public __BizAuthModel Register([FromBody] __BizAuthModel authInfo)
 {
     if (ModelState.IsValid)
     {
         //... do whatever
     }
     throw new HttpResponseException(HttpStatusCode.BadRequest);
 }
 public __BizAuthModel Login([FromBody] __BizAuthModel authInfo)
 {
     if (ModelState.IsValid)
     {
         //... do whatever
     }
     throw new HttpResponseException(HttpStatusCode.Forbidden);
 }