public async Task <ICollection <PostFile> > GetPostImages(AttachmentData attachments, string postId)
        {
            var fileList = new List <PostFile>();

            var arrayOfImages = attachments.Subattachments?.Data ?? new List <SubAttachmentData>();

            if (arrayOfImages.Count == 0)
            {
                var mainImage = attachments.Media?.Image;
                if (mainImage != null)
                {
                    arrayOfImages.Add(new SubAttachmentData
                    {
                        Media = new Media
                        {
                            Image = mainImage
                        }
                    });
                }
            }
            foreach (var image in arrayOfImages)
            {
                var info = await GetFileInfo(image, postId);

                if (info != null)
                {
                    fileList.Add(FileMapper.ConvertToPostFile(info));
                }
            }
            return(fileList);
        }
        public async Task <ICollection <PostFile> > GetPostImages(IList <SharepointPostImages> attachments, int postId)
        {
            var fileList = new List <PostFile>();

            foreach (var image in attachments)
            {
                var info = await GetFileInfo(image, postId);

                fileList.Add(FileMapper.ConvertToPostFile(info));
            }
            return(fileList);
        }