public async Task <int> Handle(CreateOrderRequest request, CancellationToken cancellationToken)
{
var strategy = dbContext.Database.CreateExecutionStrategy();
await strategy.ExecuteAsync(async() =>
{
using (var trans = dbContext.Database.BeginTransaction(capBus, autoCommit: true))
{
//业务代码
var query = dbContext.Products.FirstOrDefault(p => p.ProductCode == request.Model.ProductCode);
if (query == null)
{
throw new FriendlyException()
{
ExceptionCode = 404,
ExceptionMessage = $"The product: {request.Model.ProductCode} does not exists."
};
}
query.ProductAmount--;
string orderNO = DateTime.Now.ToString("yyyyMMddHHmmssfff").ToString();
string accessToken = await httpContextAccessor.HttpContext.GetTokenAsync("access_token");
CreateOrderCapMessage capMessage = new CreateOrderCapMessage()
{
AccessToken = accessToken, OrderNO = orderNO, ProductCode = query.ProductCode
};
capBus.Publish("productservice.orderingservice.createorder", capMessage);
await dbContext.SaveChangesAsync(cancellationToken);
}
});
return(1);
}
public async Task CreateOrder(CreateOrderCapMessage capMessage)
{
ISubscriberCallApi callApi = RestService.For <ISubscriberCallApi>(Configuration["ApiGatewayService:Url"],
new RefitSettings()
{
AuthorizationHeaderValueGetter = () => Task.FromResult <string>(capMessage.AccessToken)
});
await callApi.AddOrder(new AddOrderModel()
{
OrderNO = capMessage.OrderNO, ProductCode = capMessage.ProductCode
});
}
