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Question

I read a lot of blogs and questions available regarding the routes in asp.net core but did not find any one mentioning something similar.

In some conditions I want my routes to look like:

/products/1/reviews/1

Where products and reviews are followed by their id OR more nested route like:

/products/1/images/1/comments/1

Is there a way I can define a template route for it like the default one:

app.UseMvc(routes =>
{
    routes.MapRoute(
        name: "default",
        template: "{controller=Home}/{action=Index}/{id?}");
});

Answer 1

You can use Attribute based routing

[Route("[conroller]/[action]")]
public class ImagesController
{
    [HttpGet("/[controller]/{productId:int}/images/{imageId:int}/comments/{commentId:int}")]
    public IActionResult GetComments(int productId, int imageId, int commentId) 
    {
    }
}

Answer 2

routes.MapRoute(
    name: "Products",
    template: "products/{productId}/{action?}/{commentId?}",
    defaults: new { controller = "Products", action = "Index" });

https://docs.asp.net/en/latest/fundamentals/routing.html - Routing in ASP.NET Core

Answer 3

There is no difference with the route format of ASP.NET and ASP.NET Core.

You can check this one: ASP.NET Routing

To achieve your goal, all you have to do is define the route ON TOP of your default route.