//[BadRequestFilter]
//[Authorize]
public async Task <IHttpActionResult> Create([FromBody, CustomizeValidator(RuleSet = "default")] Course course)
{
var user = this.User as ClaimsPrincipal;
//user.FindFirst("preferred_username").Value;
if (course == null)
{
return(BadRequest());
}
var result = await _courseService.AddAsync(course);
return(result.IsError ? BadRequest(result.Message) : (IHttpActionResult)Ok(result.Data));
}