public async Task <string> UploadAvatar(IFormFile file, bool isPreview)
{
if (file != null && file.Length <= 3 * 1024 * 1024 && file.ContentType.Contains("image"))
{
using (var memoryStream = new MemoryStream())
{
await file.CopyToAsync(memoryStream);
byte[] image = memoryStream.ToArray();
return(await _personalDataService.AddAvatarAsync(_userManager.GetCurrentUserId(), isPreview, image));
}
}
return(null);
}