ion-route

The route component takes a component and renders it when the Browser URL matches the url property.

Note: this component should only be used with vanilla and Stencil JavaScript projects. For Angular projects, use ion-router-outlet and the Angular router.

Navigation Hooks#

Navigation hooks can be used to perform tasks or act as navigation guards. Hooks are used by providing functions to the beforeEnter and beforeLeave properties on each ion-route. Returning true allows navigation to proceed, while returning false causes it to be cancelled. Returning an object of type NavigationHookOptions allows you to redirect navigation to another page.

Interfaces#

interface NavigationHookOptions {
  /**
   * A valid path to redirect navigation to.
   */
  redirect: string;
}

Usage#

JAVASCRIPT
STENCIL
VUE

<ion-router>
  <ion-route url="/home" component="page-home"></ion-route>
  <ion-route url="/dashboard" component="page-dashboard"></ion-route>
  <ion-route url="/new-message" component="page-new-message"></ion-route>
  <ion-route url="/login" component="page-login"></ion-route>
</ion-router>

const dashboardPage = document.querySelector('ion-route[url="/dashboard"]');
dashboardPage.beforeEnter = isLoggedInGuard;

const newMessagePage = document.querySelector('ion-route[url="/dashboard"]');
newMessagePage.beforeLeave = hasUnsavedDataGuard;

const isLoggedInGuard = async () => {
  const isLoggedIn = await UserData.isLoggedIn(); // Replace this with actual login validation
  
  if (isLoggedIn) {
    return true;
  } else {
    return { redirect: '/login' }; // If a user is not logged in, they will be redirected to the /login page
  }
}

const hasUnsavedDataGuard = async () => {
  const hasUnsavedData = await checkData(); // Replace this with actual validation
  
  if (hasUnsavedData) {
    return await confirmDiscardChanges();
  } else {
    return true;
  }
}

const confirmDiscardChanges = async () => {
  const alert = document.createElement('ion-alert');
  alert.header = 'Discard Unsaved Changes?';
  alert.message = 'Are you sure you want to leave? Any unsaved changed will be lost.';
  alert.buttons = [
    {
      text: 'Cancel',
      role: 'Cancel',
    },
    {
      text: 'Discard',
      role: 'destructive',
    }
  ];
  
  document.body.appendChild(alert);
  
  await alert.present();
  
  const { role } = await alert.onDidDismiss();
  
  return (role === 'Cancel') ? false : true;
}

Properties#

beforeEnter#


Description	A navigation hook that is fired when the route tries to enter. Returning `true` allows the navigation to proceed, while returning `false` causes it to be cancelled. Returning a `NavigationHookOptions` object causes the router to redirect to the path specified.
Attribute	`undefined`
Type	`(() => NavigationHookResult \\| Promise<NavigationHookResult>) \\| undefined`
Default	`undefined`

beforeLeave#


Description	A navigation hook that is fired when the route tries to leave. Returning `true` allows the navigation to proceed, while returning `false` causes it to be cancelled. Returning a `NavigationHookOptions` object causes the router to redirect to the path specified.
Attribute	`undefined`
Type	`(() => NavigationHookResult \\| Promise<NavigationHookResult>) \\| undefined`
Default	`undefined`

component#


Description	Name of the component to load/select in the navigation outlet (`ion-tabs`, `ion-nav`) when the route matches. The value of this property is not always the tagname of the component to load, in `ion-tabs` it actually refers to the name of the `ion-tab` to select.
Attribute	`component`
Type	`string`
Default	`undefined`

componentProps#


Description	A key value `{ 'red': true, 'blue': 'white'}` containing props that should be passed to the defined component when rendered.
Attribute	`undefined`
Type	`undefined \\| { [key: string]: any; }`
Default	`undefined`

url#


Description	Relative path that needs to match in order for this route to apply. Accepts paths similar to expressjs so that you can define parameters in the url /foo/:bar where bar would be available in incoming props.
Attribute	`url`
Type	`string`
Default	`''`

Events#

Name	Description
`ionRouteDataChanged`	Used internally by `ion-router` to know when this route did change.