ServiceStack 自定义路由变量占位符没有任何约束验证？

Question

我有 2 个由 ServiceStack 服务构建的端点：

DELETE: /parents/{parentId} 删除一个 parent，连同其所有 children
DELETE: /parents/{parentId}/children/{childId} 为所选 parent

删除parent: /parents/{parentId}

[Api("Delete a parent")]
[Tag("Parent")]
[Route("/parents/{parentId}", HttpMethods.Delete)]
public class DeleteParentRequest : IReturnVoid
{
    [ApiMember(ParameterType = "path", IsRequired = true)]
    public int ParentId { get; set; }
}

[Authenticate]
public class ParentService : Service
{
    ...

    public void Delete(DeleteParentRequest request)
    {
        // Logic to delete parent, along with all its children
    }
}

删除ParentChild:/parents/{parentId}/children/{childId}

[Api("Delete a parent child")]
[Tag("Parent Child")]
[Route("/parents/{parentId}/children/{childId}", HttpMethods.Delete)]
public class DeleteParentChildRequest : IReturnVoid
{
    [ApiMember(ParamterType = "path", IsRequired = true)]
    public int ParentId { get; set; }

    [ApiMember(ParameterType = "path", IsRequired = true)]
    public int ChildId { get; set; }
}

[Authenticate]
public class ParentChildService : Service
{
    ...

    public void Delete(DeleteParentChildRequest request)
    {
        // Delete the parent child
    }
}

这 2 个端点按预期工作。

不幸的是（或者实际上是幸运的），我们的 QA 在测试删除 child 端点时传递了错误的端点。他放在Postman上的是DELETE: /parents/children?parentId=1&other=rndString.

当我们调用错误的端点时，我期望的是我们应该得到一个 404 not found，因为它与我们的任何端点都不匹配。但令人惊讶的是，它实际上调用了 delete-parent 端点 DELETE: /parents/{parentId}.

那怎么会发生，即使我已经在请求 DTO 中有一个匹配的 integer 属性调用 ParentId 告诉 ServiceStack 我期待一个来自路线的整数？ ServiceStack 有自己的路由约束吗？还是我必须自己实施？

Answer 1

路由路径本身没有约束，即这个定义：

[Route("/parents/{parentId}", HttpMethods.Delete)]

将匹配每个 DELETE 与路由匹配的请求，即：

DELETE /parents/1
DELETE /parents/foo

您可以使用 Custom Route Rule 应用路由约束，例如：

[Route("/parents/{parentId}", HttpMethods.Delete, Matches = "**/{int}")]

将应用 built-in **/{int} 路由规则以仅匹配最后一个段为整数的路由，即：

DELETE /parents/1

ServiceStack 自定义路由变量占位符没有任何约束验证？

ServiceStack custom route variable placeholder doesn't have any constraint validation?

c#

servicestack

servicestack-routing

删除parent: /parents/{parentId}

删除ParentChild:/parents/{parentId}/children/{childId}