The PaymentRequest() constructor creates a new PaymentRequest object which will be used to handle the process of generating, validating, and submitting a payment request.

methodData

Contains an array of identifiers for the payment methods the merchant website accepts and any associated payment method specific data. Each item in the array contains the following fields:

supportedMethods

For early implementations of the spec, this was a sequence of identifiers for payment methods that the merchant website accepts. Starting with more recent browsers, this parameter is more generic than credit cards, it is a single string, and the meaning of the data parameter changes with the supportedMethods. For example, the Example Pay payment method is selected by specifying the string https://example.com/pay here.

data

A JSON-serializable object that provides optional information that might be needed by the supported payment methods. This has to conform to the type expected by the payment handler indicated by supportedMethods. Developers need to consult whomever controls the payment methods for the expected shape of the data object.

details

Provides information about the requested transaction. This parameter contains the following fields:

total

The total amount of the payment request.

id Optional

A free-form identifier for this payment request. If a value is not supplied, the browser will construct one.

displayItems

An array of optional line items for the payment request that the user agent may display, such as product details, tax, and shipping.

shippingOptions

The shipping options the user may choose from. If this sequence is blank, it indicates the merchant cannot ship to the current shipping address. The default shipping option may be indicated in this sequence.

modifiers

Modifiers for specific payment methods; for example, adjusting the total amount based on the payment method. This parameter contains the following fields:

additionalDisplayItems

An array of items to be appended to the details.displayItems property. This property is commonly used to add a discount or surcharge line item indicating the different amount in details.modifiers.total.

data

A JSON-serializable object that provides optional information that might be needed by the supported payment methods.

total

A total amount for the payment request that overrides value in details.total. This is typically used when details.modifiers.additionalItems adds a discount or a purchase to the request.

options Optional

Lets you set options that control the behavior of the user agent. This parameter contains the following fields:

requestPayerName

A Boolean indicating whether the user agent should collect the payer's name and submit it with the payment request. The default is false.

requestPayerEmail

A Boolean indicating whether the user agent should collect the payer's email address and submit it with the payment request. The default is false.

requestPayerPhone

A Boolean indicating whether the user agent should collect the payer's phone number and submit it with the payment request. The default is false.

requestShipping

A Boolean indicating whether the user agent should collect the payer's shipping address and submit it with the payment request. If you set this type to true, you should select an appropriate shippingType. The default is false.

shippingType

Lets you specify how the user interface refers to shipping when the word 'shipping' isn't appropriate for your use case. For example, in English speaking countries you would say "pizza delivery" not "pizza shipping". Valid values are "shipping", "delivery", and "pickup". Quotation marks must be included. The default value is "shipping".

A new PaymentRequest object, configured for use as configured by the input parameters.

SecurityError DOMException

Use of this feature was blocked by a Permissions Policy.

The following example shows minimal functionality and focuses instead on showing the complete context of instantiating a PaymentRequest object.

const supportedInstruments = [
  {
    supportedMethods: "https://example.com/pay",
  },
];

const details = {
  total: { label: "Donation", amount: { currency: "USD", value: "65.00" } },
  displayItems: [
    {
      label: "Original donation amount",
      amount: { currency: "USD", value: "65.00" },
    },
  ],
  shippingOptions: [
    {
      id: "standard",
      label: "Standard shipping",
      amount: { currency: "USD", value: "0.00" },
      selected: true,
    },
  ],
};

const options = { requestShipping: true };

try {
  const request = new PaymentRequest(supportedInstruments, details, options);
  // Add event listeners here.
  // Call show() to trigger the browser's payment flow.
  request
    .show()
    .then((instrumentResponse) => {
      // Do something with the response from the UI.
    })
    .catch((err) => {
      // Do something with the error from request.show().
    });
} catch (e) {
  // Catch any other errors.
}