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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!

Subodh Ghulaxe

This plugin adds .html extension to pages in WordPress. Adding .html extension on posts is easy as it can be updated from permalinks, but by default it is not possible on pages.
Useful in following cases:
<ul>
<li>You want to convert your static site to WordPress but don’t want to change .html extension in URLs.</li>
<li>Want to append .html extension to end of all page in WordPress.</li>
<li>You already added .html to post URLs and want to keep similar URL structure.</li>
</ul>

Add .html Extension to Pages

Working perfectly with WordPress 5.7

A simple and easy way to add .html extension to WordPress pages.

W3S API Extension for Woocommerce vs Add .html Extension to Pages