Controller: TrackMasterExampleController.cs

using SnapObjects.Data;
using Appeon.ApiDoc.Models.School;
using Microsoft.AspNetCore.Mvc;
using System.Linq;

namespace Appeon.ApiDoc.ISqlModelMapperExamples
{
    [Route("examples/ISqlModelMapper/TrackMaster/[action]")]
    public class TrackMasterExampleController : Controller
    {
        private readonly SchoolContext _dataContext;

        public TrackMasterExampleController(SchoolContext dataContext)
        {
            _dataContext = dataContext;
        }

        [HttpPost]
        public string Example1(IDataUnpacker dataUnpacker)
        {
            // Uses IDataUnpack to receive JSON data from the client app.
            // Gets the data of Course and OnlineCourse from the client app.
            var course = dataUnpacker.GetModelEntries<CourseAndOnlineInfo>("course")
                                    .FirstOrDefault();
            var onlineCourse =
                dataUnpacker.GetModelEntries<OnlineCourse>("onlinecourse")
                            .FirstOrDefault();

            // Saves data.
            var example =
                new TrackMasterExample(_dataContext);

            example.Example1(course, onlineCourse);

            return "SUCCESS";
        }

        [HttpPost]
        public string Example2(IDataUnpacker dataUnpacker)
        {
            // Uses IDataUnpack to receive JSON data from the client app. 

            // Gets the data of Course from the client app.
            var course = dataUnpacker.GetModelEntries<CourseAndOnlineInfo>("course")
                                    .FirstOrDefault();

            // Saves data.
            var example = new TrackMasterExample(_dataContext);

            example.Example2(course);

            return "SUCCESS";
        }
    }
}

Refer To

JSON Files: TrackMasterExample1 TrackMasterExample2