How do you get Posts by multiple meta_keys and meta_values with the Rest API V2?

Question

You can hook into the rest api query and add your args from url’s parameters

The code will look something like:

 function query_post_by_fields($args, $request) {
   $url_params = $request->get_param;
   //Modify $args with your url params
   return $args;
}  
add_filter('rest_post_query', 'query_post_by_fields', 10, 2);

Docs:

https://developer.wordpress.org/reference/hooks/rest_this-post_type_query/