Thumbnails missing from JSON response

Same problem here since a few days..

Hi there;

I have the same problem here.

Installed plugins :
– advanced-custom-fields
– simple-local-avatars
– remove-category-url
– json-api
– categories-images

Any clue ?

you ever find a solution? Recently installed Offload S3 Lite to move my images to S3, and that appears to be blowing out thumbnail info on this plugin. Disabling Offload and it works great.

I’ve had the same problem and figured it out now.

The issue is that the JSON API plugin checks to see if a thumbnail file exists locally before it adds it to the JSON response. If it doesn’t exist it just omits it.

The problem is locating in json-api/models/attachment.php in the query_images function at line 48.

You’ll need to change this

 function query_images() {
    $sizes = array('thumbnail', 'medium', 'large', 'full');
    if (function_exists('get_intermediate_image_sizes')) {
      $sizes = array_merge(array('full'), get_intermediate_image_sizes());
    }
    $this->images = array();
    $home = get_bloginfo('url');
    foreach ($sizes as $size) {
      list($url, $width, $height) = wp_get_attachment_image_src($this->id, $size);
      $filename = ABSPATH . substr($url, strlen($home) + 1);
      if (file_exists($filename)) {
        list($measured_width, $measured_height) = getimagesize($filename);
        if ($measured_width == $width &&
            $measured_height == $height) {
          $this->images[$size] = (object) array(
            'url' => $url,
            'width' => $width,
            'height' => $height
          );
        }
      }
    }
  }

To this

 function query_images() {
    $sizes = array('thumbnail', 'medium', 'large', 'full');
    if (function_exists('get_intermediate_image_sizes')) {
      $sizes = array_merge(array('full'), get_intermediate_image_sizes());
    }
    $this->images = array();
    $home = get_bloginfo('url');
    foreach ($sizes as $size) {
      list($url, $width, $height) = wp_get_attachment_image_src($this->id, $size);
      $this->images[$size] = (object) array(
            'url' => $url,
            'width' => $width,
            'height' => $height
          );
    }
  }

And that will force the JSON api to return the S3 url and not bother checking if it exists locally