Custom properties on media items missing in Content Delivery API response

Questions
1

Hi! I’m setting up a brand new Umbraco 13 API with the Content Delivery API enabled. My issue is that images that are selected with the media picker on a document type only returns the default properties of that image . Any additional properties (Alt Text e.g.) I add to the Image media type are ignored.

If I retrieve the image through the Media Delivery API then I do indeed get the custom properties, but I’d rather avoid doing extra calls to the API since I already have all the info except for a single property in the response from the CDA.

Am I just fetching the data incorrectly? I’ve tried using the expand parameter but that didn’t work. Or do I indeed have to make extra calls to the api to get the missing data?

Umbraco version: 13.1.0

Content Delivery API:

{
  "focalPoint": null,
  "crops": [],
  "id": "182d28bd-1d00-44f9-84d4-b5ee73d8afb1",
  "name": "Istockphoto 636475496 612X612",
  "mediaType": "Image",
  "url": "/media/xmuc0gaa/istockphoto-636475496-612x612.jpg",
  "extension": "jpg",
  "width": 612,
  "height": 408,
  "bytes": 41030,
  "properties": {}
}

Media Delivery API:

{
  "path": "/istockphoto 636475496 612x612/",
  "createDate": "2024-02-13T15:58:19.8894778",
  "updateDate": "2024-04-16T10:22:15.5563337",
  "id": "182d28bd-1d00-44f9-84d4-b5ee73d8afb1",
  "name": "Istockphoto 636475496 612X612",
  "mediaType": "Image",
  "url": "/media/xmuc0gaa/istockphoto-636475496-612x612.jpg",
  "extension": "jpg",
  "width": 612,
  "height": 408,
  "bytes": 41030,
  "properties": {
    "altText": "Adorable puppy being an extraordinarily good boy"
  },
  "focalPoint": null,
  "crops": []
}
This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/113951-custom-properties-on-media-items-missing-in-content-delivery-api-response