public async Task <IActionResult> Post([FromForm] string author, IFormFile file)
{
if (string.IsNullOrWhiteSpace(author))
{
throw new ArgumentException("Author cannot be empty");
}
if (file == null || file.Length == 0)
{
throw new ArgumentException("File cannot be empty");
}
if (string.IsNullOrWhiteSpace(file.FileName))
{
throw new ArgumentException("File name cannot be empty");
}
byte[] fileBytes = FileProcessor.GetFileBytes(file);
Document doc = new Document(author, file.FileName, fileBytes, DateTime.Now);
await documentProcessor.AddDocumentAsync(doc);
return(CreatedAtAction(nameof(Get),
new { author = doc.Author, additionDate = doc.AdditionDate.ToString(CultureInfo.InvariantCulture) }));
}