如何将过滤器选项从ODataQueryOptions映射到RestRequest

Question

I need to be able to convert from ODataQueryOptions to RestRequest in order to be able to issue a RestRequest with specified filters, and have created the following helper class:

public static class ODataQueryFilterToRestClient
{
    public static RestRequest Map(ODataQueryOptions odataQuery)
    {
        var restRequest = new RestRequest();

        if (odataQuery.Filter != null)
        {
            restRequest.AddQueryParameter(@"$filter", odataQuery.Filter.RawValue);
        }

        if (odataQuery.Top != null)
        {
            restRequest.AddQueryParameter(@"$top", odataQuery.Top.RawValue);
        }

        if (odataQuery.Skip != null)
        {
            restRequest.AddQueryParameter(@"$skip", odataQuery.Skip.RawValue);
        }

        if (odataQuery.OrderBy != null)
        {
            restRequest.AddQueryParameter(@"$orderby", odataQuery.OrderBy.RawValue);
        }
        //etc
        return restRequest;
    }
}

Given that OdataQueryOptions supports the following:

Is there a simpler way to make the conversion between ODataQueryOptions to RestClient, or another rest client proxy?

On a side note, I don't know if there's a better way to accept parameters through a controller than ODataQueryOptions?

Answer 1

There is no direct support of ODataQueryOptions in RestSharp .

There are other clients designed specifically for querying with OData , eg Simple.OData.Client . However it also doesn't operate with ODataQueryOptions for requests, providing fluent API.

Overall ODataQueryOptions is rather used on a server-side in OData compatible RESTful APIs. Clients (including RestSharp ) just use their regular syntax to provide the data for request.

So answering your question (Is there a simpler way...) - No, there is not.

However your conversion method looks nice and pretty simple. If I had to make a call with RestSharp for given ODataQueryOptions , I'd do this exactly in the same way.