{
  // [Required]
  "album_id": 9996319,
  // [Required] A caption for the photo.
  "title": "something something danger zone",
  // [Required] Necessary if connected_user_id is omitted.
  "email": "dennis@pixleeteam.com",
  // The username for the person who is posting this photo.
  "username": "Dennis",
  // [Required]
  "photo_uri": "https://example.com/picture.jpg",
  // [Optional] Optional content type parameter you may use if the photo_uri doesn't have an extension.
  // Allowed values are: "image/gif", "image/jpeg", "image/jpg", "image/png", "image/webp",
  // "video/mp4", "video/quicktime", "video/x-msvideo", "video/x-ms-wmv", "video/x-flv", "video/3gpp".
  "content_type": "image/jpg",
  // [Optional]
  "avatar_url": "https://example.com/user-avatar.jpg",
  // [Required]
  "approved": true,
  // [Optional] Not used if email is included.
  "connected_user_id": 123456789,
  // [Optional] Associates this photo with an ID you own. Usually a user ID.
  "vendor_id": "your_own_identifier",
  // [Optional] For adding product tags.
  "product_skus": ["productA", "productB"],
  // [Optional] Used to copy the content to category albums (case-sensitive).
  "category_names": ["Clothing", "Shoes"],
  // [Optional] For storing additional misc info.
  "connected_user": { "shirt_size": "M" }
}