ANTOOZA-BACKEND/Web.Api/Endpoints/Store/OrdersPlace.cs

using System.Security.Claims;
using System.Text.Json.Serialization;
using Web.Api.Common;
using Web.Api.Extensions;
using Application.Abstractions.Messaging;

namespace Web.Api.Endpoints.Store;

public sealed class PlaceOrderRequest
{
    [JsonPropertyName("channelID")]
    public int? ChannelID { get; set; }

    [JsonPropertyName("items")]
    public List<PlaceOrderItem> Items { get; set; } = [];

    public sealed class PlaceOrderItem
    {
        [JsonPropertyName("productID")]
        public int ProductID { get; set; }

        [JsonPropertyName("quantity")]
        public int Quantity { get; set; }
    }
}

/// <summary>상점 — 주문 결제 (PgCharged 차감 + 채널 보상 + 게임사 정산 큐).</summary>
internal sealed class OrdersPlace : IEndpoint
{
    public void MapEndpoint(IEndpointRouteBuilder app)
    {
        app.MapPost("api/store/orders", async (
            PlaceOrderRequest body,
            ClaimsPrincipal user,
            ISender sender,
            CancellationToken ct
        ) => {
            var memberID = user.GetRequiredMemberID();
            var items = body.Items.Select(i =>
                new Application.Features.Api.Store.Orders.Place.Command.Item(i.ProductID, i.Quantity)
            ).ToList();

            var result = await sender.Send(new Application.Features.Api.Store.Orders.Place.Command(
                memberID,
                body.ChannelID,
                items
            ), ct);

            if (result.IsFailure)
            {
                return CustomResults.Problem(result);
            }
            return ApiResponse.Ok(result.Value);
        })
        .WithTags("Store")
        .RequireAuthorization();
    }
}