title: WooCommerce REST API - Get Custom Fields for Order
body: <p>I'm using the WooCommerce REST API (<a href="http://woocommerce.github.io/woocommerce-rest-api-docs/#introduction" rel="nofollow noreferrer">http://woocommerce.github.io/woocommerce-rest-api-docs/#introduction</a>) and are able to download Customers, Orders etc successfully. </p>
  
  <p>My customer has added some custom fields to the checkout page, e.g.:</p>
  
  <pre><code>po_number
  accounts_email
  </code></pre>
  
  <p>I would like to be able to GET these custom fields when requesting an ORDER, e.g.:</p>
  
  <pre><code>/wp-json/wc/v1/orders/4568
  </code></pre>
  
  <p>At the moment none of the custom fields are returned when I GET an Order. I've tried adding</p>
  
  <pre><code>?filter[meta]=true
  </code></pre>
  
  <p>to the request URL but that doesn't make any difference. Is there a way I can modify the GET URL to include all custom fields? Couldn't find any reference in the REST API docs to custom fields.</p>