Leveraging AngularJS to retrieve data from the Wikipedia API

Question

Leveraging AngularJS to retrieve data from the Wikipedia API

I'm working on my AngularJS project and I need to pull some data from Wikipedia. However, due to CORS restrictions, I am unable to access the information directly in Angular.

$scope.wikipediaData =  $http.get('http://es.wikipedia.org/w/api.php?titles='+$scope.country.name.toLowerCase()+'&rawcontinue=true&action=query&format=json&prop=extracts');

Although the call is being made and I can see it in firebug, when I try to open the URL in a new tab, I am able to view the JSON response.

I have noticed in firebug that CORS needs to be activated, but I am struggling to find a solution despite trying various methods suggested on sites like StackOverflow.

Can anyone offer some guidance?

Thank you

javascript angularjs cors wikipedia-api

Answer 1

Answer №1

To bypass the CORS issue, one can utilize JSONP.

Essentially, JSONP requires server support to encapsulate the returned JSON within a callback function that you specify. Angular will automatically handle this process for you.

Simply append &callback=JSON_CALLBACK to your URL and employ $http.jsonp.

Feel free to check out the demonstration below and on jsfiddle.

(Note: The data retrieved from Wikipedia may not align with your specific requirements.)

var app = angular.module('myApp', []);

app.factory('wikiService', function($http) {
      
    var wikiService = {
        get: function(country) {
            return $http.jsonp('http://es.wikipedia.org/w/api.php?titles=' + country.name.toLowerCase() + '&rawcontinue=true&action=query&format=json&prop=extracts&callback=JSON_CALLBACK');
        }
    };
    
    return wikiService;
});
    
app.controller('MainController', function($scope, wikiService) {

    wikiService.get({name: 'Germany'}).then(function(data) {
        console.log(data);
        $scope.wikiData = data.data;
    });
      
});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="MainController">
    <pre ng-bind="wikiData | json"></pre>
</div>
</div>

Answer 2

To bypass the CORS issue, one can utilize JSONP.

Essentially, JSONP requires server support to encapsulate the returned JSON within a callback function that you specify. Angular will automatically handle this process for you.

Simply append &callback=JSON_CALLBACK to your URL and employ $http.jsonp.

Feel free to check out the demonstration below and on jsfiddle.

(Note: The data retrieved from Wikipedia may not align with your specific requirements.)

var app = angular.module('myApp', []);

app.factory('wikiService', function($http) {
      
    var wikiService = {
        get: function(country) {
            return $http.jsonp('http://es.wikipedia.org/w/api.php?titles=' + country.name.toLowerCase() + '&rawcontinue=true&action=query&format=json&prop=extracts&callback=JSON_CALLBACK');
        }
    };
    
    return wikiService;
});
    
app.controller('MainController', function($scope, wikiService) {

    wikiService.get({name: 'Germany'}).then(function(data) {
        console.log(data);
        $scope.wikiData = data.data;
    });
      
});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="MainController">
    <pre ng-bind="wikiData | json"></pre>
</div>
</div>

Leveraging AngularJS to retrieve data from the Wikipedia API

Answer №1

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