Passing querystring parameters without using OData conventions?
Solution 1
In this instance, the issue I was running into was the fact that I had multiple overloads for GET on my WebApi controller instance. When I removed those (and condensed everything down to one Get method with more optional parameters and control-flow inside the method itself) everything worked as expected.
Solution 2
When you start to use querystring you actually call exact method of controller with its parameters. What I prefer you to change your router like :
context.Routes.MapHttpRoute(
name: "APIv1_api_pagination",
routeTemplate: "api/v1/{controller}/{action}/{id}",
defaults: new { area = AreaName, controller = "category", offset = 0, count = 100});
and then change your method into
public HttpResponseMessage Items(int id, int offset = 0, int count = 0);
From now on whenever you query like
http://localhost/api/v1/category/Items?id=1&offset=10&count=0
it will run.
Another method came to my mind while writing this. I don't know if it works but try to change your router like
context.Routes.MapHttpRoute(
name: "APIv1_api_pagination",
routeTemplate: "api/v1/{controller}/{id}/{offset}/{count}",
defaults: new { area = AreaName, controller = "category", offset = RouteParameter.Optional, count = RouteParameter.Optional});
Aaronontheweb
CTO of Petabridge. Founder of Akka.NET, Helios projects.
Updated on June 14, 2022Comments
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Aaronontheweb almost 2 years
Is there a way to pass querystring parameters to an ASP.NET MVC4 Web Api controller without using the OData conventions outlined here?
http://www.asp.net/web-api/overview/web-api-routing-and-actions/paging-and-querying
I have some repository methods built using Dapper that don't support IQueryable and want to be able to manually paginate them without using the OData conventions, but whenever I try doing it the traditional ASP.NET way I get "route not found" errors.
For instance, here's a route:
context.Routes.MapHttpRoute( name: "APIv1_api_pagination", routeTemplate: "api/v1/{controller}/{id}", defaults: new { area = AreaName, controller = "category", offset = 0, count = 100});
And here's the signature to match
public class CategoryController : ApiController { // GET /api/<controller> public HttpResponseMessage Get(int id, int offset = 0, int count = 0)
And whenever I pass the following query:
http://localhost/api/v1/category/1?offset=10
I get the following error:
No action was found on the controller 'Category' that matches the request.
Any suggestions on how to work with querystrings sanely in ASP.NET MVC4 Web Api?