Leveraging $cookies and $stateChangeStart to verify if the sessionID surpasses the maximum callstack limit

Question

Leveraging $cookies and $stateChangeStart to verify if the sessionID surpasses the maximum callstack limit

I'm encountering an issue and seeking some guidance. In my Angular application, I want to intercept every state change and redirect the user back to the login page if they are not authenticated. I am storing their encrypted sessionID in a cookie, checking if the cookie is undefined, and then directing the user accordingly. I plan to utilize the toState and toParams arguments in the future for user roles, but for now, let's focus on the current task.

Any advice or feedback would be greatly appreciated. Thank you in advance!

.run(($rootScope, $state, $cookies) => {
    $rootScope.$on('$stateChangeStart', (evt, toState, toParams) => {
        if(!$cookies.get('SessionID')){
            evt.preventDefault();
            $state.go('login');
        }
    })
})

javascript angularjs cookies

Answer 1

Answer №1

If you find yourself executing this code on every state change, be cautious as it may result in an infinite loop. To address this issue and implement a more organized approach, consider the following code snippet:

.run(($rootScope, $state, $cookies) => {
      $rootScope.$on('$stateChangeStart', (evt, toState, toParams) => {
            if(!$cookies.get('SessionID'))
               {
                if (toState.name !== "login") {
                evt.preventDefault();
                $state.go('login');
               }
            }
        })
  })

This initial code snippet will set you on the right path. However, as you progress, you may realize the need to grant access to certain states without relying on cookies or authentication. One efficient way to handle this is by defining a custom property for each state. For instance, when configuring your states, include something similar to the following:

.state('home', {url: '/home', templateUrl: 'views/home.html', authRequired: false}) 
.state('someSecureUrl', {url: '/someSecure.url', templateUrl: 'views/someSecureUrl.html', authRequired: true})

Subsequently, adjust the above code like so:

.run(($rootScope, $state, $cookies) => {
          $rootScope.$on('$stateChangeStart', (evt, toState, toParams) => {
                if(!$cookies.get('SessionID')  && toState.authRequired)
                   {
                    evt.preventDefault();
                    $state.go('login');
                }
            })
      })

Alternatively, consider implementing a resolve function within your states for a more streamlined solution.

Answer 2

If you find yourself executing this code on every state change, be cautious as it may result in an infinite loop. To address this issue and implement a more organized approach, consider the following code snippet:

.run(($rootScope, $state, $cookies) => {
      $rootScope.$on('$stateChangeStart', (evt, toState, toParams) => {
            if(!$cookies.get('SessionID'))
               {
                if (toState.name !== "login") {
                evt.preventDefault();
                $state.go('login');
               }
            }
        })
  })

This initial code snippet will set you on the right path. However, as you progress, you may realize the need to grant access to certain states without relying on cookies or authentication. One efficient way to handle this is by defining a custom property for each state. For instance, when configuring your states, include something similar to the following:

.state('home', {url: '/home', templateUrl: 'views/home.html', authRequired: false}) 
.state('someSecureUrl', {url: '/someSecure.url', templateUrl: 'views/someSecureUrl.html', authRequired: true})

Subsequently, adjust the above code like so:

.run(($rootScope, $state, $cookies) => {
          $rootScope.$on('$stateChangeStart', (evt, toState, toParams) => {
                if(!$cookies.get('SessionID')  && toState.authRequired)
                   {
                    evt.preventDefault();
                    $state.go('login');
                }
            })
      })

Alternatively, consider implementing a resolve function within your states for a more streamlined solution.

Leveraging $cookies and $stateChangeStart to verify if the sessionID surpasses the maximum callstack limit

Answer №1

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