Creating a domain route

In this recipe, we will learn how to create a domain route.

Getting ready

There are some scenarios where domain routing could be very useful and interesting:

• URLs can be as follows when using multi-lingual web applications:

route like "www.{language}-{culture}.domain.com" or "www.{language}.domain.com"

• URLs can be as follows when using multi-tenant web applications:

route like "www.{controller}.domain.com", "www.{area}.domain.com", "www.{subentity}.domain.com"

How to do it...

Let's just add new routes to Startup.cs:

public void Configure(IApplicationBuilder app) 
{ 
app.UseMvc(routes => 
{ 
  routes.MapRoute( 
 name: "DomainRoute", 
 template: "home.domain.com/{action=Index}/{id?}"); 
 
  routes.MapRoute( 
 name: "DomainRoute2", 
 template: "{controller=Home}.domain.com/{id?}"); 
 
  routes.MapRoute( 
 name: "DomainRoute3", 
 template: "{controller=Home}-{action=Index}.domain.com/{id?}");
 } 
}