Max Cutler

<p>Uses PHP’s output buffering to buffer XML-RPC responses and strip superfluous whitespace.</p>
<p>Plugins, themes, and any other files executed during the WordPress load process can unintentionally emit whitespace,<br />
such as by including a newline character after an explicit closing “?>” PHP tag instead of letting PHP auto-close the<br />
file.</p>


XML-RPC De-whitespacer

Removes leading and trailing whitespace from XML-RPC responses that can break some XML-RPC clients.

Yann at WP&amp;Co

<h4>Implement incoming Webhooks in WordPress</h4>
<p>This plugin implements a simple gateway to transform webhook calls into regular XML-RPC calls.</p>
<p>WordPress has a very comprehensive XML-RPC API. This gateway will automatically accept webhook calls and convert them into XML-RPC.</p>
<p>It listen to Webhooks to trigger XML-RPC methods in WordPress.</p>
<p>It provides a simple short /webhook URL for triggering WordPress events.</p>
<p>From then on you can use the well-known and well-documented native WordPress XMLRPC API to respond to webhooks and implement needed features in your plugins and custom functions.</p>
<p>The incoming webhook POST data payload will be transferred as-is to the XML-RPC method. It should be XML for it to work well.</p>
<p>Needs PHP5.</p>
<h4>Webhook syntax</h4>
<p>If you are using pretty permalinks:</p>
<pre><code>http://[your-site]/webhook?method=misc.method
</code></pre>
<p>If you are not using permalinks, you need to call the long full url:</p>
<pre><code>http://[your-site]/wp-content/plugins/yd-webhook-to-xml-rpc/webhook.php?method=misc.method
</code></pre>
<p>replace <code>misc.method</code> with any XML-RPC method, either WordPress built-in, or your own, or from a third-party plugin.</p>
<h4>Uses</h4>
<p>This gateway has successfully been used to listen to Shopify webhooks to trigger WordPress events (such as upgrade user status when a purchase has been completed).</p>
<h4>Active support</h4>
<p>Drop me a line on my <a href="http://www.yann.com/en/wp-plugins/yd-webhook-to-xml-rpc" title="Yann Dubois' Webhook to XML-RPC plugin" rel="nofollow ugc">YD Webhook to XML-RPC plugin support site</a> to report bugs, ask for specific feature or improvement, or just tell me how you’re using it.</p>
<h3>Revisions</h3>
<ul>
<li>0.1.0. Initial beta release of 2011/04/29</li>
</ul>
<h3>Did you like it?</h3>
<p>Drop me a line on http://www.yann.com/en/wp-plugins/yd-webhook-to-xml-rpc</p>
<p>And… <em>please</em> rate this plugin –></p>


XML-RPC De-whitespacer vs YD Webhook to XML-RPC