OrderCouponsController.cs

// --------------------------------------------------------------------------------------------------------------------
// <copyright file="OrderCouponsController.cs" company="Sitecore Corporation">
//   Copyright (c) Sitecore Corporation 1999-2017
// </copyright>
// <summary>
//   Defines the OrderCouponsController controller.
// </summary>
// --------------------------------------------------------------------------------------------------------------------

namespace Sitecore.Commerce.Plugin.Reporting.Controller
{
    using System;
    using System.Collections.Generic;
    using System.Threading.Tasks;

    using Microsoft.AspNetCore.Mvc;

    using Sitecore.Commerce.Core;
    using Sitecore.Commerce.Plugin.Orders;
    using Core.Commands;
    using Coupons;
    using Model;
    using Pricing;

    public class OrderCouponsController : CommerceController
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="OrderCouponsController"/> class.
        /// </summary>
        /// <param name="serviceProvider">
        /// The service provider.
        /// </param>
        /// <param name="globalEnvironment">
        /// The global environment.
        /// </param>
        public OrderCouponsController(IServiceProvider serviceProvider, CommerceEnvironment globalEnvironment)
            : base(serviceProvider, globalEnvironment)
        {
        }

        [HttpGet]
        [Route("Get")]
        public async Task<IActionResult> Get()
        {
            //Here you should can add some caching...
            var findOrdersCommand = this.Command<FindEntitiesInListCommand>();

            var orders = await findOrdersCommand.Process<Order>(this.CurrentContext, CommerceEntity.ListName<Order>(), 0, int.MaxValue);

            if (orders == null)
            {
                return null;
            }

            var cartLineComponent = new List<OrderCoupon>();

            foreach (var order in orders.Items)
            {
                var coupons = order.GetComponent<CartCouponsComponent>();

                var reportingCoupon = new OrderCoupon();
                reportingCoupon.OrderId = order.Id;
                reportingCoupon.List = coupons.List;

                cartLineComponent.Add(reportingCoupon);
            }

            return Ok(cartLineComponent);
        }
    }
}