CODEWITHSUNDEEP
javascriptsingle-page-applicationvue.jsvue-router
harryg
harryg

Reputation: 24107

In Vue and Vue Router SPA, showing 404 for a not found resource

I'm using Vue and Vue Router in a SPA. In a view component I query a repository for a resource. If the resource is not found I want to show a 404 page whilst keeping the URL.

I.e. if I visit /foo/non-existant-id then a 404 page should be shown in place of the show page for the foo resource.

For clarity here is my router map:

router.map({
  '/foo/:id': {name: 'foo-show', component: FooShowPage},

  // Utilities
  '/': { name: 'home', component: HomePage },
  '*': { name: '404', component: NotFoundPage }
})

And in my FooShowPage I do the following:

ready () {
  // fetch the foo from the repo (app.foos)
  app.foos.fetchById(this.$route.params.id).then(foo => {
    this.foo = foo
  }).catch(e => {
    // foo is not found show a 404 page
    // using this.$route.router.go({name: '404'}) does not work as route is a wildcard 
    console.warn(e)
  })
}

Essentially it would probably involve replacing the FooShowPage in the router view with NotFoundPage, or redirecting to a defined 404 page whilst keeping the browser history untouched.

Upvotes: 4

Views: 11774

Answers (3)

Denis
Denis

Reputation: 1268

Found a solution at Vue.js forum — use navigation guard:

import store from '../store'

{
  path: '/lavori/:lavoro',
  name: 'lavoro',
  component: Lavoro,
  beforeEnter: (to, from, next) => {
    function isValid (id) {
      return store.getters.resourceByID(id) !== undefined
    }

    if (!isValid(to.params.id)) {
      next({ name: 'not-found' });
    }    
    next();
  }
},

Edit1: need to import store to get access to getters, from this Github issue and this question

Still a question how to leave same (requested) URL

Upvotes: 1

Jeff Adams
Jeff Adams

Reputation: 129

The best I've figured out how to do is to use a global interceptor with Axios to redirect all 404 responses received through the API the 404 route. However that does change the url to /404 like @Leo's answer. 

const http = axios.create({
  headers: {
    'X-Requested-With': 'XMLHttpRequest'
  }
});

// Add some global response intercepters
http.interceptors.response.use(function (response) {
  // For successes just continue as normal
  return response;

}, function (error) {
  // If we have a 404 redirect to the error page replacing the history
  if (error.response.status === 404) {
    return router.replace({ name: 'notfound' });
  }

  return Promise.reject(error);
});

export default http;

Upvotes: -1

Leo
Leo

Reputation: 13858

You need to set a route for 404 page and then redirect unmatched routes to it. I use a router.redirect after the map to do such things.

router.map({
  '/': { name: 'home', component: HomePage },
  '/foo/:id': {name: 'foo-show', component: FooShowPage},
  '/404': {name: 'not-found', component: NotFound}
})

router.redirect({
    '*': '/404'
})

All routes that are NOT listed in the map will then be redirected to /404

Upvotes: 6

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