在 WebApi 2 ASP.NET 4.6.1 上启用 OData 过滤

Question

I have a legacy WebApi running on ASP.NET 4.6.1 where I need to be able to enable OData fitler support to an endpoint.

However, when debugging the controller through Postman, the ODataQueryOptions<Job> searchOptions on the controller is always null.

My query string example is;

https://localhost:44310/api/job/find/odata?Filter=[["Title"%2C"contains"%2C"T"]]&Skip=1&Top=5

I have added System.Web.Http.OData - V5.7.0.0 reference to the controller.

With the following in my WebApiConfig Register method;

    public static void Register(HttpConfiguration config)
    {
        // Web API configuration and services

        // Web API routes
        config.MapHttpAttributeRoutes();

        config.EnableQuerySupport();
        //config.AddODataQueryFilter();

        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

    }

To note I have tried both EnableQuerySupport() which intellisense is saying is obselete and AddODataQueryFilter() however neither seems to work.

In my controller I then have the following code;

    [HttpGet]
    [EnableQuery]
    [Route("find/odata")]
    public PageResult<Job> Find(ODataQueryOptions<Job> searchOptions)
    {
        ...
        return new PageResult<Job>(response.Result, null, null);
    }

I have tried with and without the [EnableQuery] filter with no change.

for reference the link I have been using is;

Microsoft OData tutorial

Answer 1

Any resolution on this? I'm seeing the same behavior. If I globally enable filter via config.Filter(), it works, but I'd rather enable it on a class by class or property by property basic, which doesn't appear to work.