What is the process for modifying href generation in UI-Router for Angular 2?

Question

What is the process for modifying href generation in UI-Router for Angular 2?

I am currently working on implementing subdomain support for UI-Router. Consider the following routes with a custom attribute 'domain':

{ name: 'mainhome', url: '/', domain: 'example.com', component: 'MainSiteComponent' },
{ name: 'bloghome', url: '/', domain: 'me.example.com',
component: 'BlogComponent' },

PLEASE NOTE: both routes share the same route URL

I am aiming to modify the href generation by the uiSref directive, taking into account the current domain AND the custom domain property.

The active route should be identified as either "mainhome" or "bloghome" depending on the current domain.

When accessing http://example.com/:

<a uiSref="mainhome"> transforms into <a href="/">

<a uiSref="bloghome"> turns into

<a href="http://me.example.com/">

Upon visiting :

<a uiSref="mainhome"> changes to

<a href="http://example.com/">

<a uiSref="bloghome"> is converted to <a href="/">

Your assistance with this matter would be greatly appreciated!

angular typescript angular-ui-router subdomain router

Answer 1

Answer №1

To manipulate the path part of the URL, ui-router is the tool to use as it focuses on path rather than hostname. In cases where you need to deal with different domains, it might be best to consider building two separate apps.

One way to control the transition between states is by using a transition hook. This hook allows you to intercept and handle the next transition, making it possible to redirect to a different domain if needed.

If you're looking for a quick example, check out this plunker sample based on the ui-router hello-world demo.

Let's start by defining the states:

const states = [
    { name: 'mainhome', url: '/', host: 'example.com', component: 'MainSiteComponent' },
    { name: 'bloghome', url: '/', host: 'me.example.com', component: 'BlogComponent' },
]

We can then create an onStart transition hook that will run before any state transition, checking if the next state has a different host compared to the current one.

function uiRouterConfigFn(router: UIRouter, injector: Injector) {
    router.transitionService.onStart({to: "*"}, function($transition) {
         const nextState = $transition.to();
         const host = window.location.host;
         if (nextState && nextState.host && nextState.host !== host) {
             window.location = `${window.location.protocol}://${nextState.host}/${nextState.url}`;
        }
    });
}

Lastly, utilize the config method to apply our configuration function:

@NgModule({
    imports: [ 
        ...,
        UIRouterModule.forRoot({ states: states, config: uiRouterConfigFn })
   ],
   ...
})
class RootAppModule {}

Answer 2

To manipulate the path part of the URL, ui-router is the tool to use as it focuses on path rather than hostname. In cases where you need to deal with different domains, it might be best to consider building two separate apps.

One way to control the transition between states is by using a transition hook. This hook allows you to intercept and handle the next transition, making it possible to redirect to a different domain if needed.

If you're looking for a quick example, check out this plunker sample based on the ui-router hello-world demo.

Let's start by defining the states:

const states = [
    { name: 'mainhome', url: '/', host: 'example.com', component: 'MainSiteComponent' },
    { name: 'bloghome', url: '/', host: 'me.example.com', component: 'BlogComponent' },
]

We can then create an onStart transition hook that will run before any state transition, checking if the next state has a different host compared to the current one.

function uiRouterConfigFn(router: UIRouter, injector: Injector) {
    router.transitionService.onStart({to: "*"}, function($transition) {
         const nextState = $transition.to();
         const host = window.location.host;
         if (nextState && nextState.host && nextState.host !== host) {
             window.location = `${window.location.protocol}://${nextState.host}/${nextState.url}`;
        }
    });
}

Lastly, utilize the config method to apply our configuration function:

@NgModule({
    imports: [ 
        ...,
        UIRouterModule.forRoot({ states: states, config: uiRouterConfigFn })
   ],
   ...
})
class RootAppModule {}

What is the process for modifying href generation in UI-Router for Angular 2?

Answer №1

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