What are route constraints in ASP.NET Core?

What are route constraints in ASP.NET Core?

Route constraints in ASP.NET Core are rules that determine whether a route should be considered a match for a given request.

Can you give me an example of how to use route constraints?

Sure! You can use route constraints to restrict a route to only match if a parameter is an integer, like this: {controller=Home}/{action=Index}/{id:int}.

What happens if a route doesn't meet the constraints?

If a route doesn't meet the constraints, it won't be considered a match, and the routing system will continue to look for other routes.

Are there built-in constraints in ASP.NET Core?

Yes, ASP.NET Core provides several built-in constraints, such as int, bool, datetime, and more, to help you define route parameters.