Paramter Binding not working in WebAPI

Paramter Binding not working in WebAPI

for below two controllers, /api/container/dasdada is returning "a". If i
do a container?value=hello i do get "hello". What can cause the parameter
binding not to work?
public HttpResponseMessage Get()
{
return Request.CreateResponse<string>("a");
}
public HttpResponseMessage Get(string value)
{
return Request.CreateResponse<string>(value);
}
I am using Katana to host it:
HttpConfiguration apiConfig = new HttpConfiguration();
apiConfig.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
apiConfig.Formatters.Remove(apiConfig.Formatters.XmlFormatter);
apiConfig.Formatters.JsonFormatter.SerializerSettings.ContractResolver
= new CamelCasePropertyNamesContractResolver();
app.UseDependencyResolver(resolver)
.UseWebApiWithOwinDependencyResolver(resolver, apiConfig);
app.UseWebApi(apiConfig);