为什么没有查询参数传递给我的NancyFX模块？

Question

我正在我的应用程序中运行一个自托管的NancyFX Web服务器.现在我有一个托管的模块:

public class MetricsModule : NancyModule
{
    private IStorageEngine _storageEngine;

    public MetricsModule(IStorageEngine storageEngine) : base("/metrics")
    {
        _storageEngine = storageEngine;

        Get["/list"] = parameters =>
        {
            var metrics = _storageEngine.GetKnownMetrics();
            return Response.AsJson(metrics.ToArray());
        };

        Get["/query"] = parameters =>
        {
            var rawStart = parameters.start;
            var rawEnd = parameters.end;
            var metrics = parameters.metrics;

            return Response.AsJson(0);
        };
    }
}

我的Bootstrapper类是:

public class OverlookBootStrapper : DefaultNancyBootstrapper
{
    private readonly IStorageEngine _storageEngine;

    public OverlookBootStrapper(IStorageEngine storageEngine)
    {
        _storageEngine = storageEngine;
    }

    protected override void ConfigureApplicationContainer(TinyIoCContainer container)
    {
        container.Register(_storageEngine);
    }
}

我试图通过以下测试来测试它:

    [TestInitialize]
    public void Init()
    {
        _storageEngine = new Mock<IStorageEngine>();

         var bootstrapper = new OverlookBootStrapper(_storageEngine.Object);
         _browser = new Browser(bootstrapper);
    }

    [TestMethod]
    public void Query_Builds_Correct_Query_From_Parameters()
    {
        var metric = new Metric("device", "category", "name", "suffix");
        var startDate = DateTime.Now;
        var endDate = DateTime.Now.AddMinutes(10);
        var path = "/metrics/query";

        var response = _browser.Get(path, with =>
        {
            with.HttpRequest();
            with.Query("start", startDate.ToString());
            with.Query("end", endDate.ToString());
            with.Query("metrics", metric.ToParsableString());
        });

        Assert.AreEqual(HttpStatusCode.OK, response.StatusCode, "Incorrect status code returned");
        _storageEngine.Verify(x => x.ExecuteQuery(It.Is<Query>(y => y.StartDate == startDate)), Times.Once());
        _storageEngine.Verify(x => x.ExecuteQuery(It.Is<Query>(y => y.EndDate == endDate)), Times.Once());
        _storageEngine.Verify(x => x.ExecuteQuery(It.Is<Query>(y => y.Metrics.Contains(metric))), Times.Once());
    }

调试此测试并打开断点时return Response.AsJson(0);,我检查了参数对象并注意到它parameters.Count为零,并且所有3个值都为空.

我做错了什么？

编辑:当我在Web浏览器中调出此端点时,会出现同样的问题.我得到0的结果发送回我的浏览器,但是在调试时我发现NancyFX没有识别出我指定的查询字符串参数.

Answer 1

在parameters您的λ参数包含您在您拍摄的路由参数Get["/query"].在这种情况下没有.有关某些内容的示例,请参阅@ thecodejunkie的评论.

要使用查询参数Request.Query.这也是一个动态的,将包含请求中的任何查询参数.像这样:

 Get["/query"] = parameters =>
    {
        var rawStart = Request.Query.start;
        var rawEnd = Request.Query.end;
        var metrics = Request.Query.metrics;

        return Response.AsJson(0);
    };

这也适用于您的测试.