Google Translator API.

<!DOCTYPE html>
<html>

  <head>
  <script data-require="angular.js@*" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.3/angular.min.js"></script>
    <script src="script.js"></script>
  </head>

  <body ng-app="app" ng-controller="sample">
    <button ng-click="test()">Request data</button>
    <br />

 {{jsonString}}




  


  </body>

</html>

angular.module('app', [])
.controller('sample', function ($scope, $http) {
 $scope.method = 'POST';
  $scope.url = 'https://translation.googleapis.com/language/translate/v2?key=AIzaSyA1bHYc3VOCxotWBY5T61z31C91xgl4Kck';
   $scope.data = {
         	"q" :"Search",
      		"source": "en",
      		"target": "es"	 
        };
      $scope.header =   {'Content-Type': 'application/json'};
    
      $scope.test = function() {
        var source = {
        "header": {
          "Home": "Home",
          "Join": "Join",
          "Login": "Login",
          "Favorites": "Favorites",
          "Signout": "Signout",
          "Hi": "Hi",
          "Wishlist": "Wishlist",
          "Cart": "Cart",
          "Search": "Search"
        },
      }
       $scope.sourceArray = source;
      angular.forEach(source, function(value, key) {
        var outerObjKey = key;
        var outerArr= source[key];
         angular.forEach(outerArr, function(value, key) {
             
                  var innerObjKey = key;
                    var data = {
            	"q" :value,
          		"source": "en",
          		"target": "es"	 
            };
            $scope.fetch(data,outerObjKey,innerObjKey,source)
         })
       
      });
    }
    
    
     $scope.fetch = function(dataToChange,outerKey,innerKey,scrArr) {
    $http({method: $scope.method, url: $scope.url,data:dataToChange,headers:$scope.header})
      .success(function(data, status) {
        $scope.status = status;
        $scope.sourceArray[outerKey][innerKey] = data.data.translations[0].translatedText;
        console.log(JSON.stringify($scope.sourceArray));
        $scope.jsonString = JSON.stringify($scope.sourceArray);
      })
      .error(function(data, status) {
        $scope.status = status;
        $scope.data = "Request failed";
    });
  };
});