public async Task <MimeFile> AddCertificate(CertificateEntity data)
{
var existing = cache.Get <MimeFile>(data.RowKey);
if (existing != null)
{
throw new DuplicateTableRowException();
}
logger.LogInformation("Storing certificate " + data.RowKey);
await tableStore.InsertRow(TABLE_NAME, data);
var pdf = RenderCertificate(data);
return(pdf);
}