.Net OData - Manually get metadata entity url

[perci994]

Hi

I have a question, I'm using OData and I'm doing it manually. That is, I am using ODataQueryOptions as a parameter and then the ApplyTo method. However, I would like to add a metadata reference as well I mean - https://localhost:5001/api/odata/$metadata#Order. Is there any way to do this please? I can't seem to find it.

public virtual SomeDto Handle(ODataQueryOptions<Order> query)
{
    var result = new SomeDto();

    // result.ContextUrl = request.....?; //https://localhost:5001/api/odata/$metadata#Order
    result.Items = request.Query.ApplyTo(dbQuery).ToList();

    return result;
}

Thanks a lot

[ElizabethOkerio]

AspNetCoreOData/src/Microsoft.AspNetCore.OData/Extensions/LinkGeneratorHelpers.cs

Line 37 in 55dc8bd

public static string CreateODataLink(this HttpRequest request, params ODataPathSegment[] segments)

.. Hi. you can try these HttpRequest extension methods to create a URL that you'd like to add as a metadata reference. Let's know if you are able to do it or if you have any questions.

[perci994]

Hi, thank you for help. I tried use this method but im not sure if i use it correctly.

public virtual OutputDto Handle(ODataQueryOptions<AllBomItemOutputDto> query)
{
	.....

       var url = query.Request.CreateODataLink();
           
       return result;
 }

Url returns me this value: "https://localhost:5001/". Do i something wrong?
Thank you

[xuzhg]

Try to add parameters when calling query.Request.CreateODataLink().

query.Request.CreateODataLink(MetadataSegemnt.Instance, ....)

[petrkasnal]

@xuzhg Thank you for the answer. And where exactly do I get the MetadataSegemnt.Instance?

[xuzhg]

Sorry, there's a typo. It should be "MetadataSegment".

namespace Microsoft.OData.UriParser;

//
// Summary:
//     A segment representing $metadata in a path.
public sealed class MetadataSegment : ODataPathSegment

You can use the following sample to get a Uri:

So, if you need '#Order', you can append it by yourself.

[petrkasnal]

But i don't want create it manually. I hope that can be create autoamtically like normaly OData do it.