I am very new to angularJS. I am searching for accessing services from RESTful API, but I didn't get any idea. How can I do that?
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For instance your json looks like this : {"id":1,"content":"Hello, World!"}
You can access this thru angularjs like so:
angular.module('app', [])
.controller('myApp', function($scope, $http) {
$http.get('http://yourapp/api').
then(function(response) {
$scope.datafromapi = response.data;
});
});
Then on your html you would do it like this:
<!doctype html>
<html ng-app="myApp">
<head>
<title>Hello AngularJS</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.min.js"></script>
<script src="hello.js"></script>
</head>
<body>
<div ng-controller="myApp">
<p>The ID is {{datafromapi.id}}</p>
<p>The content is {{datafromapi.content}}</p>
</div>
</body>
</html>
This calls the CDN for angularjs in case you don't want to download them.
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.min.js"></script>
<script src="hello.js"></script>
Hope this helps.
Welcome to the wonderful world of Angular !!
I am very new to angularJS. I am searching for accessing services from RESTful API but I didn't get any idea. please help me to do that. Thank you
There are two (very big) hurdles to writing your first Angular scripts, if you're currently using 'GET' services.
First, your services must implement the "Access-Control-Allow-Origin" property, otherwise the services will work a treat when called from, say, a web browser, but fail miserably when called from Angular.
So, you'll need to add a few lines to your web.config file:
<configuration>
...
<system.webServer>
<httpErrors errorMode="Detailed"/>
<validation validateIntegratedModeConfiguration="false"/>
<!-- We need the following 6 lines, to let AngularJS call our REST web services -->
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*"/>
<add name="Access-Control-Allow-Headers" value="Content-Type"/>
</customHeaders>
</httpProtocol>
</system.webServer>
...
</configuration>
Next, you need to add a little bit of code to your HTML file, to force Angular to call 'GET' web services:
// Make sure AngularJS calls our WCF Service as a "GET", rather than as an "OPTION"
var myApp = angular.module('myApp', []);
myApp.config(['$httpProvider', function ($httpProvider) {
$httpProvider.defaults.useXDomain = true;
delete $httpProvider.defaults.headers.common['X-Requested-With'];
}]);
Once you have these fixes in place, actually calling a RESTful API is really straightforward.
function YourAngularController($scope, $http)
{
$http.get('http://www.iNorthwind.com/Service1.svc/getAllCustomers')
.success(function (data) {
//
// Do something with the data !
//
});
}
You can find a really clear walkthrough of these steps on this webpage:
Good luck !
Mike
Just to expand on $http (shortcut methods) here: http://docs.angularjs.org/api/ng.$http
//Snippet from the page
$http.get('/someUrl').success(successCallback);
$http.post('/someUrl', data).success(successCallback);
//available shortcut methods
$http.get
$http.head
$http.post
$http.put
$http.delete
$http.jsonp
The $http service can be used for general purpose AJAX. If you have a proper RESTful API, you should take a look at ngResource.
You might also take a look at Restangular, which is a third party library to handle REST APIs easy.
Source: Stackoverflow.com