How the REST API and Calypso Will Force Change in WordPress

This year has undeniably been a big year for WordPress. From the good (the REST API being merged into core), the bad (the REST API being merged into core, if you’re scared of JavaScript) to the ugly (#wpdrama, anyone?), it’s been a year when WordPress seems to have puffed out its chest and finally started the process of maturing into an application platform.

The next year is set to be even bigger. The REST API will start to bed down and get more widespread usage, new tools for advanced development are coming on board (such as WP_CLI, which lets you interact with REST via the command line), and Calypso is likely to migrate from and Jetpack to self-hosted WordPress sites.

So what does this all mean for WordPress users and developers? It means a lot. The REST API, in particular, and the Calypso interface that makes use of it, will introduce WordPress to a new audience of developers who don’t work with PHP and users who’ve been put off by WordPress’, frankly, confusing interface.

So, what will this look like in detail? Let’s pull out the crystal ball and take a look…

The User Interface Will Improve

If you haven’t given Calypso a try yet, I recommend taking a look at it. While it doesn’t yet affect most of us who have self-hosted WordPress sites, it represents the biggest change to the admin interface since WordPress was launched more than 11 years ago. It’s been implemented in and in the Jetpack plugin, so if you’re running a self-hosted site with Jetpack installed, you’ll be able to use the new Calypso interface.

It’s worth mentioning that Calypso isn’t an alternative interface for your existing WordPress admin screens: it’s a completely separate application that interacts with your site using the REST API. To use it, you need to install and activate the desktop app or log in to and manage your self-hosted site from there. In both cases, you’ll need Jetpack installed and the Manage option activated.

Calypso’s features include:

  • A more intuitive interface, with less clutter (although the structure is essentially unchanged)
  • Much faster editing and publishing
  • Publish and edit posts and pages
  • Manage comments
  • Create and edit menus
  • Install themes and plugins
  • Edit site settings

The one thing you can’t do from the app is customize your theme. If you click on the Customize button you’ll be taken to the Customizer in your browser.

I have to admit, it feels a bit odd editing my site remotely but it’s no different from using the mobile WordPress apps in that regard, which many of us are used to.

The most significant improvement, however, is in speed. WordPress can be slow to implement changes made in the admin screens and the app makes this much quicker.

Calypso is very new and it’s safe to predict that it will go through significant review and UX improvements over the next year, as well as influencing other similar projects that make use of its open source codebase.

Calypso offers a single interface to manage all or Jetpack-enabled sites.
Calypso offers a single interface to manage all or Jetpack-enabled sites.

It Will be Easier to Publish to WordPress Using a Bespoke Interface

One of the big battles in the time that WordPress has been in existence has been between publicly available CMSes like WordPress, Drupal, Joomla and other commercial systems; and bespoke CMSes designed specifically for a given project.

The debate has been steadily moving away from bespoke CMSes and many of us who do client work will have experiences of helping clients migrate to WordPress from a bespoke CMS. This might be because it no longer meets their needs or is no longer supported because the agency that built it for them is has either ceased trading or the client doesn’t want to work with them anymore.

The beauty of WordPress is that it has a huge community of users, a vast library of online support and learning resources (including this blog), and that it ain’t going anywhere. Site owners choosing WordPress will be less isolated than those using a bespoke CMS and have less risk of problems further down the line.

But there are still plenty of organizations (including corporations and news agencies) that choose to have a custom CMS built for them that meets their needs exactly. It means they can develop an interface that fits with their workflow and makes them more efficient.

This could change in the future. The Calypso interface is just that: an interface that interacts with WordPress using the REST API. There’s nothing to stop anyone from building their own bespoke interface, which would look nothing like WordPress but would interact with data stored by WordPress.

This opens up opportunities not only for agencies building CMSes for clients but also for website builders such as our own edublogs and the happy tables restaurant website builder, which use a customized version of the WordPress admin. The happy tables team are involved in the REST project and I wouldn’t be at all surprised if it switched to a standalone interface using the REST API during 2016.

PHP Developers Will Have to Get Familiar with JavaScript

In Matt Mullenweg’s State of the Word address to WordCamp US on December 6 he made one thing very clear: the future is JavaScript:

“I believe quite strongly that JavaScript and API-driven interfaces are the future of not just WordPress but the web.”

As the possibilities offered by the REST API become more apparent, more WordPress developers will need to add JavaScript (specifically JSON) to their skill set.

This will enable them to create themes entirely built using front-end languages instead of PHP, with potentially significant performance gains.

To my mind, the REST API is a bit like quantum physics. As Richard Feynman famously said:

“If you think you understand quantum mechanics, you don’t understand quantum mechanics.”


“If you think you understand what the REST API means for WordPress, you don’t understand the REST API.”

In my view, we haven’t yet done much more than scratch the surface of how this new way of interacting with WordPress could change WordPress and how it’s used. So far people have been using it to develop themes built with frontend languages instead of PHP (see A Day of REST for an example) and a few mobile apps (showcased at WordCamp US). But it has much more potential than that. It means that just about any application could interact with WordPress in the future. From smartphone apps and admin interfaces to stock management systems and smart fridges, the possibilities are almost endless. Who knows, maybe a WordPress-powered app will help get human beings to Mars one day??

This means that developers working at the cutting edge of WordPress development, the people pushing the limits of what can be done with the platform, will need to learn a whole new skill-set in order to do it.

A New Community of Developers Will Start Working with WordPress

I’ve already predicted (as has Matt, I don’t claim credit here) that WordPress developers will need to become familiar with JavaScript. But there’s more to it than that: JavaScript and other front-end developers will come into the WordPress fold and start building applications that interact with the WordPress APIs. It’s those people, not constrained by experience of being in the WordPress bubble, who I believe will come up with the most innovative ways of using the REST API.

We'l be welcoming a new community of JavaScript developers.
We’l be welcoming a new community of JavaScript developers.

There are plenty of agencies now with separate teams of front-end and backend developers, and it’s normally the backend devs who are doing the bespoke WordPress work. This will change. As well as many of these backend devs starting to work with front-end languages more, front-end devs will be brought in to create applications and interfaces that interact with WordPress.

It’ll be more than just adding interactions and effects on top of the underlying PHP of a WordPress site: it’ll be interacting with WordPress in much more fundamental ways to create completely new types of site and application.

But these developers will have to develop some familiarity with PHP: as Matt said in his State of the Word address, PHP isn’t going anywhere. It will still be the language on which WordPress’s foundations – its APIs – are built.

This will all have an impact on the WordPress community…

The WordPress Community Will Have to Adapt

This year hasn’t been an easy year for WordPress in some respects, or at least it hasn’t always been easy for the community.

The #wpdrama episode over the summer stirred strong emotions on both sides of a debate that was about copyright as well as the power held by Matt Mullenweg and Automattic over other parts of the WordPress community and individuals within it. At the time it felt like something could be starting that would seriously damage the community in the long run, but then it all blew over and we’ve gone back to being the same merry band we always were, happily sharing ideas, experiences and code with each other.

But the influx of all these non-WordPress people, people who are drawn in by the new possibilities and the ability to use their skills with WordPress, will change the community to some extent.

This doesn’t necessarily mean the community’s ethos or essential nature will change, but it does mean that it will be made up of different people, some of whom won’t have the longstanding loyalty to (or stubborn adherence to, depending on how you see it) the way WordPress has done things for so many years.

There will be people coming in from enterprise backgrounds who find it difficult to adjust to the way open source communities work, and there will be existing members of the community who find it hard to get used to having front-end coders and app developers in their midst.

But I believe that the community is resilient and will adapt and grow with the new skills and outlooks from which it will be able to benefit. WordPress has already evolved from a blogging platform into a CMS, which brought significantly more people into the community, especially people doing client work. We’ve all gained from this and we can all benefit from the changes in store.

But It’s Not All About the REST API

However, not everything in store for WordPress in 2016 is related to the WordPress API. There are other changes and improvements in store which will expand WordPress’s audience and make it more accessible to users in different parts of the world, users with disabilities and people using different devices.

1. Translation

The biggest of these is the ongoing drive for translation. The polyglots team has been working hard to ensure that WordPress is translated into as many languages as possible and with each release this grows. Over 2016 the team will continuing to translate the biggest themes and plugins, making it easier for WordPress’s global community to interact with them. That can only be a good thing.

2. Accessibility

The accessibility of the admin interface is also improving, with over 200 accessibility-related tickets addressed in version 4.4. JavaScript-driven interfaces like Calypso will give developers more scope to create interfaces that work for users with sensory impairments, with the option to turn specific accessibility features on and off using JavaScript.

3. Responsive Images

WordPress is also firmly embracing the shift towards mobile web use with the adoption of true responsive images in release 4.4. This means that on small screens, not only will images look smaller in your WordPress site, they’ll actually be smaller. All without you lifting a finger. This is a great example of WordPress developers working hand in hand with the web standards community (who, let’s face it, were a little sniffy about WordPress a few years back) to make WordPress a modern platform.

4. The Customizer

The Customizer also isn’t going anywhere. For users this means more as-live editing of your site’s settings, widgets, menus and more, with the possibility of admin pages being replaced by their sections in the Customizer.

For theme developers this means you need to start incorporating the Customizer in your themes and replace existing theme options screens with customizer sections. This will be challenging for developers of some of the more complex themes, but is clearly where WordPress is going. There may also be possibilities to create bespoke versions of the Customizer using JavaScript-driven interfaces, which is great news for drag-and-drop theme builders.

Wrapping Up

Every year we like to look back on the previous year for WordPress and anticipate what’c coming in the next 12 months, but it feels different this year. I believe that WordPress is on the cusp of some huge changes, which will affect its codebase, its user base, its interface and its community. Exciting times!

What are your predictions for WordPress in 2016? Let us know in the comments below.

10 Responses

  • Site Builder, Child of Zeus

    I’m excited to see where WordPress goes, it started out as just a blogging platform, folks said it wasn’t very good at that, then it became number one, it moved on to become a CMS, folks said it’s not a real CMS, then it started winning awards as the best CMS. Now it has set it’s sight on becoming a full blown web application platform and the critics are already talking.

    I believe they’ll prove the haters wrong again.

  • m33
    Site Builder, Child of Zeus

    I heard about the beta version of the REST API about a year ago. From that moment on, I ditched trying to learn php and focused 100% of my efforts on JS and AngularJs. While I do have to have to have help for some php functionality, I do not regret it in the slightest.

    In that year, I built a fully bespoke SPA admin panel for wp using purley angular and vanilla JS I learned a ton – most importantly how important REST and JS is going to be from here on out.

    Big fan of where this is going.

  • Site Builder, Child of Zeus

    I really enjoy all of the WPMUDEV blogs and The Whip! I follow them and read most everyone. But, it can be overwhelming to someone like me who is just trying to make a simple website. I’m using upfront to create my sight. It’s not as easy as I would have liked it to be, but that’s my problem because I want it to be my way. You guys have been tremendously helpful in that regard in helping me do that.
    The purpose of this comment is to say, I think it’s great that so many things are happening with WordPress. I wish I was more advanced in understanding. I may have been wrong to cling to a theme. But I really like Upfront for the most part.
    So, how about some encouraging news about Upfront? Does it, in any way, tie into all this hype about WordPress, Rest API, Calypso or will I eventually be left stranded on a desert island when all of this takes place? It’s happened to me before (GoLive!, iWeb, (I loved iWeb, it was so friendly). How about a blog that describes, simply (I mean “simply”) how we who are using Upfront can still carry on…with confidence? I feel like I’m on shaky ground.

    • The Crimson Coder

      We’ll have some news about Upfront in the New Year so stay tuned! Our devs are working their bums off for version 1.0. We’re also looking at what we can do on the blog to help users like yourself make the most of what Upfront can do. Thanks for your patience!

      If you need any help, you can always ask away in the forums. And don’t worry, Upfront won’t leave you stranded, we’ll make sure of that! It’s our biggest product with a full team of developers so it’s not going away anytime soon!

    • Hi Terry,

      I’m not an expert on Upfront but my advice would be not to worry. WordPress will still continue to be built on PHP under the hood and so as well as new JavaScript-driven interfaces for it, there will still be the ability to interface with it using the familiar methods. Upfront is a great way of building your own custom site without having to write code and it’s not going away. I’m sure the changes will help our devs to make it even better in future, so don’t worry!

  • The Incredible Code Injector

    A very interesting read. I’m still ( relatively ) new to WordPress. I’ve been working with it for about 3 years total, but that includes using to create a simple site for information about my wedding, it wasn’t really the plan at that stage to learn to be an implementer / developer and quite my job to build websites for people full time ( ! )

    Interestingly, I went differently from @m33, I started learning some JS after I’d got myself up-skilled on HTML and CSS, but once I’d got the hang of the basics I started learning PHP and have spent most of my time there since. Even if this proves to be less the case later, I don’t regret this, as I think there will always be a need for understanding of how it works “under the hood”. I still dabble in JS / jQuery, so shouldn’t find it too difficult to switch my focus if required.

    There is something here I’m not quite clear on, however, and that is, why is it that more sites / developers will be using javascript specifically to do things like build admin screens using the REST API? In this post – – there was an example outlining how to pull information from a WordPress site to another using HTTP calls in PHP. Surely with this functionality, you can already create separate, alternative admin pages, and pass information to a client in the normal way – ? What am I missing?


  • New Recruit

    I’m kind of equal parts PHP ad JS, so I’m really happy either way. I definitely like where are the JS frameworks are heading and brushing up more on those. However, I think PHP is still going to remain extremely relevant. The latest episode on ShopTalk with 2 Google guys, reiterate the fact that combining the foundational code of the site server side, then adding to it client side is still looking like the best choice. Devices are probably not going to get exponential speed gains anytime real soon so leveraging the server side code can still be very powerful. Obviously this can include ruby, node etc.

Comments are closed.