Kentico image API - Need to return image URL instead of Guid in ASP.NET Web API

Question

This is my first question on stackoverflow, so please excuse me if title or question is not good.

At the moment I got VoucherResponse class

  public class VoucherResponse
{
    public int VoucherID { get; set; }
    public string VoucherTitle { get; set; }
    public IEnumerable<VoucherVariant> VoucherVariants { get; set; }
    public string[] VoucherImages { get; set; }
}

And Web api method

 return Ok(from v in distinctby
                     select new VoucherResponse
                     {
                         VoucherID = v.VoucherID,
                         VoucherTitle = v.VoucherTitle,
                         VoucherVariants = (from voucher in voucherToLookup[v.VoucherID]
                                            select new VoucherVariant 
                                            {
                                                VoucherDiscountedPrice = voucher.VoucherPrice  - (voucher.VoucherPrice * voucher.VoucherDiscount/ 100),
                                                VoucherVariantId = voucher.VoucherVariantId,
                                                VoucherPrice = voucher.VoucherPrice,
                                                VoucherStock = 1

                                            }),
                         VoucherImages = (from image in distinctby
                                          where v.VoucherID == image.VoucherID
                                          select image.VoucherImages

                                          // URLHelper.GetAbsoluteUrl(ModuleCommands.MediaLibraryGetMediaFileUrl(image.FileGUID, voucher.NodeAlias + "_" + image.ImageOrder))).ToArray(),
                                          ).ToArray()
                     });

At the moment I am getting results

{
"voucherID": 380,
"voucherTitle": "Woolworths e-Gift Card",
"voucherVariants": [
  {
    "voucherVariantId": 397,
    "voucherPrice": 100,
    "voucherDiscountedPrice": 95,
    "voucherStock": 1
  },
  {
    "voucherVariantId": 389,
    "voucherPrice": 200,
    "voucherDiscountedPrice": 190,
    "voucherStock": 1
  },
  {
    "voucherVariantId": 393,
    "voucherPrice": 300,
    "voucherDiscountedPrice": 285,
    "voucherStock": 1
  },
  {
    "voucherVariantId": 394,
    "voucherPrice": 400,
    "voucherDiscountedPrice": 380,
    "voucherStock": 1
  },
  {
    "voucherVariantId": 395,
    "voucherPrice": 500,
    "voucherDiscountedPrice": 475,
    "voucherStock": 1
  }
],
"voucherImages": [
  " B4A3A070-3ED1-4086-8B33-21465AA58C7A, 2FB01963-2D71-4C79-9EE8-38A114CAF1A6"
]

I need to return voucherImages like this

    "VoucherImages" : [
{"www.kentico.info/imageOne.jpg"}
{"www.kentico.info/imageTwo.jpg"}
]

Answer 1

First of all thanks for trying to help me. I resolved this problem by myself. @rocky images are stored in media library, I created method that seams to be working but I still getting "ugly url" like "http://localhost:50848/getmedia/8f5f2e87-782c-4ee2-b6c0-dba614588fe4/ I would like to get something like "http://localhost:50848/getmedia/image1.jpg But will do research on this, if anyone need the code in the feature i will paste method below

  private string[] GetImageURLs(string guids, string voucherTitle)
    {
        List<string> result = new List<string>();
        string[] guid = guids.Split(',');
        string alias, url,image;

        foreach (var item in guid)
        {
            url = ModuleCommands.MediaLibraryGetMediaFileUrl(ValidationHelper.GetGuid(item, Guid.Empty), SiteContext.CurrentSiteName);
            image = URLHelper.GetAbsoluteUrl(url);
            result.Add(image);
        }

        return result.ToArray();
    }