Webhook中的会话已更改 [英] Session Changed In Webhook
问题描述
我正在使用Stripe和.Net建立一个网上商店,但是我遇到了一些问题,即会话无法持久保存在我的Webhook中,因此该Webhook无法获取购物车或客户信息.
Im building a webshop using Stripe and .Net, and I'm having some problems with the session not persisting in my webhook and as a result the webhook is unable to get cart or customer information.
我的添加到购物车方法如下:
My add to cart method looks like this:
var cartList = new List<CartProduct>();
var stringObj = _session.GetString("cart");
/* Logic for deserializing stringObj into List<CartProduct> */
stringObj = JsonConvert.SerializeObject(cartList);
_session.SetString("cart", stringObj);
如果我查看_session,我可以看到它有一个ID.但是,当我尝试从Webhook获取购物车时,会话ID已更改,因此购物车为空.
If I look at _session I can see it has an ID. However, when I try to get the cart from my webhook, the session ID has changed and as a result the cart is null.
我的get cart方法会自动触发.使用网络挂钩成功,并开始如下操作:
My get cart method fires at charge.succeeded using the webhook and starts of like this:
var cart = _session.GetString("cart"); // Returns null because session has changed
var cartList = JsonConvert.DeserializeObject<List<CartProduct>>(cart); // Exception thrown due to cart being null
我尝试使cookie成为必需,并将CheckConsentNeeded设置为false.这是我的startup.cs文件的ConfigureServices方法:
I've tried making the cookie essential, and setting CheckConsentNeeded to false. This is my ConfigureServices method of the startup.cs file:
public void ConfigureServices(IServiceCollection services)
{
services.AddRazorPages();
services.AddMvc(option => option.EnableEndpointRouting = false);
services.AddSession(options => {
options.Cookie.Name = "cart";
options.Cookie.MaxAge = TimeSpan.FromDays(365);
options.Cookie.IsEssential = true; // make the session cookie Essential
});
services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration["DefaultConnection"], b => b.MigrationsAssembly("ShopTutorial.Database")));
services.Configure<CookiePolicyOptions>(options =>
{
// This lambda determines whether user consent for non-essential cookies is needed for a given request.
options.CheckConsentNeeded = context => false;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
}
app.UseSession();已添加到同一类的Configure方法中.
app.UseSession(); has been added to the Configure method of the same class.
推荐答案
我通过将购物车信息添加到持续60秒的MemoryCache中来解决了该问题以"Stripe付款意图说明"(新的GUID)为键:
I solved it by adding the cart information to a MemoryCache lasting for 60 seconds with the Stripe payment intent description (a new GUID) as a key:
var intent = new CreatePaymentIntent();
ObjectCache cache = MemoryCache.Default;
cache.AddOrGetExisting(intent.Description, Cart, new CacheItemPolicy {
AbsoluteExpiration =
DateTimeOffset.Now.AddSeconds(60.0)
});
然后,在webhook中,我使用从Stripe发回的intent对象的描述中存储的特定键调用了相同的缓存:
Then, in the webhook I called the same cache with the specific key that is stored in the intent object's description sent back from Stripe:
var charge = stripeEvent.Data.Object as Stripe.Charge;
ObjectCache cache = MemoryCache.Default;
var cart = (Cart)cache.Get(charge.Description);
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