How to implement coin jar in c# using Rest API?

Question

Hi Team

 

I need some help with my requirement to implement coin jar in c# using rest api. My requirement are as below;

 

"coin jar only accept latest us coinage, must have volume of 42 fluids ounces"

"must have a counter to keep track of the total amount of money collected"

"reset the count back to $0.00."

 

My logic so far is as follows in c# using rest api

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace CoinJarAPI.Controllers
{
    public class CoinJarController : ApiController
    {
        // GET: api/CoinJar
        public IEnumerable<string> Get()
        {
            return new string[] { "value1", "value2" };
        }

        // GET: api/CoinJar/5
        public string Get(int id)
        {
            return "value";
        }

        // POST: api/CoinJar
        public void Post([FromBody]string value)
        {
        }

        // PUT: api/CoinJar/5
        public void Put(int id, [FromBody]string value)
        {
        }

        // DELETE: api/CoinJar/5
        public void Delete(int id)
        {
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CoinJarAPI.Interface
{
    interface ICoinJar
    {
        void AddCoin(ICoin coin);
        decimal GetTotalAmount();
        void Reset();
    }

    public interface ICoin
    {
        decimal Amount { get; set; }
        decimal Volume { get; set; }
    }
}

using CoinJarAPI.Interface;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace CoinJarAPI.Repository
{
    public class Repository : ICoinJar
    {
        public void AddCoin(ICoin coin)
        {
            throw new NotImplementedException();
        }

        public decimal GetTotalAmount()
        {
            throw new NotImplementedException();
        }

        public void Reset()
        {
            throw new NotImplementedException();
        }
    }
}