I'm new to angular js. Here i have the code: I receive the response data like number. In this code how i assign the response data as $scope.vote_counting. In this code does not return anything.
$scope.votes = function(){
var votes = $http({
method: "post",
url: "/getVotes",
data: { id: $scope.Id}
}).success(function(response){
});
return votes;
}
Please anyone help to this.
Simply call the $http. It does not have to be in a function
$http({
method: "post",
url: "/getVotes",
data: { id: $scope.Id }
}).then(function(response) {
//handle success
$scope.votes_counting = response.data;
}, function(error){
//handle error
});
The sort version is
$http.post("/getVotes", { id: $scope.Id }).then(function(response) {
//handle success
$scope.votes_counting = response.data;
}, function(error) {
//handle error
})
Note : You are using a POST method but a GET method seems more appropriate in your case (getVotes)
I've added a snippet, which shows the basic handling of promises. Here, I've used a service to mock a http call. The response is attached to a scope variable, which is presented in the view.
angular.module('TestApp', [])
.factory('MockHttp', function($q) {
return {
getMockData: function() {
return $q.when(['A', 'B', 'C']);
}
};
})
.controller('TestController', function($scope, MockHttp) {
$scope.res = null;
MockHttp.getMockData()
.then(function(res) {
$scope.res = res;
})
.catch(function(err) {
console.log(err);
});
});<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="TestApp">
<div ng-controller="TestController">
{{res}}
</div>
</div>The $http function does not return the response of the server. But as you have already figured out you can use the success function to get the servers response. Simply set $scope.votes value in the success function like this:
$http({
method: "post",
url: "/getVotes",
data: { id: $scope.Id}
}).success(function(response){
$scope.votes = response
});
The easiest is probably using $http.post. Note that success is deprecated in favour of then:
$scope.retrieveVotes = function(){
$http.post('/getVotes', {id : $scope.id}).then(function(response){
$scope.votes = response.data;
});
}
Also note that $http calls are asynchronous so calling retrieveVotes is also asynchronous.
$http.post() ?
$http({method: 'POST', ..) making your code more readable and concisegetVotes