OpenRasta URI Maps to Wrong Method and returns inconsistent http status codes

Question

I'm using OpenRasta framework in a .net service and I have two methods as below in the handler

public OperationResult Get(int Number)
{
// Do some operation and get an entity
  return new OperationResult.OK(Single-MyResource);
}

public OperationResult GetQ()
{
// Do some operation and get an entity
  return new OperationResult.OK(List-Of-MyResource);
}

My configuration looks like below

ResourceSpace.Has.ResourcesOfType<MyResource>()
          .AtUri("/MyResource/{Id}")
          .And.AtUri("/MyResource")
          .HandledBy<MyResourceHandler>()
          .AsJsonDataContract() 
          .And.AsXmlDataContract()


 ResourceSpace.Has.ResourcesOfType<IList<MyResource>>()
         .AtUri("/MyResources") 
         .HandledBy<MyResourceHandler>()
         .AsJsonDataContract()
         .And.AsXmlDataContract();

HttpMethod: GET AcceptHeader: "application/json" URI: http://testDomain.com/MyResource/

The above request gives me the List of MyResource , same as what i get for the below Request

HttpMethod: GET AcceptHeader: "application/json" URI: http://testDomain.com/MyResources/

After changing Configuration to

ResourceSpace.Has.ResourcesOfType<MyResource>()
          .AtUri("/MyResource/{Id}")
          .And.AtUri("/MyResource").Named("MyResource")
          .HandledBy<MyResourceHandler>()
          .AsJsonDataContract() 
          .And.AsXmlDataContract()

and making appropriate change in handler i.e

[HttpOperation(HttpMethod.GET, ForUriName = "MyResource")]

OpenRasta returns 415 http Status Code.

The above is not consistent again.

For my other Resource for similar configuration as above OpenRasta throws 403 http Status Code

score 1 · Answer 1 · answered Jul 24 '12 at 13:37

1

The first case is correct. You share a handler between the two. As such, when the handler is looked at to select a method, there is one candidate with a parameter and one without. When you to to /MyResource, it finds the handler and find the method that has no parameter. This is expected behavior.

In your second configuration, there's something missing there. A 415 is when the request data is not understood by OR. As it's a GET, there should be no request media type to deal with. This one will require a debug log to check what is going on. Are you sure your request is not coming with some request data and a Content-Type?

answered Jul 24 '12 at 13:37

SerialSeb

6,701
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Yes, My request is not passing any data and Content-Type. – sham Jul 27 '12 at 07:07
Details of the Request while executing on Fiddler. GET http://testDomain.com/RestLayer/MyResource Request Headers User-Agent: Fiddler Host: testDomain.com Authorization: token abcabaabcacbacba Status returned is 415 – sham Jul 27 '12 at 07:33

score 0 · Answer 2 · answered Dec 07 '12 at 12:12

The GET side of OpenRasta, I have got pretty well in my mind, It's the POST I still struggle with:

I've done really similar things to you for JSON only, but done it like this:

    ResourceSpace.Has.ResourcesOfType<IList<MyResource>>()
                .AtUri("/myresource").And
                .AtUri("/myresource/{id}").HandledBy<ResourceHandler>().AsJsonDataContract();



    [HttpOperation(HttpMethod.GET)] 
    public IEnumerable<MyResource> Get(int id = 0)
    {
        if (id == 0)
            return Context.Set<MyResource>().ToList();
        else
            return GetMyResourceMethod(id).ToList();
    }

    private IQueryable<MyResource> GetMyResourceMethod(int id)
    {
        var myresource = from resource in Context.Set<MyResource>()
                      where resource.MyResourceId == id
                      select resource;
        return myresource;
    }

You can handle both with and without parameters with a default parameter in your Get method. I think from your second configuration your missing the IList from your ResourceType because the non parametered option will return a list. It is then impreitive to return a IEnumerable via the ToList() method.

This all assumes your using SQL-to-Linq in your 'List-Of-MyResource', but I can't see that part of your code and what it is doing. If not just ignore the private function I've included and take your own approach.

OpenRasta URI Maps to Wrong Method and returns inconsistent http status codes

2 Answers2