I have a problem which should be wasy to solve, but I just cant figure out what I am doing wrong. I receive data through an $http request.
alert(data)
gives me object object
alert(data.response)
gives me {"id":"123456","post_id":"12345"}
alert (data.response.id)
gives me undefined
My question: I want to get the ID. Why does the last expression give me undefined and not the ID? Do I have to transform the data in some way?
I am thankful for any hints!
It looks like your data.response is a string.
You use angular.fromJson to convert it to object ie :
$scope.temp = angular.fromJson($scope.data.response);
please see working demo below
var app = angular.module('app', []);
app.controller('firstCtrl', function($scope){
$scope.data = {
response:'{"id":"123456","post_id":"12345"}'
};
alert($scope.data);
alert($scope.data.response);
alert($scope.data.response.id);
$scope.temp = angular.fromJson($scope.data.response);
alert($scope.temp.id);
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="app">
<div ng-controller="firstCtrl">
</div>
</body>
var app = angular.module('myApp', []);
app.controller('list_employeesController', function($scope, $http) {
// email = $scope.email;
// psw = $scope.psw;
$http({
method: "GET",
url: "http://localhost:3000/employees",
params: {}
}).then(function mySuccess(response) {
// a string, or an object, carrying the response from the server.
$scope.myRes = response.data;
$scope.statuscode = response.status;
}, function myError(response) {
$scope.myRes = response.statusText;
});
});
Simply Here myRes has the response data to this request.
And we can display it in HTML file using expression syntax in angular
<h2> Result : {{myRes}} </h2>
var app = angular.module('myApp', []);
app.controller('student_Controller', function($scope, $http) {
$http({
method: "GET",
url: "http://localhost:8000/employees",
}).then(function mySuccess(response) {
$scope.res= response.data;
$scope.statuscode = response.status;
}, function myError(response) {
console.log("response--"+response);
});
});
Related
I want to fetch data from JSON file which is on my local machine. But I am not able to get the data. It is showing some cross domain error for $http.
Here is my code.
angular.module('myApp',[])
.controller('myCtrl', function ($scope, webtest) {
webtest.fetch().then(function (data) {
$scope.accounttype = data;
})
});
.factory('webtest', function($q, $timeout, $http) {
var Webtest = {
fetch: function(callback) {
return $timeout(function() {
return $http.get('webtest.json')
.then(function(response) {
return response.data;
});
}, 30);
}
};
return Webtest;
});
Anyone please help me how to display data from local JSON file?
Thanks in Advance.
It's very simple like
$http.get('phones/phones.json').then(function(response) {
$scope.phones = response.data;
});
Refer:http://stackoverflow.com/questions/21589340/read-local-file-in-angularjs
Don't you have an error message like "$http: is not defined" ?
I tried with a controller, this is working :
var ngApp = angular.module("ngApp", []);
ngApp.controller('myController', ['$http', function($http){
var thisCtrl = this;
this.getData = function () {
this.route = 'webtest.json';
$http.get(thisCtrl.route)
.success(function(data){
console.log(data);
})
.error(function(data){
console.log("Error getting data from " + thisCtrl.route);
});
}
}]);
If you haven't, use web developer tools (Ctrl+Shift+I in firefox).
If you haven't already done so. Try setting up a crossdomain policy for your application.
I made an httpRequest fetch some items using following code:
factory.getBanners = function() {
$http({
method: 'GET',
url: 'http://localhost:2100/v1/items/getBanners'
}).then(function successCallback(response) {
console.log(response);
return response;
});
};
In controller I handled it as following:
store.controller('bannerCtrl', ['$scope', 'productService', function($scope, productService){
$scope.init = function() {
$scope.banners = productService.getBanners();
}
$scope.init();
}]);
In front end I tried to display data using
<div ng-controller="bannerCtrl">
<div data-ng-repeat="banner in banners">
<li> {{banner.bannerAltText}} </li>
</div>
</div>
But it doesn't display anything. Neither it gives any error on console. How can I resolve this issue. Here banners is an array whose each element contains bannerAltText.
Your getBanners-function does not work the way you think it does. It returns nothing. The return statement in the then function only returns from that then-function, not from getBanners. The problem is that you are trying to use an asynchonous function in a synchronous way. Instead make getBanners return a promise:
factory.getBanners = function() {
return $http({
method: 'GET',
url: 'http://localhost:2100/v1/items/getBanners'
}).then(function successCallback(response) {
return response.data;
});
};
And use that promise in your controller:
$scope.init = function() {
productService.getBanners().then(function(banners) {
$scope.banners = banners;
});
}
$scope.init();
A return in a in .then() will be a promise, rather than the data. here is a better way to construct your code
factory.getBanners = function() {
return $http({
method: 'GET',
url: 'http://localhost:2100/v1/items/getBanners'
});
};
.
store.controller('bannerCtrl', ['$scope', 'productService', function($scope, productService){
$scope.init = function() {
productService.getBanners()
.then(function(response) {$scope.banners = response.data});
}
$scope.init();
}]);
After trying what this question ask, I'm asking again how to retrieve data from web using AngularJS in the Ionic framework.
Basically, I do what the answer says:
.factory('Advices', function($http) {
var advices = null;
$http.get('http://myurl.myext/myfile.json').success(function (data) {
advices = data;
}).error(function(error) {
console.log('error'); //even if there i print the error it prints nothing
});
//etcetera
How can I rescue that file from my server?
Please try to following code
var app = angular.module('myApp', ['ionic']);
app.controller('mainInfoFactory', ['$scope', '$http', function($scope,$http) {
$http.get("http://myurl.myext/myfile.json")
.success(function (response)
{
$scope.advices = response;
})
.error(function(data) {
alert("ERROR");
});
}]);
Here myAPP and mainInfoFactory are AngularJS application name and controller respectively.
For example : ng-app="myApp" ng-controller="mainInfoFactory"
I'm developing my first AngularJS app using the Google Docs API to pass it JSON data.
This is an example of the factory I'm using:
app.factory('Data', ['$http', 'apiKeys', function($http, apiKeys){
var googleDocs = 'https://spreadsheets.google.com/feeds/list/';
return {
news:function () {
return $http.get(googleDocs + apiKeys.googleDoc +'/1/public/values?alt=json', {cache: true});
},
updates:function () {
return $http.get(googleDocs + apiKeys.googleDoc +'/2/public/values?alt=json', {cache: true});
},
docs:function () {
return $http.get(googleDocs + apiKeys.googleDoc +'/3/public/values?alt=json', {cache: true});
}
}]);
I wanted to clean up a bit the code and decided to use services instead of making the calls in the controller itself. It works normally, but it's a pain in the ass the fact that I still need to write long $scopes because of the structure of the Google API. This is how I get the values in the controller:
app.controller('homeCt', ['$scope', 'Data', function ($scope, Data){
Data.news().success(function (data) {
$scope.totalNews = data.feed.entry.length;
});
}]);
Is there a way that I can set the factory service to pass me the data just using:
$scope.totalNews = Data.news()
Or at least removing the 'feed.entry'?
Data.news().success(function (data) {
$scope.totalNews = data.length;
});
Thank you very much!
example of service - resolve the success with the data you want
app.service('Data', ['$http', 'apiKeys', function($http, apiKeys){
var googleDocs = 'https://spreadsheets.google.com/feeds/list/';
this.news =function(){
return $http.get(googleDocs + apiKeys.googleDoc +'/1/public/values? alt=json', {cache: true})
.then(function(data){
return data.feed.entry.length;
});
}
}]);
the controller - since you already resolved the data in service hence..
app.controller('homeCt', ['$scope', 'Data', function ($scope, Data){
Data.news().then(function (data) {
$scope.totalNews = data;
});
}]);
working example
var app = angular.module('app', ['ionic'])
.service('Data', ['$http',
function($http) {
var googleDocs = 'https://spreadsheets.google.com/feeds/list/1aC1lUSxKatfxMKEy1erKDSAKgijSWOh77FDvKWhpwfg/1/public/values?alt=json';
this.news = function() {
return $http.get(googleDocs, {
cache: true
}).then(function(res) {
return res.data.feed.entry;
});
}
}
])
.controller('homeCt', ['$scope', 'Data',
function($scope, Data) {
Data.news().then(function(data) {
console.log(data);
})
}
]);
I'll give you a way of doing it, a way that I don't recommend at all (a service should not handle the scope), but for me it is the only way you have if you don't want to destroy the "async" of your ajax call :
app.factory('Data', ['$http', 'apiKeys', function($http, apiKeys){
var googleDocs = 'https://spreadsheets.google.com/feeds/list/';
return {
news:news,
updates: updates,
[...]
}
function news(scopeValue) {
$http.get(googleDocs + apiKeys.googleDoc +'/1/public/values?alt=json', {cache: true}).success(function(data){
scopeValue = data;
});
}]);
and then, call it that way in your controller :
Data.news($scope.totalNews);
want to download a JSON of beercat('bieres.json') in this.bieres
How could I do?
function() {
var app = angular.module('monStore', []);
app.service('dataService', function($http) {
this.getData = function() {
return $http({
method: 'GET',
url: 'bieres.json'
});
}
});
app.controller('StoreController', function($scope,dataService){
this.bieres = [];
dataService.getData().then(function(dataResponse) {
$scope.bieres = dataResponse.data;
});
...
});
I think it's my access by this.bieres that it's wrong,
the Json is loaded in the console, but a blank page is in result