What is the process for resolving arguments in UI-Router's resolve function?

Question

What is the process for resolving arguments in UI-Router's resolve function?

There seems to be a gap in my understanding of UI-Router and angular's documentation, so forgive me if this seems naive, but here goes:

On http://angular-ui.github.io/ui-router/site/#/api/ui.router.state.$stateProvider, there is an example resolve function provided:

resolve: {
    myResolve1:
      function($http, $stateParams) {
        return $http.get("/api/foos/"+$stateParams.fooID);
      }
    }

I understand that the value returned by this function will be injected into the controller as "myResolve1".

What I am confused about is where the actual values for the parameters "$http" and "$stateParams" are sourced from. In other words, how does the caller determine what values to pass into this function?

javascript angularjs angular-ui-router

Answer 1

Answer №1

This brings up an interesting point, as seen in the discussion found here.

Exploring the use of IoC oriented notation with AngularJS ui-router abstract state resolve

It is recommended to utilize the IoC focused notation for better functionality.

resolve: {
    dataParent: ['$stateParams', 'ProfileService', function ($stateParams, ProfileService) {
        var username = $stateParams.username;
        return ProfileService.getProfile(username);
    }]
}

The key benefit of this approach is that it remains effective even after applying minification. Moreover, it provides clear guidelines:

there is an array containing all required dependency names - and the resolve function is specified as the final argument

Answer 2

This brings up an interesting point, as seen in the discussion found here.

Exploring the use of IoC oriented notation with AngularJS ui-router abstract state resolve

It is recommended to utilize the IoC focused notation for better functionality.

resolve: {
    dataParent: ['$stateParams', 'ProfileService', function ($stateParams, ProfileService) {
        var username = $stateParams.username;
        return ProfileService.getProfile(username);
    }]
}

The key benefit of this approach is that it remains effective even after applying minification. Moreover, it provides clear guidelines:

there is an array containing all required dependency names - and the resolve function is specified as the final argument

Answer 3

Answer №2

Incorporate whatever you would typically insert into your controller into a resolve function, which may also include other resolves. It is important to exercise caution when doing this because chaining resolves can result in a longer navigation time for the state, thus potentially slowing down the rendering of your view. For instance, an example of chaining resolves could be structured like this:

resolve: {
    loggedIn: function(auth){ return  auth.requireLoggedIn()},
    user: function(loggedIn, auth){return auth.resolveUser()}
}

The 'auth' service is a component of my angular application and as evident, 'loggedIn' must be resolved before it is utilized to load the user. Subsequently, both can then be inserted into your controller.

You have the flexibility to incorporate any Angular service, factory, filter, or resolve into the resolve section. There might be additional essential elements that I have not listed, but generally speaking, these are the components that I usually inject into a resolve. Accordingly, in response to your query, these components originate from your Angular application.

Answer 4

Incorporate whatever you would typically insert into your controller into a resolve function, which may also include other resolves. It is important to exercise caution when doing this because chaining resolves can result in a longer navigation time for the state, thus potentially slowing down the rendering of your view. For instance, an example of chaining resolves could be structured like this:

resolve: {
    loggedIn: function(auth){ return  auth.requireLoggedIn()},
    user: function(loggedIn, auth){return auth.resolveUser()}
}

The 'auth' service is a component of my angular application and as evident, 'loggedIn' must be resolved before it is utilized to load the user. Subsequently, both can then be inserted into your controller.

You have the flexibility to incorporate any Angular service, factory, filter, or resolve into the resolve section. There might be additional essential elements that I have not listed, but generally speaking, these are the components that I usually inject into a resolve. Accordingly, in response to your query, these components originate from your Angular application.

What is the process for resolving arguments in UI-Router's resolve function?

Answer №1

Exploring the use of IoC oriented notation with AngularJS ui-router abstract state resolve

Answer №2

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