wordpress - Passing Meta Array in WP-REST API -


i have been trying pass meta array post via front-end using wp-rest api no avail.

functions.php:

//add custom field rest api function filter_post_json( $data, $post, $context ) {   $social_media = get_post_custom_values( 'social_media' );    $sm = [];   if($social_media):     foreach ( $social_media $key => $value ) {       $sm[]  = $value;      }   endif;   $data->data['social_media'] = $sm;     return $data; } add_filter( 'rest_prepare_custom-post-type', 'filter_post_json', 10, 3 );   add_action('rest_api_init', 'register_custom_meta');  function register_custom_meta() {   $post_custom_fields = array(     'social_media'   );   foreach ($post_custom_fields $key) {      register_rest_field('custom-post-type', $key, array(      'schema'          => null,      'get_callback'    => 'get_meta_field',      'update_callback' => 'update_meta_field',    ));   } }   /**  * handler getting custom field data.  *  * @since 0.1.0  *  * @param array $object object response  * @param string $field_name name of field  * @param wp_rest_request $request current request  *  * @return mixed  */ function get_meta_field( $object, $field_name, $request ) {     return get_post_meta( $object[ 'id' ], $field_name ); }  /**  * handler updating custom field data.  *  * @since 0.1.0  *  * @param mixed $value value of field  * @param object $object object response  * @param string $field_name name of field  *  * @return bool|int  */ function update_meta_field( $value, $object, $field_name ) {     if ( ! $value || ! is_string( $value ) ) {         return;     }      return update_post_meta( $object->id, $field_name, strip_tags( $value ) );  }

jquery:

var sm1 = ['hi','hello'];     console.log(sm1);     var data = {         social_media: sm1      };      $.ajax({         method: "post",         url: post_submitter.root + 'wp/v2/custom',         data: data,         beforesend: function ( xhr ) {             xhr.setrequestheader( 'x-wp-nonce', post_submitter.nonce );         },         success : function( response ) {             console.log( response );             alert( post_submitter.success );         },         fail : function( response ) {             console.log( response );             alert( post_submitter.failure );         }

this json output when try insert post:

{   "id": 120,   "date": "2017-04-07t09:48:39",   "date_gmt": "2017-04-07t08:48:39",   "author": 1,   "featured_media": 0,   "menu_order": 0,   "template": "",   "format": "standard",   "social_media": [],   } }

json output when view post (for brevity have kept short):

[ { "id": 116, "date": "2017-04-07t09:43:53", "date_gmt": "2017-04-07t08:43:53", "social_media": [ "facebook", "instagram" ] }]


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