Angular 2 Route params validation

Question

How can I validate Route params in Angular2? For example, I have a route:

{path: 'artist/:id', component: ArtistInfoComponent}

All I want is to check if parameter id is a valid number and if so, just show the component. Otherwise show a page with error message.

I found Route Guards in Angular 2 but I think this isn't the best way to do validation because I can have many different params for different pages and writing individual Route Guard for all these pages isn't what I want.

Is there a possibility to specify a regex for each route parameter?

UPD: Maybe there is a way to do a validation on query params? I mean if I have such url: /search?q=blablabla&page=2 how can I check if the parameter page is valid? Is there a way to do it without Guards?

Answer 1

Guards are the way to go, you could put validation configuration into data section of the route and create reusable guard to validate parameters based on this configuration.