Securing a single component within a named view router in Vue.js

Question

Securing a single component within a named view router in Vue.js

Within my routes configuration, I have a named view route set up:

let routes = [
    {
        name: "home",
        path: '/',
        components: {
            default: Home,
            project: ProjectIndex
        }
    }
]

The goal is to secure access to the "project" route based on user roles, while ensuring the default Home route remains accessible to all users.

To achieve this, I am implementing the following code snippet within the ProjectIndex component:

beforeRouteEnter (to, from, next) {

    var user = Spark.state.user;

    if(user.current_role == 'admin' || user.current_role == 'owner'){
        next();
    }

}

An issue arises as this logic is being applied not only to the ProjectIndex component but also affecting the Home component unintentionally.

This situation has made me realize that achieving such basic functionality in Vue js should ideally be simpler.

Upon calling console.log(to), I receive information about the route but no indication of which Component will be rendered. This obstacle has led me to seek assistance. Kindly provide guidance.

javascript vue.js babeljs vue-router

Answer 1

Answer №1

Learn how to implement lazy loading with the following code snippet.

// Function for checking conditions and importing components with lazy loading support
function check_condition(name_component) {
    if (name_component === 'Project') { 
      const user = store.state.user

      if (user.current_role == 'admin' || user.current_role == 'owner') {
        return () => import(`@/components/${name_component}.vue`)
      }
      return
    }
    return () => import(`@/components/${name_component}.vue`)
}

export default new Router({
    routes: [
        {
            path: '/',
            name: 'home',
            components: {
                default: check_condition('Home'),
                project: check_condition('Project')
            }
        },
        {
            path: '/about',
            name: 'about',
            component: check_condition('About')
        }
    ]
})

While the above method is effective, there are multiple approaches you can take based on your needs.

If the previous approach doesn't suit your requirements, consider the alternative below:

Assuming your Vuex store state includes a 'user' field with values 'admin' or 'visitor', and you want to display the settings_button component only for 'admin':

computed: {
  should_show_settings_button () {
    return this.$store.state.user === 'admin'
  }
}

<template v-if="should_show_settings_button">
  <router-view name="settings_button"></router-view>
</template>

Answer 2

Learn how to implement lazy loading with the following code snippet.

// Function for checking conditions and importing components with lazy loading support
function check_condition(name_component) {
    if (name_component === 'Project') { 
      const user = store.state.user

      if (user.current_role == 'admin' || user.current_role == 'owner') {
        return () => import(`@/components/${name_component}.vue`)
      }
      return
    }
    return () => import(`@/components/${name_component}.vue`)
}

export default new Router({
    routes: [
        {
            path: '/',
            name: 'home',
            components: {
                default: check_condition('Home'),
                project: check_condition('Project')
            }
        },
        {
            path: '/about',
            name: 'about',
            component: check_condition('About')
        }
    ]
})

While the above method is effective, there are multiple approaches you can take based on your needs.

If the previous approach doesn't suit your requirements, consider the alternative below:

Assuming your Vuex store state includes a 'user' field with values 'admin' or 'visitor', and you want to display the settings_button component only for 'admin':

computed: {
  should_show_settings_button () {
    return this.$store.state.user === 'admin'
  }
}

<template v-if="should_show_settings_button">
  <router-view name="settings_button"></router-view>
</template>

Answer 3

Answer №2

To verify the URL, you can follow these steps:

beforeRouteEnter (to, from, next) {
  if(to.pathname !== '/') {
      //perform your validation here
  }
  else {
       next();
  }
}

For a more intricate approach, consider checking an array of routes based on component names.

let routesObjects = routes.reduce((obj, route) => { obj[route.path] = route.name; return obj; }, {});

beforeRouteEnter (to, from, next) {
    let path = to.pathname;
    if(routesObjects.hasOwnProperty(to) && routesObjects[to] !== 'home') {
        //perform your check here
    }
    else {
         next();
    }
}

If you have multiple components with the same pathname, you can use a combination of the beforeEach hook and meta.

Add a meta tag to your component

routes: [
    { name: 'home', path: '/', meta: { isHome: true } }
]

Then proceed with the validation process

router.beforeEach((to, from, next) => {
  if(to.meta.isHome !== undefined && to.meta.isHome) { next(); }
  else { //perform your validation here }
})

Answer 4

To verify the URL, you can follow these steps:

beforeRouteEnter (to, from, next) {
  if(to.pathname !== '/') {
      //perform your validation here
  }
  else {
       next();
  }
}

For a more intricate approach, consider checking an array of routes based on component names.

let routesObjects = routes.reduce((obj, route) => { obj[route.path] = route.name; return obj; }, {});

beforeRouteEnter (to, from, next) {
    let path = to.pathname;
    if(routesObjects.hasOwnProperty(to) && routesObjects[to] !== 'home') {
        //perform your check here
    }
    else {
         next();
    }
}

If you have multiple components with the same pathname, you can use a combination of the beforeEach hook and meta.

Add a meta tag to your component

routes: [
    { name: 'home', path: '/', meta: { isHome: true } }
]

Then proceed with the validation process

router.beforeEach((to, from, next) => {
  if(to.meta.isHome !== undefined && to.meta.isHome) { next(); }
  else { //perform your validation here }
})

Securing a single component within a named view router in Vue.js

Answer №1

Answer №2

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