How to authenticate custom API endpoint in WooCommerce [closed]

When working with the API recently I found if the authentication header with the consumer key as the username and the consumer secret as the password is present and valid this sets the current user global as the matched user.

I found the core executes the REST route until current_user_can is called, at which point if the header was missing or invalid the current user ID is 0 and as ‘current user cant’, this prevents the request from further processing.

Looking at your solution, $user need not be defined as it is unused by the WC_API_Authentication::authenticate() method.

If this fixed your code, it would suggest you haven’t registered a REST route (/wp-json/wc/v1/my-route) and have defined a custom handling of the request yourself.

You may wish to look at the ‘woocommerce_api_endpoints’ filter instead.