Finished payment core feature

Author: dLopes-SE

src/Features/Payments/Webhook/PaymentWebhookCommand.cs

@@ -0,0 +1,5 @@
+using dotnet_qrshop.Abstractions.Messaging;
+
+namespace dotnet_qrshop.Features.Payments.Webhook;
+
+public sealed record PaymentWebhookCommand(HttpRequest Request) : ICommand;

src/Features/Payments/Webhook/PaymentWebhookCommandHandler.cs

@@ -0,0 +1,14 @@
+using dotnet_qrshop.Abstractions;
+using dotnet_qrshop.Abstractions.Messaging;
+using dotnet_qrshop.Common.Results;
+
+namespace dotnet_qrshop.Features.Payments.Webhook;
+
+public class PaymentWebhookCommandHandler(IPaymentService _paymentService) : ICommandHandler<PaymentWebhookCommand>
+{
+  public async Task<Result> Handle(PaymentWebhookCommand command, CancellationToken cancellationToken)
+  {
+    await _paymentService.HandleWebhookAsync(command.Request);
+    return Result.Success();
+  }
+}

src/Features/Payments/Webhook/PaymentWebhookEndpiont.cs

@@ -0,0 +1,22 @@
+using Carter;
+using dotnet_qrshop.Abstractions.Messaging;
+using dotnet_qrshop.Common.Extensions;
+using dotnet_qrshop.Common.Results;
+
+namespace dotnet_qrshop.Features.Payments.Webhook;
+
+public class PaymentWebhookEndpoint : ICarterModule
+{
+  public void AddRoutes(IEndpointRouteBuilder app)
+  {
+    app.MapPost("webhook/payment", async (
+      HttpRequest request,
+      ICommandHandler<PaymentWebhookCommand> handler,
+      CancellationToken cancellationToken) =>
+    {
+      var result = await handler.Handle(new PaymentWebhookCommand(request), cancellationToken);
+      return result.Match(() => Results.Ok(), CustomResults.Problem);
+    })
+      .WithName("PaymentWebhook");
+  }
+}

src/Features/Payments/Webhook/StripeEventTypeParser.cs

@@ -6,7 +6,7 @@ public static StripeEventType Parse(string eventType)
   {
     return eventType switch
     {
-      "checkout.session.completed" => StripeEventType.CheckoutSessionCompleted,
+      "payment_intent.succeeded" => StripeEventType.CheckoutSessionCompleted,
       "payment_intent.payment_failed" => StripeEventType.PaymentIntentPaymentFailed,
       _ => StripeEventType.Unknown
     };

src/Services/StripePaymentService.cs

@@ -1,5 +1,6 @@
 using dotnet_qrshop.Abstractions;
 using dotnet_qrshop.Features.Payments.Webhook;
+using dotnet_qrshop.Infrastructure.Database.DbContext;
 using Stripe;
 
 namespace dotnet_qrshop.Services;
@@ -8,11 +9,13 @@ public class StripePaymentService : IPaymentService
 {
   private readonly string _apiSecretKey;
   private readonly string _webhookSecret;
+  private readonly ApplicationDbContext _dbContext;
 
-  public StripePaymentService(IConfiguration configuration)
+  public StripePaymentService(IConfiguration configuration, ApplicationDbContext dbContext)
   {
     _apiSecretKey = configuration["Stripe:SecretKey"] ?? throw new InvalidOperationException("Stripe Api secret not configured.");
     _webhookSecret = configuration["Stripe:WebhookSecret"] ?? throw new InvalidOperationException("Stripe Webhook secret not configured.");
+    _dbContext = dbContext;
   }
 
   public async Task<string> CreatePaymentIntentAsync(int orderId, decimal amount, CancellationToken cancellationToken)
@@ -42,7 +45,8 @@ public async Task HandleWebhookAsync(HttpRequest request)
       stripeEvent = EventUtility.ConstructEvent(
         json,
         request.Headers["Stripe-Signature"],
-        _webhookSecret
+        _webhookSecret,
+        throwOnApiVersionMismatch: false
       );
     }
     catch (StripeException e)