Native ACF JSON API

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  • Jonathan Wold

  • September 5, 2013 at 5:20 am

  I went searching for a way to access the content of a repeater field via JSON and turned up this thread on the old support forum: http://old.support.advancedcustomfields.com/discussion/4418/native-acf-json-api/p1

  I’d like to resurrect it and add that, 1. I would find that functionality highly valuable and 2) It would definitely be worth paying for as a premium add-on.
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  • Elliot

  • September 5, 2013 at 12:41 pm

  Hi @sirjonathan

  Looks like the simplest answer was hooking in and adding the custom fields like so:

  
  add_filter('json_api_encode', 'json_api_encode_acf');
   
  function json_api_encode_acf($response) 
  {
      if (isset($response['posts'])) {
          foreach ($response['posts'] as $post) {
              json_api_add_acf($post); // Add specs to each post
          }
      } 
      else if (isset($response['post'])) {
          json_api_add_acf($response['post']); // Add a specs property
      }
   
      return $response;
  }
   
  function json_api_add_acf(&$post) 
  {
      $post->acf = get_fields($post->id);
  }
  

  http://wordpress.org/extend/plugins/json-api/other_notes/#Filter:-json_api_encode http://stackoverflow.com/questions/10132685/json-api-to-show-advanced-custom-fields-wordpress

  The code is so small that I could not charge for it. Maybe you could package it up into a WP plugin?

  Thanks
  E
• 

  • heartbox

  • April 10, 2014 at 7:28 pm

  I just added a little variation to retrieve fields from the Option Page. I added the code in this StackOverflow answer http://stackoverflow.com/a/22983903/2011287
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  • tecknoman

  • May 6, 2014 at 11:09 am

  Where i use this code? And, how to return the latitude for example? Thanks
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  • MagnusN

  • December 17, 2015 at 4:12 am

  Hi Elliot,
  code works fine, since now I get the structure out.
  I’ve come across a weird issue with the output though.
  Here is a snippet from the “custom field” part of the JSON output:

  “custom_fields”: {
  “gallerythumb”: [
  “a:3:{i:0;s:2:\”90\”;i:1;s:2:\”92\”;i:2;s:2:\”91\”;}”
  ],

  Tried to get the IDs out (“90”, “92”, “91”) so I can store it in an array to which I can reference the different “attachments”, since the urls don’t come with the “custom_fields”.

  Can you spot what the issue is with the output? or does anyone else have a solution for this? Would love to hear some thoughts on this! 🙂