cvvElementDefault = new CvvElement(); // Will use the development API key

const cvvElement = new CvvElement('development'); // Will use development API key

const digitalWallets = new DigitalWallets('production'); // Will use production API key

const digitalWalletsTest = new DigitalWallets('test'); // Will bypass the payment sheet when the button is pressed
`

Credit Card Elements

Check out this example to get started.

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The MountTargets and Placeholders objects have been changed to use the key name cvv in favor of cvc.

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Import the library and create a new instance of CreditCardElements:

`ts
import { CreditCardElements } from '@olo/pay';

const cardElements = new CreditCardElements();
cardElements.create();
`

The create method will create new iframes for each card element (number, expiry, and CVV) and then mount them to DOM targets that are marked with data-olo-* attributes by default:

`html



The create method also takes in optional mountTargets which accept string selectors or HTML elements.

`js
const options = {
mountTargets = {
number: '#custom-card-number-selector',
expiry: cardExpiryElement, // HTML element
cvv: '[data-cvv-target]',
}
}

cardElements.create(options);
`

If the elements can be found in the DOM, the iframes will be injected into their designated mount targets.

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Options for customization can be passed to the CreditCardElements instance in several different ways at different times in the app lifecycle.

When calling the create method from a CreditCardElements instance, optional fields can be passed in through a CreditCardOptions object (if this is left blank, defaults will be used):

#### Object shape

`ts
interface CreditCardOptions {
cardElementOptions?: CardElementOptions;
cardNumberElementOptions?: {
showIcon: boolean;
};
elementsOptions?: ElementsOptions;
mountTargets?: MountTargets;
placeholders?: CardInputPlaceholders;
}

interface MountTargets {
cvv: string | HTMLElement;
expiry: string | HTMLElement;
number: string | HTMLElement;
}

interface CardInputPlaceholders {
cvv: string;
expiry?: string;
number?: string;
}
`

#### Example

`js
import { CreditCardElements } from '@olo/pay';

const environment = env === 'PRODUCTION' ? 'production' : 'development';

const options: CreditCardOptions = {
elementsOptions: {
fonts: [
{
cssSrc: 'https://fonts.googleapis.com/css2?family=Mr+Dafoe&family=Pacifico',
},
],
},
cardElementOptions: {
classes: {
base: 'custom',
complete: 'custom-name--complete',
empty: 'custom-name--empty',
focus: 'custom-name--focus',
invalid: 'custom-name--invalid',
webkitAutofill: 'custom-name--webkit-autofill',
},
},
cardNumberElementOptions: {
showIcon: true,
},
mountTargets: {
number: '[data-custom-card-number-target]',
expiry: '[data-custom-card-expiry-target]',
cvv: '[data-custom-card-cvv-target]',
},
placeholders: {
cvv: '',
expiry: '',
number: '',
},
};

const cardElements = new CreditCardElements(environment);
await cardElements.create(options);
`

These options can be updated at any time using the update method:

`js
cardElements.update(newOptions);
`

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Custom styles can be added through CSS (via default or custom class names), through a custom styles object, or a combination of both.

By default, the class names used to style credit card elements are:

`css
.olo-pay {
padding: 2.5rem 1rem;
color: darkslategrey;
}

.olo-pay--complete {
color: peachpuff;
}

.olo-pay--empty {
}

.olo-pay--focus {
}

.olo-pay--invalid {
color: tomato;
}

.olo-pay--webkit-autofill {
}
`

These classes will be added and removed as the user types into the inputs. The names can be edited by changing the cardElementOptions.classes (part of the options passed to CC elements above).

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It may be easier for your implementation to pass a style object to apply custom styling.

Supported style object properties (ElementCSSProperties below) can be applied to the four states of elements:

- base
- complete
- empty
- invalid

And for each pseudo-class and pseudo-element:

`
:hover
:focus
::placeholder
::selection
:-webkit-autofill
:disabled
::-ms-clear
`

#### Accepted Properties

`ts
interface ElementCSSProperties {
color: string;
backgroundColor: string;
fontFamily: string;
fontSize: string;
fontSmoothing: string;
fontStyle: string;
fontVariant: string;
fontWeight: string;
iconColor: string;
lineHeight: string;
letterSpacing: string;
textAlign: string;
textDecoration: string;
textShadow: string;
textTransform: string;
}
`

#### Example

`js
const styleObject = {
style: {
base: {
color: 'lightslategrey',
fontSize: '5rem',
fontFamily: 'sans-serif',
'::placeholder': {
color: 'darkslategrey',
},
},
complete: {
color: 'peachpuff',
fontFamily: 'Mr Dafoe, cursive', // Font family location was provided in the elementOptions > fonts > cssSrc above
},
invalid: {
color: 'tomato',
':hover': {
color: 'orangered',
},
},
},
};

const cardElements = new CreditCardElements({
cardElementOptions: {
style: styleObject,
},
});
`

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Individual credit card elements can be accessed after being mounted so that individual methods can be run.

Change

`ts
cardElements.cardNumber.on('change', (event) => {
if (event.complete) {
// ...
} else if (event.error) {
const message = event.error.message;
// ...
}
});
`

onChange gives us back an object:

`js
{
complete: false,
brand: 'visa',
elementType: 'card',
empty: false,
error: undefined,
value: { postalCode: "" },
}
`

While the other events are straight forward. These include:

- Ready - Triggered when the element is fully rendered and can accept element.focus calls.
- Focus - Triggered when the Element gains focus.
- Blur - Triggered when the Element loses focus.
- Escape - Triggered when the escape key is pressed within an Element.

Example:

`js
element.on('ready', (event) => {
element.focus();
});
`

The library also exposes a series of methods to interact with all the elements at once:

#### General

`js
cardElements.elements.forEach((element) => {
// ...
});
`

#### Create

Creates element iframes and mounts them to DOM targets.
Customization can be passed as an options argument.

| Parameter | Description |
| --------- | ----------------------------------------------------------------------------------------------------------------------------- |
| options | CreditCardOptions options object to influence the style of the credit card elements. If not passed in, defaults will be used. |

`js
cardElements.create(options);
`

#### Create Payment Method

Creates a single-use payment method object. A payment method will only be generated successfully if all required card data fields are valid. Billing details can be passed in as an optional billingDetails argument.

For more information on how to use the payment method when submitting a basket, refer to the documentation in our developer portal.

| Parameter | Description |
| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| billingDetails | Optional object that supplies billing details when creating a payment method object that may be used or required by particular types of payment methods. |

`js
cardElements.createPaymentMethod(); // No billing details supplied
`

`js
cardElements.createPaymentMethod({
address: {
city: 'New York',
country: 'US',
line1: '123',
line2: 'Apt. 2',
postal_code: '10006',
state: 'NY',
},
email: 'lb@olo.com',
name: 'Lucille Bluth',
phone: '+19876543210',
});
`

#### Apply styles

Applies a style object to the credit card elements.

| Parameter | Description |
| ----------- | --------------------------------------------------------------- |
| styleObject | Object that provides style to influence the inner iframe styles |

`js
cardElements.applyStyles(styleObject);
`

#### Clear

Clear all credit card field values.

`js
cardElements.clear();
`

#### Destroy

Removes the elements from the DOM and destroys them so they cannot be re-mounted.

`js
cardElements.destroy();
`

#### Unmount

Unmounts the elements from the DOM.

`js
cardElements.unmount();
`

#### Update

Updates the options the credit card elements were initialized with.
Updates are merged into the existing configuration.

`js
cardElements.update(newOptions); // New options are the same as those passed when instantiating CreditCardElements
`

Single-line Credit Card Element

Check out this example to get started.

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Import and create a new instance of SingleLineCardElement:

`ts
import { SingleLineCardElement } from '@olo/pay';

const cardElement = new SingleLineCardElement();
SingleLineCardElement.create();
`

The create method will create a new iframe and will mount it to a DOM target that is marked with a data-olo-pay-card-single-line attribute by default:

`html



The create method also takes in optional argument mountTarget which accepts a string selector or an HTML element.

`js
const options = {
mountTarget: '#custom-card-selector',
};

cardElements.create(options);
`

If the element can be found in the DOM, the iframe will be injected into its designated mount target.

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Options for customization can be passed to the SingleLineCardElement instance in several different ways at different times in the app lifecycle.

When calling the create method from a SingleLineCardElement instance, optional fields can be passed in through a SingleLineCardElementOptions object (if this is left blank, defaults will be used):

#### Object shape

`ts
interface SingleLineCardElementOptions {
cardElementOptions?: CardElementOptions;
elementsOptions?: ElementsOptions;
mountTarget?: HTMLElement | string;
}
`

#### Example

`js
import { SingleLineCardElement } from '@olo/pay';

const environment = env === 'PRODUCTION' ? 'production' : 'development';

const options: SingleLineCardElementOptions = {
elementsOptions: {
fonts: [
{
cssSrc: 'https://fonts.googleapis.com/css2?family=Mr+Dafoe&family=Pacifico',
},
],
},
cardElementOptions: {
classes: {
base: 'custom',
complete: 'custom-name--complete',
empty: 'custom-name--empty',
focus: 'custom-name--focus',
invalid: 'custom-name--invalid',
webkitAutofill: 'custom-name--webkit-autofill',
},
},
mountTarget: '[data-card-input]',
};

const cardElement = new SingleLineCardElement(environment);
await cardElement.create(options);
`

These options can be updated at any time using the update method:

`js
cardElement.update(newOptions);
`

#### Optional Fields

In the single-line card element, there are several unique fields that are applicable here that do not apply to CreditCardElements:

`js
const options: SingleLineCardElementOptions = {
...restOfOptions,
hidePostalCode: true, // Hides the postal code field. false if not provided
iconStyle: 'solid', // Changes the style of the card icon. 'default' and 'solid' are the only two valid options here. Value is set to 'default' if no value is provided.
hideIcon: true, // Hides the card icon. false if not provided
};
`

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The single-line credit card element can be accessed after being mounted so that individual methods can be run.

#### Create

Creates element iframes and mounts them to DOM targets.
Customization can be passed as an options argument.

| Parameter | Description |
| --------- | ---------------------------------------------------------------------------------------------------------------------------- |
| options | CreditCardOptions options object to influence the style of the single-line element. If not passed in, defaults will be used. |

`js
singleLineCardElement.create(options);
`

#### Create Payment Method

Creates a single-use payment method object. A payment method will only be generated successfully if all required card data fields inside the single-line element are valid. Billing details can be passed in as an optional billingDetails argument.

For more information on how to use the payment method when submitting a basket, refer to the documentation in our developer portal.

| Parameter | Description |
| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| billingDetails | Optional object that supplies billing details when creating a payment method object that may be used or required by particular types of payment methods. |

`js
singleLineCardElement.createPaymentMethod(); // No billing details supplied
`

`js
singleLineCardElement.createPaymentMethod({
address: {
city: 'New York',
country: 'US',
line1: '123',
line2: 'Apt. 2',
postal_code: '10006',
state: 'NY',
},
email: 'lb@olo.com',
name: 'Lucille Bluth',
phone: '+19876543210',
});
`

#### Apply styles

Applies a style object to the single-line element.

| Parameter | Description |
| ----------- | --------------------------------------------------------------- |
| styleObject | Object that provides style to influence the inner iframe styles |

`js
singleLineCardElement.applyStyles(styleObject);
`

#### Clear

Clear all credit card field values inside the single-line card element.

`js
singleLineCardElement.clear();
`

#### Destroy

Removes the element from the DOM and destroys them so they cannot be re-mounted.

`js
singleLineCardElement.destroy();
`

#### Unmount

Unmounts the single-line card element from the DOM.

`js
singleLineCardElement.unmount();
`

#### Update

Updates the options with which the single-line element was initialized.
Updates are merged into the existing configuration.

`js
singleLineCardElement.update(newOptions); // New options are the same as those passed when instantiating SingleLineCardElement
`

CVV Element

Check out this example to get started.

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Import and create a new instance of CvvElement:

`ts
import { CvvElement } from '@olo/pay';

const cvvElement = new CvvElement();
cvvElement.create();
`

The create method will create a new iframe and will mount it to a DOM target that is marked with a data-olo-pay-cvv attribute by default:

`html



The create method also takes in optional argument mountTarget which accepts a string selector or an HTML element.

`js
const options = {
mountTarget: '#custom-cvv-selector',
};

cvvElement.create(options);
`

If the element can be found in the DOM, the iframe will be injected into its designated mount target.

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Options for customization can be passed to the CvvElement instance in several different ways at different times in the app lifecycle.

When calling the create method from a CvvElement instance, optional fields can be passed in through a CvvOptions object (if this is left blank, defaults will be used):

#### Object shape

`ts
interface CvvOptions {
cvvElementOptions?: CvvElementOptions;
elementsOptions?: ElementsOptions;
mountTarget?: HTMLElement | string;
}
`

#### Example

`js
import { CvvElement } from '@olo/pay';

const environment = env === 'PRODUCTION' ? 'production' : 'development';

const options: CvvOptions = {
elementsOptions: {
fonts: [
{
cssSrc: 'https://fonts.googleapis.com/css2?family=Mr+Dafoe&family=Pacifico',
},
],
},
cvvElementOptions: {
classes: {
base: 'custom',
complete: 'custom-name--complete',
empty: 'custom-name--empty',
focus: 'custom-name--focus',
invalid: 'custom-name--invalid',
webkitAutofill: 'custom-name--webkit-autofill',
},
},
mountTarget: '[data-cvv-input]',
};

const cvvElement = new CvvElement(environment);
await cvvElement.create(options);

// Use this function as a callback inside your 'Revalidate CVV' button onClick
async function createCvvToken() {
const token = await cvvElement.createCvvToken();
}
`

These options can be updated at any time using the update method:

`js
cvvElement.update(newOptions);
`

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The cvv element can be accessed after being mounted so that individual methods can be run.

#### Create

Creates element iframe and mounts to DOM target.
Customization can be passed as an options argument.

| Parameter | Description |
| --------- | ------------------------------------------------------------------------------------------------------------- |
| options | CvvOptions options object to influence the style of the cvv element. If not passed in, defaults will be used. |

`js
cvvElement.create(options);
`

#### Create cvv Token

Creates a single-use token that represents a card's cvv value.

`js
cvvElement.createCvvToken();
`

Returns a token object.

`js
{
"token": {
"id": "cvctok_1Ox97yAMexQxmg",
"object": "token",
"client_ip": "1.1.1.1",
"created": 1711117886,
"livemode": false,
"type": "cvc_update",
"used": false
}
}
`

Use your basket submission API call here to send the cvv as token.id.

`js
await submitBasket({
...restOfBasketData,
paymentCard: {
...restOfPaymentCardData,
cvv: token.id,
},
});
`

#### Apply styles

Applies a style object to the cvv element.

| Parameter | Description |
| ----------- | --------------------------------------------------------------- |
| styleObject | Object that provides style to influence the inner iframe styles |

`js
cvvElement.applyStyles(styleObject);
`

#### Clear

Clears cvv element value.

`js
cvvElement.clear();
`

#### Destroy

Removes the element from the DOM and destroys it so it cannot be re-mounted.

`js
cvvElement.destroy();
`

#### Unmount

Unmounts the cvv element from the DOM.

`js
cvvElement.unmount();
`

#### Update

Updates the options with which the cvv element was initialized.
Updates are merged into the existing configuration.

`js
cvvElement.update(newOptions); // New options are the same as those passed when instantiating CvvElement
`

Digital Wallets

Digital Wallets provide Google Pay and Apple Pay support where the checkout process defers to the built-in Chrome or Safari browser checkout experience. To leverage Digital Wallets, you can use the provided button from Olo Pay or create your own custom button.

Check out this example to get started. Note: this example will only work with Google Pay in a Chrome instance where you are logged into a Chrome profile with a linked payment method defined at pay.google.com. Also, a linked personal card will _not_ be charged since this example is using development mode by default.

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In order to test Google Pay or Apple Pay buttons successfully in your development or production environment, your domain must be served over HTTPS with a valid SSL certificate. We recommend using a solution like ngrok.

In addition, for Apple Pay, your domain must also be public-facing and verified by Apple. Please refer to our "Setting up Apple Pay for Web" guide here for more information.

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The built-in DigitalWallets button will automatically check the web application’s browser and payment configuration for a valid Apple Pay or Google Pay setup. The payment button will only render in your web application in the following scenarios:

1. Safari on macOS and iOS or Chrome on iOS 16 with a valid Apple Pay configuration. See Apple's official documentation for more information for configuring Apple Pay.
2. Google Chrome on Windows, macOS, and Android with a valid Google Pay configuration.
- Configuring Google Pay in Android
- Configuring Google Pay in Chrome

To use the Digital Wallets button, import the button from Olo Pay JS and create a new instance of DigitalWallets.

`js
import { DigitalWallets } from '@olo/pay';

const options = {}; // More information below
const callback = () => {}; // More information below

const digitalWallets = new DigitalWallets();

await digitalWallets.initialize(options);

digitalWallets.mountButton(callback);
`

The mountButton method will create a new payment request button and mount it to a DOM target marked with a data-olo-pay-payment-button attribute.

`html


mountButton takes a callback function that will be executed once the user initializes payment from the browser's or device's checkout experience. It also accepts an optional second parameter of a custom selector or element to mount the button to. This will default to data-olo-pay-payment-button.

`js
async function callback(paymentMethod) {
if (paymentMethod) {
// Use your basket submission API call here to send the payment method id as token
try {
await submitBasket({
...restOfBasketData,
token: paymentMethod.id,
cardType: paymentMethod.card.brand,
cardLastFour: paymentMethod.card.last4,
});
// Signals to the Apple Pay or Google Pay payment sheet that the transaction has been processed
// successfully and that the payment sheet can be closed
digitalWallets.completePaymentEvent();
} catch (error) {
// Signals to the Apple Pay or Google Pay payment sheet that the payment has failed
digitalWallets.failPaymentEvent();
}
}
}
`

#### Digital Wallets Options

When initializing a new DigitalWallets button instance, certain options can be passed in that dictate the style of the button.

Note: it is highly recommended to set requestPayerName to true in the PaymentRequestOptions object, as this will return the billing address in the Payment Method object for Google Pay and Apple Pay. See Stripe's documentation for more information here.

`js
interface DigitalWalletsOptions {
options: PaymentRequestOptions; // See Stripe's documentation https://stripe.com/docs/js/payment_request/create#stripe_payment_request-options
style?: {
type?: 'default' | 'book' | 'buy' | 'donate', // changes button text (i.e. "Book with G Pay")
theme?: 'dark' | 'light' | 'light-outline',
height?: string, // i.e. 48px
};
}
`

`ts
import { DigitalWallets } from '@olo/pay';

const callback = () => {};

const digitalWalletsOptions = {
options: {
country: 'US',
currency: 'usd',
total: {
label: 'Pay [brand name]',
amount: 7672,
},
displayItems: [
{ label: 'Subtotal', amount: 6248 },
{ label: 'Discount', amount: -625 },
{ label: 'Delivery Charge', amount: 299 },
{
label: 'Estimated Taxes & Fees',
amount: 500,
},
{ label: 'Tip', amount: 1250 },
],
requestPayerName: true,
},
style: {
type: 'default',
theme: 'dark',
height: '48px',
},
};
const digitalWallets = new DigitalWallets();

await digitalWallets.initialize(digitalWalletsOptions);

digitalWallets.mountButton();
`

In certain scenarios, it is useful to determine if a payment through a digital wallets option (i.e. Google Pay or Apple Pay) is possible before rendering a checkout template that renders this button. You can use canMakePayment before initializing the button if this better suits your workflow.

`js
import { CreditCardElements, DigitalWallets } from '@olo/pay';
import { paymentRequestOptions } from './payment-request'; // More info below

const digitalWallets = new DigitalWallets();

const callback = () => {};

await digitalWallets.initialize(paymentRequestOptions);

if (digitalWallets.canMakePayment.googlePay || digitalWallets.canMakePayment.applePay) {
digitalWallets.mountButton(callback);

// Add logic to render your digital wallets template with button here
} else {
const cardElements = new CreditCardElements();
cardElements.create();
}
`

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Instead of using the provided DigitalWallets button, you may elect to use your own button.

Note: It is highly recommended to use the library's built-in buttons. If you do choose the custom route, be sure to comply with Apple's and Google's button UI specifications.

To use a custom button, first create a button that you plan on using to initiate the payment.

`html

Initiate Payment
`

`js
const button = document.querySelector('#digital-wallets-button');
button.addEventListener('click', digitalWallets.initiatePayment);
`

Next, instantiate DigitalWallets and call the initialize method with paymentRequestOptions. From here you can utilize digitalWallets.canMakePayment to check if you should render your button.

Wire the click event of your button to execute the initiatePayment() method to trigger the browser's or device's payment sheet for the the user to complete the payment.

Note that before rendering this button, it is important to check to see if a digital wallets payment can be made first by checking the canMakePayment boolean from your DigitalWallets instance.

`js
import { DigitalWallets, PaymentMethod } from '@olo/pay';
import { paymentRequestOptions } from './payment-request'; // More info below

const digitalWallets = new DigitalWallets();

await digitalWallets.initialize(paymentRequestOptions);

if (digitalWallets.canMakePayment.googlePay || digitalWallets.canMakePayment.applePay) {
const button = document.getElementById('digital-wallets-button');

button.style.display = 'inline';

button.on('click', () => {
// Triggers the browser's or device's payment sheet
digitalWallets.initiatePayment();
});
}
`

##### payment-request.ts

`js
const paymentRequestOptions = {
options: {
country: 'US',
currency: 'usd',
total: {
label: 'Pay [brand name]',
amount: 7672,
},
displayItems: [
{ label: 'Subtotal', amount: 6248 },
{ label: 'Discount', amount: -625 },
{ label: 'Delivery Charge', amount: 299 },
{
label: 'Estimated Taxes & Fees',
amount: 500,
},
{ label: 'Tip', amount: 1250 },
],
requestPayerName: true,
},
classes: {
base: 'custom',
complete: 'custom-name--complete',
empty: 'custom-name--empty',
focus: 'custom-name--focus',
invalid: 'custom-name--invalid',
webkitAutofill: 'custom-name--webkit-autofill',
},
};

digitalWallets.mountButton(callback);
`

TypeScript

`ts
interface DigitalWalletsOptions {
options: PaymentRequestOptions; // See Stripe's documentation https://stripe.com/docs/js/payment_request/create#stripe_payment_request-options
classes?: ElementClasses;
}
`

$3

Methods accessible from an instantiated DigitalWallets object.

`js
import { DigitalWallets } from '@olo/pay';

const digitalWallets = new DigitalWallets();
`

#### Initialize

Initializes a DigitalWallets instance by setting payment request information.

| Parameter | Description |
| --------- | --------------------------------------------------------------------------------------- |
| options | An object that contains payment request options (required) and style options (optional) |

#### Mount Button

Mounts a DigitalWallets button that will be appended to an element marked with a matching data-olo-pay-payment-button attribute.
| Parameter | Description |
| --------- | ------------------------------------------------------------------------ |
| callback | A function that will be executed once the payment process has been completed from the browser's or mobile device's built-in checkout experience |

##### Example

`html


`js
import { DigitalWallets } from '@olo/pay';
import { paymentRequestOptions } from './payment-request';

function callback(paymentMethod) {
// Process payment here
}

const digitalWallets = new DigitalWallets();

await digitalWallets.initialize(paymentRequestOptions);

// Will append Digital Wallets button to div marked with data-olo-pay-payment-button
// (or a custom selector or element passed as a second parameter)
digitalWallets.mountButton(callback);
`

#### initiatePayment

Initiates a payment by showing the Google Pay or Apple Pay payment sheet. This can be triggered when using a custom payment button, or in scenarios where preventing the default click event behavior is necessary (i.e. proper form validation prior to initiating the payment).

Example

`js
const digitalWallets = new DigitalWallets();
await digitalWallets.initialize(options);

digitalWallets.paymentButton.on('click', (event) => {
event.preventDefault();

// Launch payment sheet if form is valid
if (formIsValid) {
dw.initiatePayment();
}
});
`

#### canRenderButton

Determines which digital wallets are available in the current browser context. This function differs from invoking canMakePayment after initialization because it does not rely on a DigitalWallets instance. This is useful in situations where you need to determine whether or not to render the button, but don't have access to the payment information required in DigitalWalletsOptions.

| Parameter | Description |
| --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| country | The two-letter country code in which the payment will be processed. See a list of acceptable country codes here. If no country is provided, 'US' will be used by default. |

`js
const canRenderButton = await digitalWallets.canRenderButton();

if (!canRenderButton) {
digitalWallets.destroy();
return;
}

await digitalWallets.initialize(digitalWalletsOptions);

digitalWallets.mountButton(submitDigitalWalletsPayment);
`

#### updatePaymentDetails

Updates payment details to be reflected in the browser's payment sheet _after_ the Digital Wallets instance has already been initialized. This should be used in scenarios where your button is defined on a page where any order details (tip amount, currency, fees, taxes, delivery fee, etc.) could be changed.

Calling updatePaymentDetails with the latest options will ensure that the payment sheet accurately reflects the most up-to-date order details.

`js
digitalWallets.updatePaymentDetails({
currency: 'usd',
total: {
label: 'Pay [brand name]',
amount: 7672,
},
displayItems: [
{ label: 'Subtotal', amount: 6248 },
{ label: 'Discount', amount: -625 },
{ label: 'Delivery Charge', amount: 299 },
{
label: 'Estimated Taxes & Fees',
amount: 500,
},
{ label: 'Tip', amount: 1250 },
],
});
`

#### completePaymentEvent

Completes the pending payment event. This should be called when the ordering API has returned a successful response.

`js
async function callback(paymentMethod) {
if (paymentMethod) {
// Use your basket submission API call here to send the payment method id as token
try {
await submitBasket({
...restOfBasketData,
token: paymentMethod.id,
cardType: paymentMethod.card.brand,
cardLastFour: paymentMethod.card.last4,
});
// Signals to the Apple Pay or Google Pay payment sheet that the transaction has been processed
// successfully and that the payment sheet can be closed
digitalWallets.completePaymentEvent();
} catch (error) {
// Signals to the Apple Pay or Google Pay payment sheet that the payment has failed
digitalWallets.failPaymentEvent();
}
}
}
`

#### failPaymentEvent

Fails the pending payment event. This should be called when the ordering API has returned a failed response.

`js
async function callback(paymentMethod) {
if (paymentMethod) {
// Use your basket submission API call here to send the payment method id as token
try {
await submitBasket({
...restOfBasketData,
token: paymentMethod.id,
cardType: paymentMethod.card.brand,
cardLastFour: paymentMethod.card.last4,
});
// Signals to the Apple Pay or Google Pay payment sheet that the transaction has been processed
// successfully and that the payment sheet can be closed
digitalWallets.completePaymentEvent();
} catch (error) {
// Signals to the Apple Pay or Google Pay payment sheet that the payment has failed
digitalWallets.failPaymentEvent();
}
}
}
`

#### destroy

Removes the DigitalWallets button from the DOM and destroys it so it cannot be re-mounted.

`js
digitalWallets.destroy();
`

#### unmount

Unmounts the DigitalWallets button from the DOM.

`js
digitalWallets.unmount();
`

Handling the Payment Method

Whether using a checkout experience with CreditCardElements or DigitalWallets, the output of the library will be a Stripe Payment Method object. This object contains several pieces of data that need to be submitted through the Olo Ordering API basket submission request.

For more information about integrating the payment method with the Olo Ordering API, refer to the documentation in our developer portal.

Google Pay test cards

Google provides a test card suite that allows testing a variety of cards from different card brands. Follow the instructions here to activate Google's test card suite in Chrome.

Please note that the Google Pay button will only render if you have a real card saved to your Google Pay account even if you decide to only use test cards when testing the Google Pay integration.

Troubleshooting

$3

Prerequisites: For both Desktop and Android versions of Chrome, your domain must be served over HTTPS with a valid SSL certificate.

#### Desktop Chrome

Ensure that

1. You have a valid credit card added to your Google Pay account
2. The Google Pay account is the same one with which you are logged into Chrome
3. No browser ad-blocker browser extensions are running
4. You are using Chrome 61 or newer
5. You do not have any other tabs open with the Google Pay button
6. Your site is running securely via HTTPS

#### Chrome for Android

Ensure that

1. You have a valid card added to your Google Wallet or a saved card
2. You are using Chrome 61 or newer

$3

Prerequisites: For both Mac and iOS versions of Safari, your domain must be served over HTTPS with a valid SSL certificate. Also, make sure your domain is registered for Apple Pay by following these steps in our developer portal.

Please note, for versions of iOS 16 and newer, Apple Pay might work in some non-Safari mobile browsers with a card saved in your Wallet.

#### Safari for Mac

Ensure that

1. You are using compatible device with a real card defined in macOS Wallet. More information on Apple's support site
2. The laptop lid is open if using a device with touch ID
3. No ad-blocker browser extensions are running
4. You are using macOS Sierra or later

#### Safari for iOS

Ensure that

1. You are using iOS 10.1 or later
2. You have a valid card configured in your Wallet (Settings --> Wallet & Apple Pay)

Olo Pay JS Upgrades

| Release Date | Version | Description |
| ------------ | ------- | ------------------------------------------------------------- |
| 3/28/2024 | 2.0.0 | Breaking change: Changed all references of CVC to CVV` |