[HttpPost("with-journals")] //api/lesson/with-journals public async Task <ActionResult <int?> > AddLessonWithJournals([FromBody] LessonInputModel inputModel) { if (inputModel == null) { return(BadRequest("Model is empty")); } Lesson dataModel = LessonMapper.ToDataModel(inputModel); if (dataModel == null) { return(BadRequest("Failed to add an object")); } return(Ok(await lessonStorage.AddJournals(dataModel))); }