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The method of the PaymentRequest interface causes the user agent to begin the user interaction for the payment request.

    .then( paymentResponse => { ... })
    .catch( error => { ... })


A Promise to a PaymentResponse object. The promise is resolved when the user accepts the payment request.




Exception Description
AbortError Promise rejects with an AbortError if the user agent's "payment request is showing" boolean is true; i.e. another payment has already been shown for this request.
InvalidStateError Promise rejects with an InvalidStateError if the same payment has already been shown for this request (its state is interactive because it is being shown already).
NotSupportedError Promise rejects with a NotSupportedError if the user agent does not support the payment methods included in the constructor call.
SecurityError Promise rejects with a SecurityError if the user agent disallows the method call for some reason (e.g. too many show() calls have been made in a short amount of time, or it doesn't allow show() calls that aren't initiated by a user action).


In the following example, a PaymentRequest object is instantiated before the show() method is called. This method triggers the user agent's built-in process for retrieving payment information from the user. The show() method returns a Promise that resolves to a PaymentResponse object when the user interaction is complete. The developer then uses the information in the PaymentResponse object to format and send payment data to the server. You should send the payment information to the server asynchronously so that the final call to paymentResponse.complete() can indicate the success or failure of the payment.

// Initialization of PaymentRequest arguments are excerpted for the sake of
//   brevity.

var payment = new PaymentRequest(supportedInstruments, details, options); {
  // Process paymentResponse here, including sending payment to the server.
  // paymentResponse.methodName contains the selected payment method
  // paymentResponse.details contains a payment method specific response
}).catch(function(err) {
  console.error("Uh oh, something bad happened", err.message);


Specification Status Comment
Payment Request API
The definition of 'show()' in that specification.
Working Draft Initial definition.

Browser Compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support


(Yes) No support[1] ? ? ?
Feature Android Android Webview Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 53.0 (Yes) No support[1] ? ? ? 53.0

[1] Supported since 55 but disabled on all versions. Hidden behind the dom.payments.request.enabled pref.

See Also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, libbymc, Eeems, dgashmdn, jpmedley
 Last updated by: chrisdavidmills,