Add Advanced Custom Fields Fields to the WP REST API

functions.php

function wp_api_encode_acf($data,$post,$context){
	$data['meta'] = array_merge($data['meta'],get_fields($post['ID']));
	return $data;
}

if( function_exists('get_fields') ){
	add_filter('json_prepare_post', 'wp_api_encode_acf', 10, 3);
}

@mehmoodak thnx for your solution. Do you have any suggestion to specify only which ACF fields do you want to retrieve or not ?

great contribution @rileypaulsen! thanks. it works

Thanks @mehmoodak !

Thank you so much @mehmoodak !