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[Resolved] Extracting multiple instances of audio field in REST api

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This support ticket is created 7 years, 6 months ago. There's a good chance that you are reading advice that it now obsolete.
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This topic contains 1 reply, has 2 voices.

Last updated by Nigel 7 years, 6 months ago.

Assisted by: Nigel.


I am trying to: The goal is to take advantage of the "multiple instances" option in the toolset post fields area. I selected the type as audio, this has a multiple instances allowance option selected. I would like to have multiple mp3 files attached to my posts and have them show up in the REST Api Version 2 endpoint. I can get the individual fields to show with the .mp3 file on it but I was unable to get all of the files to show in the endpoint.

I visited this URL: hidden link

I expected to see: wpcf-firstbead with an array or object - not sure how the fields are stored in toolset's "multiple instances" option.

Instead, I got: A single link to the mp3 file.

I got this in my functions.php file:

add_action('rest_api_init', 'register_custom_fields'); 

function register_custom_fields(){
      'get_callback' => 'show_fields'

function show_fields($object, $field_name, $request){
  return get_post_meta($object['id'], $field_name, true);

Thanks in advance for any help or input!



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Timezone: Europe/London (GMT+01:00)

I don't have any experience with the REST API myself, but I think I may have spotted your problem.

Types repeating fields simply adds multiple instances of the custom field to the wp_postmeta table, i.e. it creates multiple occurrences with the same meta_key.

get_post_meta takes 3 arguments, the last of which is a boolean to specify whether to return a single value, and you have this set to true. Setting it to false will return an array of all instances instead of a string of the first one.

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