Woocommerce API - add additional images - woocommerce

Question

I am trying to add another image to a product using the Woocommerce API.
However, the API overwrites the existing image(s). I have tried with no ID, no title, unique ID, etc.
Is there a way to have it append a new image, not touching the existing image?
{"images": [
{
"title": "temp1",
"position": 3,
"src": "https://www.example.com/myimage.jpg"
}]}
Turns out that you can use an existing image if you use the internal post ID of the image as the ID tag:
{ "images":
[ { "id" : 587 } ]
}
This will overwrite the existing image.
So, if I can figure out a way to get all the image ids of the product, I can re-add them all and append the new image onto the end...
see: WooCommerce API creates images in media even if they exist

Answer 1

So I couldn't figure out how to stop woocommerce from overwriting all the images when I wanted to add one, so I wrote code that appends a new image onto the list of images.
//GET CURRENT IMAGE IDs FOR A PRODUCT AND BUILD JSON OF THEM
$product_id = '652';
$product = new WC_product($product_id);
$attachment_ids = $product->get_gallery_image_ids();
array_unshift($attachment_ids, get_post_thumbnail_id($product_id));
//BUILD JSON OF EXISTING IMAGE IDS
foreach( $attachment_ids as $attachment_id ) {
$json_images .= '{"id":' . $attachment_id . '}';
$json_images .= ($i<count($attachment_ids) ? ',' : '');
}
echo "<br>" . $json_images;
//POST AN IMAGE TO AN AUCTION
$host = 'https://beta.blohbloh.com/wp-json/wc/v3/products/' . $product_id;
$consumer_key='ck_2364';
$consumer_secret='cs_12ce';
//NEEDS TO INCLUDE ALL PREVIOUS IMAGE IDS IN JSON FORMAT
$payload = '{"images": [';
$payload .= $json_images;
$payload .= '{"src":';
//sample image to append
$payload .= '"https://somesite.com/someimage.jpg"';
$payload .= '}]}';
$process = curl_init($host);
curl_setopt($process, CURLOPT_HTTPHEADER, array('Content-Type: application/json', $additionalHeaders));
curl_setopt($process, CURLOPT_HEADER, 1);
curl_setopt($process, CURLOPT_USERPWD, $consumer_key . ":" . $consumer_secret);
curl_setopt($process, CURLOPT_TIMEOUT, 30);
//curl_setopt($process, CURLOPT_POST, 1);
//curl_setopt($process, CURLOPT_POSTFIELDS, $payload);
curl_setopt($process, CURLOPT_CUSTOMREQUEST, "PUT");
curl_setopt($process, CURLOPT_POSTFIELDS,$payload);
curl_setopt($process, CURLOPT_RETURNTRANSFER, TRUE);
$return = curl_exec($process);
curl_close($process);