public async Task <IActionResult> GetXml(
[FromHeader] Guid personUniqueId,
[FromQuery] string documentUniqueId,
[FromServices] DocumentsManager manager)
{
var xml = await manager.GenerateXmlAsync(User.Identity.Name, documentUniqueId);
var base64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(xml.Data));
return(Json(ApiResponse.Success(base64)));
}