how to convert AJAX $http call to Angular.JS

Question

For a functionality that I need, I found a really nice AJAX example. Basically it calls the Yahoo API. But I'm working with Angular.JS. So I have no clue how to convert that. Any help?

That's the AJAX function (details see this posting and this JsFiddle):

 $.ajax({
        type: 'GET',
        dataType: 'jsonp',
        jsonp: 'callback',
        jsonpCallback: 'YAHOO.Finance.SymbolSuggest.ssCallback',
        data:{
            query: request.term
        },
        url: 'http://autoc.finance.yahoo.com/autoc',
        success: function (data) {
            alert("yes");
        },
        error: function (xhr, ajaxOptions, thrownError) {
            alert(xhr.status);
            alert(thrownError);
        }
    });

So what I'm looking for, is how to convert the code above into somewhat like this. The sample should just print the return value. See this JsFiddle. Especially, I have not idea what to do with the jsonpCallback parameter. That's what I could not find in any other example.

<div ng-app='MyModule' ng-controller='DefaultCtrl'>
    {{ test() }}
</div>

JavaScript

function DefaultCtrl($scope, myService) {
    $scope.test = myService.test;
}

angular.module('MyModule', [])
    .factory('myService', function () {
        return {
            test: function () {

                $http.get("?????")

                .success(function(data, status, headers, config) {
                    return data;
                    })
                .error(function(data, status, headers, config) {
                    return "there was an error";
                })
            }
        }
    });

The intermediate solution - after all your help - looks like this. Thanks. I had to install a Chrome extension which allows cross-domain calls as long as you use the updated JsFiddle. I changed the way I'm passing the parameters to the http-get call and I also included the $q (promise) handling. The result contains a valid list from Yahoo YQL API. Just need to handle that array then.

function DefaultCtrl($log, $scope, $http, myService) {

    var promise = myService.getSuggestions('yahoo');

    promise.then(
          function(payload) { 
              $scope.test = payload;
              $log.info('received data', payload);
          },
          function(errorPayload) {
              $log.error('failure loading suggestions', errorPayload);
          });    
}

angular.module('MyModule', [])
.factory('myService', function ($http, $log, $q) {
    return {
        getSuggestions: function (symbol) {            

            var deferred = $q.defer();

            $http.get('http://d.yimg.com/autoc.finance.yahoo.com/autoc', {
                cache: true,
                params: { 
                    query: symbol,
                    callback: 'YAHOO.Finance.SymbolSuggest.ssCallback'
                }
            })
            .success(function(data) {
                deferred.resolve(data);
            })
            .error(function(msg, code) {
                deferred.reject(msg);
                $log.error(msg, code);
            });

            return deferred.promise;
        }
    }
});

Yeah, but my problem is what to do with this parameter: jsonpCallback How to put that into the http.jsonp call? — Matthias
– Matthias, Commented Jun 25, 2015 at 11:10
Yeah, solved it. The http call works and the result is ok. Just need to insert a promise and handle the return value accordingly. Thanks all for your help. — Matthias
– Matthias, Commented Jun 25, 2015 at 17:58

messerbill · Accepted Answer · 2015-06-25 11:09:35Z

4

just have a look at the docs

https://docs.angularjs.org/api/ng/service/$http

$http.get('http://autoc.finance.yahoo.com/autoc', 
  {dataType: 'jsonp', 
   jsonp: 'callback', 
   jsonpCallback: 'YAHOO.Finance.SymbolSuggest.ssCallback'}).success(function(data){ alert("yes"); });

answered Jun 25, 2015 at 11:09

messerbill

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8 Comments

Matthias Over a year ago

Thanks for the hint. I updated the JsFiddle but still does not work :(

Matthias Over a year ago

Just run the JsFiddle and you will see the error on the JavaScript console. It's somewhat about mixed HTTP and HTTPS call and a syntax error which I can not find.

Matthias Over a year ago

PS: I'm using Chrome on MacOS.

messerbill Over a year ago

this is because you try to load scripts from http to a https page. do you have loaded you angular and jquery to your harddisc locally?

Matthias Over a year ago

Nope, I only use JsFiddle. You have to use this URL: d.yimg.com/autoc.finance.yahoo.com/autoc And in this JsFiddle it works fine. hmmm

|

Keval Bhatt · Accepted Answer · 2015-06-25 11:47:21Z

0

Use Ajax call and you have to use promise

And use only test not {{test()}}

Because in your controller when you call your factory ajax function then in controller you get undefined response.

So use promise.

Service:

var demoService = angular.module('demoService', []) .service('myService',['$http', function($http) { this.getdata = function(entity){ var promise = $http({ method : 'GET', url : 'services/entity/add', data : entity, dataType: 'jsonp', jsonp: 'callback', jsonpCallback: 'YAHOO.Finance.SymbolSuggest.ssCallback', headers : { 'Content-Type' : 'application/json' }, cache : false }).then(function (response) { return response; }); return promise; }; }]);

Controller :

var demoService = angular.module('demoService', []) .controller('myctr',['$scope','myService',function($scope,myService){ myService.getdata().then(function(response){ //Success },function(response){ //Error }); }]);

now you can see your json in controller success

edited Jun 25, 2015 at 11:47

answered Jun 25, 2015 at 11:18

Keval Bhatt

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5 Comments

Matthias Over a year ago

Good idea, but I wanted to use pure Angular.JS for learning reasons. But you are right, I need to use at least a promise.

Keval Bhatt Over a year ago

k if you need any help let me know

Matthias Over a year ago

Thanks. I'm still trying to fix the fiddle with the help of the other answer.

Keval Bhatt Over a year ago

@Matthias jsfiddle.net/kevalbhatt18/84e02j4t/2 i created this but error wiil be show 404 for your URL

Matthias Over a year ago

The URL was wrong: Use this one d.yimg.com/autoc.finance.yahoo.com/autoc But then you get the HTTPS error. And you also need to add the query parameter. Just use any name like 'yahoo'

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