How to filter or search the posts using postmeta tables custom meta fields with wordpress REST API

I’m new to wordpress and also working with WP REST API for mobile application development for the wordpress website. Here I want get data’s filter & search based post meta custom fields.

I’ve tried for this example but getting all results not belongs property_featured=1

Kindly find my postmeta table structure for example.

meta id post id meta key           meta value 
---------------------------------------------
2548    1000    property_featured    
3068    1078    property_featured   1   
3619    1124    property_featured   1 

Here i want to get the post based on property_featured=1 only. Pls help to me fix on this.

You will need to add custom query vars:

add_filter('rest_query_vars', 'wpse225850_add_rest_query_vars');

function wpse225850_add_rest_query_vars($query_vars) {

    $query_vars = array_merge( $query_vars, array('meta_key', 'meta_value', 'meta_compare') );

    return $query_vars;

}

Now, get your posts at example.com/wp-json/wp/v2/posts?filter[meta_key]=property_featured&filter[meta_value]=1.

You can follow this ticket for more info.