How do you serve a file for download with AngularJS or Javascript?

You can do something like this using Blob.

<a download="content.txt" ng-href="{{ url }}">download</a>

in your controller:

var content = 'file content for example';
var blob = new Blob([ content ], { type : 'text/plain' });
$scope.url = (window.URL || window.webkitURL).createObjectURL( blob );

in order to enable the URL:

app = angular.module(...);
app.config(['$compileProvider',
    function ($compileProvider) {
        $compileProvider.aHrefSanitizationWhitelist(/^\s*(https?|ftp|mailto|tel|file|blob):/);
}]);

Please note that

Each time you call createObjectURL(), a new object URL is created, even if you've already created one for the same object. Each of these must be released by calling URL.revokeObjectURL() when you no longer need them. Browsers will release these automatically when the document is unloaded; however, for optimal performance and memory usage, if there are safe times when you can explicitly unload them, you should do so.

Source: MDN

Just click the button to download using following code.

in html

<a class="btn" ng-click="saveJSON()" ng-href="{{ url }}">Export to JSON</a>

In controller

$scope.saveJSON = function () {
			$scope.toJSON = '';
			$scope.toJSON = angular.toJson($scope.data);
			var blob = new Blob([$scope.toJSON], { type:"application/json;charset=utf-8;" });			
			var downloadLink = angular.element('<a></a>');
                        downloadLink.attr('href',window.URL.createObjectURL(blob));
                        downloadLink.attr('download', 'fileName.json');
			downloadLink[0].click();
		};

Try this

<a target="_self" href="mysite.com/uploads/ahlem.pdf" download="foo.pdf">

and visit this site it could be helpful for you :)

http://docs.angularjs.org/guide/

This can be done in javascript without the need to open another browser window.

window.location.assign('url');

Replace 'url' with the link to your file. You can put this in a function and call it with ng-click if you need to trigger the download from a button.