This plugin enables caching for the WordPress REST API to improve performance. Once enabled you can modify the basic settings via the Customizer.

Brandon Hubbard

Hubbard Labs

This plugin enables caching for the WordPress REST API to improve performance. Once enabled you can modify the basic settings via the Customizer.
<h4>Customizer Options:</h4>
<ul>
<li>Disable Cache (Default: Disabled)</li>
<li>Set Default Cache Timeout (Default: 300)</li>
</ul>
<h3>Request Headers</h3>
Several Headers are added to all the API Requests. This plugin will also modify the Cache-Control header as well. Here is an example of the available custom headers.
<pre>X-API-CACHE-PRO: Cached
X-API-CACHE-PRO-EXPIRES: January 20, 2019, 12:39 AM UTC
X-API-CACHE-PRO-EXPIRES-DIFF: 5 mins
X-API-CACHE-PRO-KEY: api_cache_pro_78be25416f69cd3a885dcf14017a0691</pre>
<ul>
<li>X-API-CACHE-PRO – Displays Cached, or Not Cached.</li>
<li>X-API-CACHE-PRO-EXPIRES – Displays the date/time the cache is set to expire.</li>
<li>X-API-CACHE-PRO-EXPIRES-DIFF – Displays the difference from current time to the time cache is set to expire.</li>
<li>X-API-CACHE-PRO-KEY – Displays the key used for the cache.</li>
</ul>
This plugin offers several filters so you can disable these headers:
 Filter 
 Type 
 Default
 <code>api_cache_pro_header</code> 
 boolean 
 true
 <code>api_cache_pro_key_header</code> 
 boolean 
 true
 <code>api_cache_pro_expires_header</code> 
 boolean 
 true
 <code>api_cache_pro_expires_diff_header</code> 
 boolean 
 true
 <code>api_cache_pro_control_header</code> 
 boolean 
 true
 <code>api_cache_pro_max_age</code> 
 integer 
 Default Timeout or 300 (5 Minutes)
 <code>api_cache_pro_s_max_age</code> 
 integer 
 Default Timeout or 300 (5 Minutes)
You can use these filters to disable any of the headers. Here is an example to disable the Key Header.
<pre>/**
 * Disable API Cache Pro Key Header.
 *
 * @access public
 */
function disable_api_cache_pro_key_header() {
 return false;
}
add_action( 'api_cache_pro_key_header', 'disable_api_cache_pro_key_header' );
</pre>
<h3>Clearing Cache</h3>
The cache will automatically get cleared if you do any of the following:
<ul>
<li>Disable the Cache</li>
<li>Update the Default Cache Timeout Length</li>
<li>Update any post, page or custom post type.</li>
<li>Deactivate or Uninstall the plugin</li>
</ul>
You can skip that cache by adding the following param to any request:
<pre><code>`cache=disabled<pre><h3>WP-CLI Support</h3>
</code></pre>
API Cache Pro offers wp-cli support to clear cache with the following command:
wp api-cache-pro delete 
 `

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