An application programming interface (API) specifies how some software components should interact with each other. In addition to accessing databases or computer hardware, such as hard disk drives or video cards, an API can be used to ease the work of programming graphical user interface components. ...

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32
votes
2answers
13k views

Difference Between Filter and Action Hooks?

I have been looking at the plugin API a bit more in depth recently and I was wondering what real differences there were between action and filter hooks. They both are events that receive data as a ...
29
votes
8answers
27k views

How do you create a “virtual” page in WordPress

I'm trying to create a custom API endpoint in WordPress, and I need to redirect requests to a virtual page in the root of WordPress to an actual page that ships with my plug-in. So basically, all ...
21
votes
4answers
17k views

Programmatically add a Navigation menu and menu items

Through API functions, I want to define a new Navigation menu, select it in the current theme, and then insert a few Pages as menu items. This is to be done for instance on a theme activation. ...
14
votes
1answer
920 views

How to create an API for my plugin?

I have been developing plugins for WordPress, most plugins I have developed use two or three classes, hence not as huge as Buddypress or WooCommerce. I am planning to develop two open source plugins ...
14
votes
1answer
2k views

Using the Rewrite API to Construct a RESTful URL

I'm trying to generate rewrite rules for a RESTful API. I just want to see if there is a better way to make this work than having to write out every possible rewrite combination. Ok so I have 4 ...
13
votes
2answers
2k views

How to pass variable to add_settings_section() callback?

I am attempting to automate, as much as possible, the Settings API function calls for each setting in a Plugin. Looping through the options array, and outputting add_settings_section() and ...
13
votes
2answers
685 views

New WP_Customize API - how does it work under the hood?

I noticed that if you make changes trough the new "customize" feature, when you navigate on a different page within the iframe preview document, your changes still apply, even if they are unsaved. It ...
12
votes
2answers
3k views

How to store username and password to API in wordpress option DB?

I'm currently developing a plugin and the chances are that I will more than likely release it on the public plugin repository so others can use it. The plugin will be using an API and to use this API ...
11
votes
3answers
741 views

Wordpress API Menu/Submenu Order

I'm developing a child-theme using Wordpress 3.4.2 and the development version of the Options Framework by David Price. This is my first theme and I'm relatively new to this, so I've had a look into ...
10
votes
3answers
5k views

Access WordPress API Outside of WordPress (command-line PHP)

I have a PHP script that I need to run as a cron job. However this script needs access to the WP API (get_pages(), get_post_meta() and get_permalink() specifically). I've followed the instructions ...
10
votes
2answers
301 views

Which of my blog and personal data is being transfered when Wordpress automatically checks for updates?

I'm generally concerned about privacy and I've heard that with each contact to the Wordpress API for update checks and similar a lot of my blogs data is being transfered. To get a better impression, ...
10
votes
1answer
1k views

How to use “Add link” pop up for a WordPress widget

In the WYSIWYG editor of WordPress you get pop up if you want to add a link for a text. Is there a possibility to access this functionality? Because I want to use this pop up for a WordPress widget ...
9
votes
5answers
3k views

Does Wordpress have a “Form API”

I do most of my development in Drupal, however I am working on a Wordpress site and I need to make a form. Which got me thinking, is there a Form API for wordpress like there is Drupal? Is there a way ...
8
votes
4answers
19k views

How can you check if you are in a particular page in the WP Admin section? For example how can I check if I am in the Users > Your Profile page?

I'm building a plugin and I want to add bits of javascript in the admin head but only for certain admin pages. I don't mean pages as in a WordPress page that you create yourself but rather existing ...
8
votes
1answer
9k views

Create API for single sign-on with 3rd party site

My site needs to integrate with a 3rd party software, which will live on its own sub-domain, hosted by the software company. I need to provide the 3rd party developers with an endpoint that they can ...
8
votes
1answer
3k views

Best way to programmatically remove a category/term from a post

I am working on a script to convert all posts in a given category to use a postmeta flag instead (testing of MySQL has shown me that on a site as large as mine this will lead to a meaningful decrease ...
8
votes
1answer
769 views

Is it Possible to Extend WP Customize JS Methods?

I’m wondering if it’s possible to extend the methods of the anonymous api object in wp-admin/js/customize-control.js. I need to overwrite one of these methods with my own custom logic but I suspect ...
7
votes
4answers
5k views

WP function/filter for modifying http headers?

Is there a dedicated WP function, action or filter to use when adding/modifying the HTTP headers? For now I just hook a PHP header() call into the WP 'init' hook like this: add_action('init', '...
7
votes
4answers
2k views

Is there a JavaScript API? How to access public and private data in JS?

According to this post there is no built-in JavaScript API for Wordpress. Therefore developers who want to build on AJAX seem to come up all with their own solution which doesn't seem right to me. ...
7
votes
1answer
176 views

Is there a limit on making calls to WordPress.org API's?

I am writing a plugin which makes calls to https://api.wordpress.org/plugins/info/1.0/{slug}.json Is there a limit on making calls to WordPress.org API's? For example once per hour or every 10 ...
6
votes
2answers
601 views

WordPress.org API - Get plugin authors favorite plugins

There have been some recent additions to the WordPress.org plugin repository. Most notably the changes to the plugin page and the author profile page which now shows an authors favorite plugins. I ...
6
votes
0answers
489 views

WP/WooCommerce REST API cart/checkout/order [closed]

Since the WordPress Rest API is getting merged into core and WooCommerce extended their API as well I stared to wonder how it would be possible to build an entire eCommerce website with it. When you ...
5
votes
2answers
455 views

Passing a hardcoded page/post ID into `get_post`

I see people using this to pull in page content on their home pages, remove specific categories from archives etc.. e.g. $post = get_post( 5 ); Someone suggested this was bad practice. Why is it ...
5
votes
2answers
3k views

What WordPress API function lists active/inactive plugins?

After seeing thousands of useful API functions in the WordPress core, I'm surprised to discover today that there ain't a function that would list the active plug-ins. I don't know you but I'm quite ...
5
votes
2answers
283 views

Using filters and actions for plugin API?

I want to integrate a public API to a plugin that I develop. The usual way other plugins integrate APIs is to define some functions that can be called by any theme or plugin. However, I think this ...
5
votes
1answer
3k views

WordPress JSON output

Update: I've changed the code as following $cats = get_categories(); $output = array('categories' => array()); function collect_posts(){ $args = array( 'numberposts=' => 9999, 'category' =&...
5
votes
1answer
253 views

how to authenticate for the REST API from a plugin and from command line

I want to try the new REST API but I'm not used to this kind of things. Basically, I want to use it to GET custom posts via ajax and show on the website frontend (I'm building an ajax product ...
5
votes
3answers
8k views

What is the best way to get directory path for wp-config.php?

I am developer of the plugin mapsmarker.com which also offers several APIs which can be accessed directly (eg www.mapsmarker.com/wp-content/plugins/leaflet-maps-marker/leaflet-geojson.php?marker=1) ...
5
votes
1answer
5k views

[Plugin WPML] : How to create a translation of a post using the WPML API?

I'm trying to figure out how to create a translation for a post using the internal WPML API (inc/wpml-api.php) I simply want to create a translation for post ID xx, set some content and publish it. ...
5
votes
2answers
1k views

How to use WP_Error $data argument?

The Call $error = new WP_Error( $code, $message, $data ); The Output Say I added three messages (msg A, msg B, msg C) to the code my_code and with the last message I added "Data" as $data, which ...
5
votes
1answer
1k views

Query WP REST API v2 by multiple meta keys

Using v2 of the REST API, I'm wanting to query some posts by multiple meta keys. With v1 I was able to format the url like &filter[meta_value][month]=12&[meta_value][year]=2015 and it worked (...
5
votes
1answer
230 views

WordPress and multithreading

I'm working on a plugin. I've created an API that reads and writes to a custom table in the DB. This API can be called potentially from N clients simultaneously (and it really happens). I noticed that ...
4
votes
2answers
2k views

I Want to Get A Plugin Version Number Dynamically

Howdy, I recently cribbed W3TC to implement an "in-update" changelist display (very cool), in my plugin, but there's an awkward bit of code I'd prefer to avoid. If you look at the top of this file, ...
4
votes
2answers
254 views

External WordPress API

I'd like to manipulate a WordPress website from another program/website. IS there an API already written that provides access, and authentication, to do this? Ideally, I'll be using a multi-site ...
3
votes
2answers
995 views

Use an attachment in multiple posts

I have an attachment in a post and I want to attach it to another post without detaching it from the first post, using the WP API.
3
votes
2answers
297 views

List Table API - Safe to use?

Just curious what developers think about extending the WP_List_Table class for use on plug-ins. I am working on a plug-in that will show a list of users (ID, name, email) then pull data from another ...
3
votes
2answers
3k views

How should I use register_setting, add_settings_section, & add_settings_field in my plugin's options page?

I'm working on a settings section for my plugin, and after reading over Wordpress's documentation which is in ROGUH DRAFT status, and also the Creating Options Pages - which is also in "transition", I'...
3
votes
1answer
2k views

API integration with WordPress

I'm trying to integrate a 3rd party API with WordPress. I fear this is above my head. I was this code but I'm not exactly sure how to make is work in WordPress. Is it possible? $ch = curl_init(); ...
3
votes
3answers
762 views

Convert output of nav_menu items into a tree-like multidimensional array

Is there any way to grab the nav menu items as a multidimensional array instead of a flat array? By a tree-like structure I mean something that would preserve relationship between child and parent ...
3
votes
2answers
1k views

Theme Options page with tabs

I have a theme that I'm developing from an HTML template I have. I'm also designing an options page along with a plethora of plugins built-into the theme itself. I've chosen a tabbed interface and I'm ...
3
votes
1answer
969 views

Retrieving pages with multiple tags using REST API

I'm having some difficulty understanding syntax to make a call from my application to the wordpress REST API when it it comes to getting pages that contain multiple tags. I have no problem with doing ...
3
votes
2answers
2k views

Trying to get custom post meta through Jetpack JSON API [closed]

I'm using the Jetpack for Wordpress to produce a JSON API for my Events custom post type, which works fine: https://public-api.wordpress.com/rest/v1/sites/MYSITE/posts/?type=events&number=100 ...
3
votes
1answer
362 views

Sync posts from one WordPress site to another

I want to achieve the following - I have 2 WordPress sites hosted on different servers. Let's call A as sender site and B as receiver site. Whenever I add/update/delete any post in A, it should be ...
3
votes
1answer
462 views

Authentication/API Questions

We are trying to use S2Member to manage our WP site and memberships for a Flash program that we are launching. We'd like to use S2Member to authenticate the user when they login and remain logged in. ...
3
votes
1answer
763 views

How to use REST API over CURL with authentication?

I am trying to use the WordPress Rest Api with authentication to get more data from the API. I have installed the Oauth plugin, rest-api plugin, and gotten API credentials from WP-CLI. I have ...
3
votes
0answers
33 views

WP Customizer - Prevent live preview

How do I prevent a widget being updated in the customizer preview if a widget field fails a JS validation check? More generally, is there any actual documentation for the customizer JS API? (I mean ...
3
votes
0answers
121 views

Implementing the wp json-rest api

I have a client that wants to use the wp json-rest api to allow third-party sites to push custom posts (in this case property listings) up to our site. I've been looking at using the wp json-rest api,...
3
votes
1answer
305 views

Is it possible to enqueue the Youtube API script or does it have to be inline?

The code below is the main part of a function in my functions.php which returns a div and script which ultimately output a youtube API iframe to the template where the code had been called from. At ...
3
votes
0answers
141 views

permalinks with get variables

I'm trying to create my own permalinks with wordpress rewrite API. I have been registering my get variables as it follows add_filter( 'query_vars','driver_vars' ); function driver_vars( $vars ) { ...
3
votes
1answer
112 views

Ask user permission when activating a plugin

Is there a specific Wordpress API way to ask the user's permission for something when activating a plugin? Due to the Wordpress plugin directory policy I have to ask the users consent for the ...