In Angular 6 how make case insensitive url pattern?

Question

In my case I want to support same url in case insensitive manner.

Example: it should support all url

localhost:1029/documentation
localhost:1029/DOCUMENTATION
localhost:1029/DOCUMENTAtion
localhost:1029/docuMENTATION

Answer 1

You should add this provide statement to the app.module.ts

    import { DefaultUrlSerializer, UrlTree } from '@angular/router';
    
    export class LowerCaseUrlSerializer extends DefaultUrlSerializer {
        parse(url: string): UrlTree {
            // Optional Step: Do some stuff with the url if needed.
    
            // If you lower it in the optional step 
            // you don't need to use "toLowerCase" 
            // when you pass it down to the next function
            return super.parse(url.toLowerCase()); 
        }
    }

And

    @NgModule({
        imports: [
          ...
        ],
        declarations: [AppComponent],
        providers: [
            {
                provide: UrlSerializer,
                useClass: LowerCaseUrlSerializer
            }
        ],
        bootstrap: [AppComponent]
    })

Answer 2

You need a UrlSerializer as follow:

import { DefaultUrlSerializer, UrlTree } from '@angular/router';


 export class LowerCaseUrlSerializer extends DefaultUrlSerializer {
   parse(url: string): UrlTree {
      return super.parse(url.toLowerCase());
  }
}

And then added it as a provider in the app.module.ts

providers: [
 {
   provide: UrlSerializer,
   useClass: LowerCaseUrlSerializer
}
]