public async Task <IActionResult> CreateQuestionAndSendEmail([FromBody] ValidateQuestionCmd validateQuestionCmd)
{
QuestionWriteContext ctx = new QuestionWriteContext(new EFList <Post>(_dbContext.Post));
var dependencies = new QuestionDependencies();
var expr = from validateQuestionResult in QuestionDomain.ValidateQuestion(validateQuestionCmd)
let post = validateQuestionResult.SafeCast <QuestionValidated>().Select(p => p.Post)
select new { validateQuestionResult };
var r = await _interpreter.Interpret(expr, ctx, dependencies);
_dbContext.SaveChanges();
return(r.validateQuestionResult.Match(
created => (IActionResult)Ok(created.Post.PostId),
notCreated => StatusCode(StatusCodes.Status500InternalServerError, "Question could not be created."),
invalidRequest => BadRequest("Invalid request.")));
}