CODEWITHSUNDEEP
c#asp.net-coreroutes
42ama
42ama

Reputation: 141

ASP.NET Core: How to connect route parameter with query

I have route with connected action which retrieves blog post drom database and displays it.

routes.MapRoute(
    name: "GetPostToShow",
    template: "posts/{postId:int}",
    defaults: new { controller = "Home", action = "GetPostToShow" },
    constraints: new { httpMethod = new HttpMethodRouteConstraint(new string[] { "GET" }) });

Which results in url

https://localhost:44300/posts/2002

But I want it to look like this

https://localhost:44300/posts?postId=2002

So how I can implement it?

Upvotes: 0

Views: 225

Answers (2)

Achtung
Achtung

Reputation: 721

?postId=2002 is a GET variable and can be gotten as an argument in the controller method.

So you wouild simplify your MapRoute:

routes.MapRoute(
name: "GetPostToShow",
template: "posts",
defaults: new { controller = "Home", action = "GetPostToShow" },
constraints: new { httpMethod = new HttpMethodRouteConstraint(new string[] { "GET" }) });

And in the Controller have the Method:

public IActionResult GetPostToShow(int postId)

Of course even nicer is to use the decorator routing in my opinion. Then you would remove the MapRoute call and instead add the following decorator to the method:

[HttpGet("posts")]
public IActionResult GetPostToShow(int postId)

Upvotes: 2

Kalpesh Boghara
Kalpesh Boghara

Reputation: 461

Your routes look like below 

routes.MapRoute(
name: "GetPostToShow",
template: "posts/{postId(0)}",
defaults: new { controller = "Home", action = "GetPostToShow" },
constraints: new { httpMethod = new HttpMethodRouteConstraint(new string[] { "GET" }) });

Your GetPostToShow method in controller side look like below.

public virtual IActionResult GetPostToShow (int postId) 
{
    // your code and return view
}

Or into CSHTML page you want to use like below code.

@Url.RouteUrl("posts", new {postId= yourpostsIdhere})

Upvotes: 0

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