146. Redirecting and Wildcard Routes

Jul 15, 2026 05:37 · 4:36 · English · Whisper Turbo · 3 Luidsprekere

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Saakregister

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Whoa, you already learned a lot about routing.

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We're nearing the end.

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But did you ever wonder what happens if we enter something

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here, which we don't cover?

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Like let's say it's just slash something.

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We get an error because clearly we

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don't have a route with slash something here.

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So that is something we probably want to improve.

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We want to do some 404 error handling.

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We maybe want to redirect the user to a specific page

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whenever he tries to visit a page we don't have.

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These are the topics I'll focus on next.

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Setting up a route which handles all routes we don't have

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set up and redirecting requests.

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Not necessarily to topics you use together,

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but also not that uncommon.

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So let's start with redirecting.

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Let's say we add a new component to our application

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and I will use the CLI for this with the GC for generate component command

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and I'll name it page not found.

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The page not found component which was added here in our app folder in

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this new page not found folder.

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I'll go to the spec file and here I

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will simply say in the template

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this page was not found.

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Something like this.

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Now I want to render this page in,

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let's say,

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the case that we visit a certain route.

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I'll add it here at the bottom where the path

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is for now something.

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And in the something case here,

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I want to load my page not found component.

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Of course,

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make sure that you added it to declarations and so on because we're still using it in our app,

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of course.

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So with this in place,

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If we now save this,

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go back to our application and visit slash something,

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we of course see this page was not found.

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Now let's change something to not found.

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And let's make sure that once we add another new route,

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which then is something,

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let's say, we don't also have to add component here,

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but we redirect to another route,

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to the not found route maybe.

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For this,

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we got another property we can add to any route config here.

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So, of course,

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also to any of the other routes.

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If you don't want to specify a component to load,

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you can say redirect to.

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Now,

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this is an alternative to component.

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Component loads the specific component,

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redirect to redirects to another path.

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So,

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here, you can specify any path,

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and the path maybe now is slash not found.

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So,

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now, if you do this,

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you see that it automatically redirected.

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So let me show you this again by typing slash something,

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watch the URL,

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it redirects to slash not found.

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And all the other routes,

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of course, still work.

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So this is how we can use redirection.

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Now,

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of course, it's not very convenient to define slash something here because you probably

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can't define all possible wrong URLs the

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user can enter.

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So a more convenient way to catch all

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routes which are not covered by your app is to use the

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double asterisk route here.

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This is the wildcard route,

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which means...

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Catch all paths you don't know.

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And the order is super important here.

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Make sure that this very generic route is the

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last one in your array of routes because your routes get

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parsed from top to bottom here.

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So if this was actually at the beginning,

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you would always get redirected.

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As I can quickly show you by saving this like this.

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Now,

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no matter where you click,

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you always are redirected to not found.

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So make sure this is the last route here in your setup.

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And with this,

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now all the other routes work.

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But if you enter anything invalid here,

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you always get redirected to not found because now

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you're using this wildcard route,

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catching all routes which are unknown to Angular at this point of

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time once it reaches this line here.

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And which then redirects to the not found route,

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which displays the page not found.

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page or component.

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This is how you can redirect and make sure you catch

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routes you're not covering right now

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