Native ACF JSON API

• 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.

• 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

• tecknoman

• May 6, 2014 at 11:09 am

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

• 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! 🙂