How can you effectively transfer a parameter from .run to .config?

Currently, I am working on my angularjs ui-route project and have placed a variable called clientid in the .run() core function to store it in $rootScope.

However, there comes a point where I need to access this stored variable within the .config() core.

Unfortunately, I am aware that I cannot directly use the $rootScope service in the .config() core.

Therefore, my question is how can I pass the clientid variable from $rootScope to .config()? Is there another service that I could utilize for this purpose?

javascriptangularjs

Answer №1

Avoid using $rootScope as it can clutter the global scope. Instead, consider creating a constant named settings to store values used across different angular components such as in the .run block, config phase, service, or provider.

angular.module('mainModule').constant('settings', {
   clientId: 1123 //initial value
})

You have the option to overwrite this value during the config phase.

angular.module('mainModule').config(['settings', configFn])

function configFn(settings){
    //register routes here

    //other tasks

    //update clientId
    if(someValue === 1)
      settings.clientId = 'asd12';  
    else
      settings.clientId = 'asd34';  
}

Now you can access this constant within your run block

angular.module('mainModule').run(['settings', runBlock])

function runBlock(settings){
   console.log(settings);
}

Note: Using constant ensures that this value can be injected into any angular component.

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