w3specialists.com

Enhances your store’s REST API by adding powerful, flexible endpoints. 
Stay tuned more are coming!
Add or Remove a Single Category
Easily append or remove one category at a time—by numeric ID or human-friendly slug—using simple POST/PUT/PATCH or DELETE requests to 
 /wp-json/wc/v3/products/{product_id}/categories/{identifier}
Batch Manage Multiple Categories
In a single call, add or remove multiple categories at once via JSON payloads to 
 /wp-json/wc/v3/products/{product_id}/categories 
Supply an array of IDs or slugs under the “categories” key to update your product’s category list in bulk.
Automatic Slug Resolution 
Pass slugs like “summer-collection” and the plugin will resolve them to the correct WooCommerce term IDs on the fly—no extra lookups required.
Non-Destructive Updates 
Neither endpoint touches other product data. Categories are merged or pruned transparently without overwriting prices, stock, attributes, or any other fields.
Built-In Validation & Security
Sanitization of all inputs (IDs and slugs) to guard against bad data.
Permission checks ensure only users with the edit_products capability (Shop Manager, Admin) can modify categories.
Clear, standardized error codes (w3s_api_extension_invalid_product and w3s_api_extension_invalid_product_category) for consistent API responses.
W3S API Extension for WooCommerce installs alongside the core WooCommerce REST API, requires no additional configuration, and works out of the box.
<h3>Endpoints Documentation</h3>
Product Categories
<ul>
<li>
 Add a single category
<ul>
<li>Type: HTTP request</li>
<li>Endpoint: `/wp-json/wc/v3/products/{product_id}/categories/{identifier}`</li>
<li>Methods: POST, PUT, PATCH</li>
<li>Examples: 
 curl -X PUT https://example.com/wp-json/wc/v3/products/125/categories/18 \ 
 -u consumer_key:consumer_secret 
 curl -X PUT https://example.com/wp-json/wc/v3/products/125/categories/my-category \ 
 -u consumer_key:consumer_secret
 </li>
</ul>
</li>
<li>
 Remove a single category
<ul>
<li>Type: HTTP request</li>
<li>Endpoint: `/wp-json/wc/v3/products/{product_id}/categories/{identifier}`</li>
<li>Methods: DELETE</li>
<li>Examples: 
 curl -X DELETE https://example.com/wp-json/wc/v3/products/125/categories/18 \ 
 -u consumer_key:consumer_secret 
 curl -X DELETE https://example.com/wp-json/wc/v3/products/125/categories/my-category \ 
 -u consumer_key:consumer_secret
 </li>
</ul>
</li>
<li>
 Batch add categories
<ul>
<li>Type: HTTP request</li>
<li>Endpoint: `/wp-json/wc/v3/products/{product_id}/categories`</li>
<li>Methods: POST, PUT, PATCH</li>
<li>Example: 
 curl -X PUT https://example.com/wp-json/wc/v3/products/125/categories \ 
 -u consumer_key:consumer_secret \ 
 -H “Content-Type: application/json” \ 
 -d ‘{“categories”: [1,”my-category”,3,”my-category-1″]}’
 </li>
</ul>
</li>
<li>
 Batch delete categories
<ul>
<li>Type: HTTP request</li>
<li>Endpoint: `/wp-json/wc/v3/products/{product_id}/categories`</li>
<li>Methods: DELETE</li>
<li>Example: 
 curl -X DELETE https://example.com/wp-json/wc/v3/products/125/categories \ 
 -u consumer_key:consumer_secret \ 
 -H “Content-Type: application/json” \ 
 -d ‘{“categories”: [1,”my-category”,3,”my-category-1″]}’
 </li>
</ul>
</li>
</ul>
Extra notes
<ul>
<li> The single category endpoint doesn’t allow slug with characters anything other than latin & numbers [a-z0-9] </li>
<li> Strings that include only numbers will be parsed as IDs and not as Slugs</li>
</ul>

W3S API Extension for Woocommerce

Enhances your store’s REST API by adding powerful, flexible endpoints. Stay tuned more Endpoints are coming!

Sébastien Dumont

Wysija

<blockquote>
<h4>Minimum Requirements</h4>
<a href="https://wordpress.org/plugins/wysija-newsletters/" rel="ugc">MailPoet 2</a> 
 <a href="https://wordpress.org/plugins/woocommerce/" rel="ugc">WooCommerce v3.0.0 or higher</a> 
 <a href="https://wordpress.org/download/" rel="ugc">WordPress v4.7 or higher</a>
</blockquote>
This integration connects your WooCommerce store with MailPoet 2 so your customers can subscribe to your newsletters as they checkout with their purchase.
<h4>Features</h4>
<ul>
<li>If you have more than one newsletter list, customers can select which list to subscribe to when making a purchase.</li>
<li>Double Opt-in.</li>
<li>Decide if the checkbox/s to subscribe is checked or un-checked.</li>
<li>Place the subscription fields on the checkout page where you want them to be.</li>
<li>Custom checkbox label.</li>
</ul>
<h4>Translation Support</h4>
MailPoet Checkout Subscription for WooCommerce (Legacy) is in need of translations. Is the plugin not translated in your language or do you spot errors with the current translations? Helping out is easy! Click on “<a href="https://translate.wordpress.org/projects/wp-plugins/mailpoet-woocommerce-add-on" rel="nofollow ugc">Translate MailPoet Checkout Subscription for WooCommerce (Legacy)</a>” on the side of this page.
<h4>Support</h4>
This plugin will no longer be supported or maintained. I suggest you upgrade <a href="https://sebastiendumont.com/product-category/mailpoet/" rel="nofollow ugc">MailPoet Checkout Subscription for WooCommerce</a> to receive continued support. <a href="https://wordpress.org/plugins/mailpoet/" rel="ugc">MailPoet 3</a> will be required. All previous settings will be carried over.
<blockquote>
<h4>Additional Features</h4>
<ul>
<li>Manage subscription from account dashboard.</li>
<li>Subscription notice added to order email if customers subscribed.</li>
</ul>
</blockquote>
<a href="http://eepurl.com/c0hQe9" rel="nofollow ugc">Sign up</a> to be notified of release.
More information
<ul>
<li>Other <a href="https://profiles.wordpress.org/sebd86/" rel="nofollow ugc">WordPress plugins</a> by <a href="https://sebastiendumont.com" rel="nofollow ugc">Sébastien Dumont</a></li>
<li>Contact Sébastien on Twitter: <a href="http://twitter.com/sebd86" rel="nofollow ugc">@sebd86</a></li>
</ul>

MailPoet Checkout Subscription for WooCommerce (Legacy)

Very useful

Unfortunately it doesn't yet work with WooCommerce 3.1
Did some further checks and it works perfectly with WooCommerce 3.1 as well.
Great plugin, does what it promises! Thanks for this!

Works with WooCommerce 3.1 as well

Let your customers subscribe to your newsletters as they checkout with their purchase.

W3S API Extension for Woocommerce vs MailPoet Checkout Subscription for WooCommerce (Legacy)