Dominate

<h3>About the app</h3>
Our checkout suite includes everything you need to increase conversions and drop abandonment rates – yet it installs in just minutes and is completely free. If you ever decide you don’t want to use it anymore, uninstall it with just a single click.
With a single page for your entire checkout process, shoppers will have no problem becoming customers when they visit your WooCommerce website. Our checkout suite will give you all the tools to give them a completely frictionless checkout experience.
We understand your business is completely unique, which is why we made our checkout suite so it’s 100% customizable. Create the perfect checkout page for your specific website. Easily make adjustments over time to increase your conversion rate even further. No matter what kind of checkout page you build for your site, this extension’s completely responsive, so it will always display at the correct size.
Powered by PayPal Commerce, your customized checkout page will give you access to more than 280 million customers around the world and 100+ different currencies. You’ll also enjoy peace-of-mind knowing you’re benefiting from PayPal’s advanced Fraud Protection.
One simple page. One powerful extension. Start increasing conversions today.
<h3>App Features</h3>
Easy as 1-2-3 to Install and Customize 
Dominate Checkout solution is as powerful as it is easy to set up – no developer required! It only takes a few clicks to install and start converting more shoppers into customers. Effortlessly maintain your brand image across your entire conversion funnel with our user-friendly customization tools and give your consumers a seamless checkout experience.
Lightning Fast & Highly Scalable 
When it comes to your checkout page, speed is essential. Slow checkout pages mean high abandonment rates. WooCommerce’s checkout is focused on many aspects of your site, while Dominate Checkout Suite is solely focused on just your customer’s checkout journey – making it blazing fast and reliable!
Mobile Optimization Initiative 
IWD Agency partnered with Hi-Conversion, through the PayPal MOI initiative, to run countless A/B tests on mobile optimization. We then utilized the results when optimizing Checkout Suite for mobile users. Merchants that use our Checkout Suite see their conversion rates lift by 7.12% on average!

Dominate Checkout Suite (Open-Source)

svrooij

Since wordpress version 4.9.? wordpress includes the functionality provided by this plugin in the core of wordpress.
Checkout https://developer.wordpress.org/rest-api/using-the-rest-api/global-parameters/#_fields for functionality included in the wordpress core, 
they made it even better by filtering the amount of data pulled from the database.
This plugin will no longer be maintained since it has been superseded by the core functionality.
The <a href="https://wordpress.org/plugins/rest-api/" rel="ugc">wp-rest-api-v2</a> returns a lot of properties. 
It could be very useful (or mobile-data-friendly) to only return the properties needed by the application.
If you only want titles and links of some articles it doesn’t make sense to return the content or the excerpt.
This isn’t limited to posts, it also works on custom posttypes, categories, pages, terms, taxonomies and comments.
Instead of returning:
<pre><code>{
 "id": 2138,
 "date": "2015-10-25T15:31:03",
 "guid": {
 "rendered": "http://worldofict.nl/?p=2138"
 },
 "modified": "2015-10-25T15:31:03",
 "modified_gmt": "2015-10-25T14:31:03",
 "slug": "rechtenvrije-fotos",
 "type": "post",
 "link": "http://worldofict.nl/tip/2138-rechtenvrije-fotos/",
 "title": {
 "rendered": "Rechtenvrije foto’s"
 },
 "content": {
 "rendered": ".. A lot of content .. "
 },
 "excerpt": {
 "rendered": " .. A lot of content ..."
 },
 "author": 2,
 "featured_image": 2139,
 "comment_status": "open",
 "ping_status": "open",
 "sticky": false,
 "format": "standard",
 //.. even more tags ....
}
</code></pre>
It can return (with <code>fields=id,title.rendered,link</code> as GET parameter)
<pre><code>{
 "id": 2138,
 "link": "http://worldofict.nl/tip/2138-rechtenvrije-fotos/",
 "title": {
 "rendered": "Rechtenvrije foto’s"
 }
}
</code></pre>
<h4>Notes</h4>
<ol>
<li>If you specify fields so it wouldn’t return data the default response is send back to the client.</li>
<li>(for developers) something wrong with this plugin? <a href="https://github.com/svrooij/rest-api-filter-fields/" rel="nofollow ugc">Github</a></li>
<li>If you liked the plugin <a href="https://github.com/sponsors/svrooij" rel="nofollow ugc">consider sponsoring me</a></li>
</ol>

REST API – Filter Fields

This is hands-down the best REST API extension available.

Best REST API plugin

Filter the properties returned by the Wordpress rest api V2 (only needed until wordpress 4.9)

Dominate Checkout Suite (Open-Source) vs REST API – Filter Fields