How to inject data into a service without using resolve

Question

How to inject data into a service without using resolve

My goal is to retrieve data from a server and transfer it to a service before the completion of a route change:

when(
  '/detail/:id', 
  {
    templateUrl: './partials/views/detail.php',
    controller: 'detailCtrl',
    resolve: {
      init: function($route,$q,shipmentn){
        var deffered = $q.defer();

        shipmentn.getSingle($route.current.params.id).then(function(promise){
          shipmentn.data = promise.data;
          deffered.resolve(promise);
        });

        return deffered.promise;
      }
    }
  }
)

It's worth noting that I've placed this logic inside the then() function to ensure the request is complete.

However, I find it frustrating that I need to inject an additional dependency (init) into my controller and return a promise that is not utilized.

Is there a way for me to work around this issue?

javascript angularjs promise

Answer 1

Answer №1

One strategy you could use is to provide the required service to the resolve function of a deferred object in your controller after the service has loaded:

when('/detail/:id', {
  templateUrl: './partials/views/detail.php',   
  controller: function($scope,service){}, //<-- Controller with the service dependency
  resolve: {
    service: function($route,$q,shipmentn){
      var deffered = $q.defer();       
      shipmentn.getSingle($route.current.params.id).then(function(promise){
        shipmentn.data = promise.data;
        deffered.resolve(shipmentn); //<-- the deffered resolves the service
      });
      return deffered.promise;
    }
}})

Best regards,

Answer 2

One strategy you could use is to provide the required service to the resolve function of a deferred object in your controller after the service has loaded:

when('/detail/:id', {
  templateUrl: './partials/views/detail.php',   
  controller: function($scope,service){}, //<-- Controller with the service dependency
  resolve: {
    service: function($route,$q,shipmentn){
      var deffered = $q.defer();       
      shipmentn.getSingle($route.current.params.id).then(function(promise){
        shipmentn.data = promise.data;
        deffered.resolve(shipmentn); //<-- the deffered resolves the service
      });
      return deffered.promise;
    }
}})

Best regards,

Answer 3

Answer №2

In order to simply send data to the controller without storing it in the service, you can directly resolve it to the controller:

router:

when('/detail/:id', {templateUrl: './partials/views/detail.php',   controller: 'detailCtrl',resolve: {

            shipmentData: function($route,$q,shipmentn){
                return shipmentn.getSingle($route.current.params.id));
            }

        }})

service:

getSingle: function(id){
 var deferred = q.defer();

 $http.get(...).then(function(response){
  deferred.resolve(response.data);
 }

 return deferred.promise;
}

controller:

module.controller('detailController', ['shipmentData', function(shipmentData){
 ...
}]);

When accessing the controller, shipmentData will contain the data returned from response.data through http.get.

Answer 4

In order to simply send data to the controller without storing it in the service, you can directly resolve it to the controller:

router:

when('/detail/:id', {templateUrl: './partials/views/detail.php',   controller: 'detailCtrl',resolve: {

            shipmentData: function($route,$q,shipmentn){
                return shipmentn.getSingle($route.current.params.id));
            }

        }})

service:

getSingle: function(id){
 var deferred = q.defer();

 $http.get(...).then(function(response){
  deferred.resolve(response.data);
 }

 return deferred.promise;
}

controller:

module.controller('detailController', ['shipmentData', function(shipmentData){
 ...
}]);

When accessing the controller, shipmentData will contain the data returned from response.data through http.get.

How to inject data into a service without using resolve

Answer №1

Answer №2

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