WordPress: Example of REST API route with schema type of array

rest-api-route-array-schema.php

<?php

register_rest_route( 'test', '/v1/schema-test', array(
	'methods' => 'POST',
	'callback' => __NAMESPACE__ . '\handle_endpoint',
	'args' => array(
		'mybools' => array(
			'required' => true,
			'type' => 'array', // We require an array of items.
			'items' => array(
				'type' => 'boolean', // The items must be all boolean values.
				),
			)
		),
	)
);

If you do a POST with mybools=true,1,0 or mybools[]=true&mybools[]=1&mybools[]=0it will perform the boolean schema check on all of the items.