</h2>

<pre class="idl">

[SecureContext, Exposed=Window]

[Default] object toJSON();

readonly attribute DOMString requestId;

Promise&lt;void&gt; complete(optional PaymentComplete result = "unknown");

Promise&lt;void&gt; retry(PaymentValidationErrors errorFields);

};

</pre>

<p class="note">

</li>

</ol>

</section>

<section>

<h2>

Internal Slots

<th>

Dispatched when…

</th>

</tr>

<tr>

<td>

<td>

The user provides a new shipping address.

</td>

</tr>

<tr>

<td>

<td>

The user chooses a new shipping option.

</td>

</tr>

<tr>

<td>

<li>If <var>event</var>.<a>[[\waitForUpdate]]</a> is true, then <a>

throw</a> an "<a>InvalidStateError</a>" <a>DOMException</a>.

</li>

</li>

<li>Assert: <var>request</var> is an instance of

<a>PaymentRequest</a>.

<a>Queue a task</a> on the <a>user interaction task source</a> to

run the following steps:

<ol>

</li>

</li>

<li data-link-for="PaymentMethodChangeEvent">

<a>Fire an event</a> named "<a>paymentmethodchange</a>" at

with an event name of <var>name</var>:

</p>

<ol class="algorithm">

</li>

</li>

<li>Let <var>event</var> be the result of <a data-cite=

</li>

<li>Initialize <var>event</var>'s <code><a data-cite=

"!DOM#dom-event-type">type</a></code> attribute to <var>name</var>.

</li>

</ol>

</section>

<section>

<h2>

User accepts the payment request algorithm