I try to use a http.get promise in an angularjs service, do some manipulation on the obtained collection and finally return it to a controller...
My question is how to use a $http.get() in a service in order to obtain and manipulate the result before returning it to the controller, like in the code bellow :
The PEN code
var app = angular.module('myApp', []);
app.controller('customersCtrl', ['$scope','customer',function($scope, customer) {
$scope.odds = customer.odds;
}]);
app.factory('customer', ['$http', function($http) {
var all = [{'Id':88, 'Name':"A"}, {'Id':89, 'Name':"ShoutNotBeHere"}];
var odds = [];
$http.get("http://www.w3schools.com/angular/customers.php")
.then(function(response) {
all = response.records;
});
angular.forEach(all, function(c, i) {
if (i % 2 == 1) {
odds.push(c);
}
});
return {odds: odds};
}]);<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="customersCtrl">
Odd ids from www.w3schools.com/angular/customers.php
<ul>
<li ng-repeat="c in odds">
{{ c.Id + ', ' + c.Name }}
</li>
</ul>
</div>
</body>Basically you could modified the data inside the ajax success call & then return that data from the success. But for returning data from ajax success you need to use promise pattern to return out data from $http.get. you need to return the object from the $http.get promise, & inside .then function of $http.get you could manipulate data.
Factory
app.factory('customer', ['$http', function($http) {
var all, odds = [];
var getData = function() {
return $http.get("http://www.w3schools.com/angular/customers.php")
.then(function(response) {
all = response.records;
angular.forEach(all, function(c, i) {
if (i % 2 == 1) {
odds.push(c);
}
});
return odds
});
}
return {
getData: getData
};
}]);
Controller
app.controller('customersCtrl', ['$scope','customer',function($scope, customer) {
customer.getData().then(function(response){
$scope.odds = response;
});
}]);