/// <summary>
/// Returns action url from specified expression.
/// Use <see cref="From"/> when no matter value is or to get from current request
/// </summary>
public static string Action <TController>(
this IUrlHelper urlHelper,
Expression <Func <TController, object> > expression)
{
var methodCallExpression = RouteHelper.GetInnerMethodCallExpression(expression);
var actionDescriptor = urlHelper.ActionContext
.HttpContext
.RequestServices
.GetRequiredService <IActionDescriptorCollectionProvider>()
.ActionDescriptors
.Items
.OfType <ControllerActionDescriptor>()
.Single(ad => ad.MethodInfo == methodCallExpression.Method);
var actionArguments = RouteHelper.GetActionArguments(actionDescriptor.Parameters, methodCallExpression);
return(urlHelper.Action(actionDescriptor.ActionName, actionDescriptor.ControllerName, actionArguments));
}
public IActionRouteBuilder AddRoute <TResult>(
string template,
Expression <Func <TController, TResult> > expression)
{
var declaration = new RouteDeclaration(template);
services.Configure <RoutingOptions>(options =>
{
var methodCall = RouteHelper.GetInnerMethodCallExpression(expression);
foreach (var(info, parameter) in RouteHelper.GetRouteParameters(methodCall))
{
options.Parameters.Add(info, parameter);
}
options.Actions.Add(methodCall.Method, declaration);
});
return(new ActionRouteBuilder(declaration));
}
