public bool SaveImageVariantData(string variantName, string Uri, int assetId)
{
try
{
AssetVariant assetVariant = new AssetVariant();
assetVariant.AssetId = assetId;
assetVariant.AssetVariantName = variantName;
assetVariant.BlobStoragePath = Uri;
_DbContext.AssetVariants.Add(assetVariant);
_DbContext.SaveChanges();
return(true);
}
catch (Exception ex)
{
return(false);
}
}
public async Task <ActionResult <Asset> > PostAsset([FromQuery] int folderId, IFormFile file)
{
var storageConnectionString = _configuration["ConnectionStrings:AzureStorageConnectionString"];
var visionKey = _configuration["VISION_KEY"];
var visionEndpoint = _configuration["VISION_ENDPOINT"];
string originalFileName = file.FileName;
string ext = Path.GetExtension(originalFileName);
string fileName = "asset_" + Guid.NewGuid().ToString() + ext;
var storage = new StorageClient(storageConnectionString);
var visionWorker = new VisionWorker(visionKey, visionEndpoint);
using var stream = file.OpenReadStream();
// store the file in azure blob storage
var blobClient = await storage.StoreFile("assets", fileName, stream, file.ContentType);
// generate metadata and thumbnail
await visionWorker.Run(blobClient.Uri.ToString());
// store metadata
await storage.StoreMetadata(blobClient, visionWorker.Metadata);
// store thumbnail
var thumbnailBlobClient = await storage.StoreFile("thumbs", fileName, visionWorker.ThumbnailStream, "image/png");
// create the new Asset
Asset asset = new Asset
{
FileName = fileName,
DisplayName = visionWorker.Description,
FolderId = folderId,
PreviewUrl = thumbnailBlobClient.Uri.ToString()
};
var originalVariant = new AssetVariant {
AssetId = asset.AssetId, Url = blobClient.Uri.ToString(), VariantTypeId = 1
};
var thumbnailVariant = new AssetVariant {
AssetId = asset.AssetId, Url = thumbnailBlobClient.Uri.ToString(), VariantTypeId = 2
};
asset.AssetVariants.Add(originalVariant);
asset.AssetVariants.Add(thumbnailVariant);
_context.Asset.Add(asset);
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateException)
{
if (AssetExists(asset.AssetId))
{
return(Conflict());
}
else
{
throw;
}
}
return(CreatedAtAction("GetAsset", new { id = asset.AssetId }, asset));
}
