woocommerce_api_(api_request) │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_api_(api_request)', 'wp_kama_woocommerce_api_request_action' );

/**
 * Function for `woocommerce_api_(api_request)` action-hook.
 * 
 * @return void
 */
function wp_kama_woocommerce_api_request_action(){

	// action...
}

Where the hook is called

do_action( 'woocommerce_api_' . $api_request );

Where the hook is used in WooCommerce

add_action( 'woocommerce_api_wc_gateway_paypal', array( $this, 'check_response' ) );