File Upload using angularjs

Below is working example of file upload:

http://jsfiddle.net/vishalvasani/4hqVu/

In this one function called

setFiles

From View which will update the file array in controller

or

You can check jQuery File Upload using AngularJS

http://blueimp.github.io/jQuery-File-Upload/angularjs.html

The easiest is to use HTML5 API, namely FileReader (http://jsfiddle.net/f8Hee/1/).

HTML is pretty straightforward:

<input type="file" id="file" name="file"/>
<button ng-click="add()">Add</button>

In your controller define 'add' method:

$scope.add = function(){
  var f = document.getElementById('file').files[0],
      r = new FileReader();
  r.onloadend = function(e){
    var data = e.target.result;
    //send you binary data via $http or $resource or do anything else with it
  }
  r.readAsBinaryString(f);
}

Note : readAsBinaryString() method is deprecated and readAsArrayBuffer() should be used instead.

You can achieve nice file and folder upload using flow.js.

https://github.com/flowjs/ng-flow

Check out a demo here

http://flowjs.github.io/ng-flow/

It doesn't support IE7, IE8, IE9, so you'll eventually have to use a compatibility layer

https://github.com/flowjs/fusty-flow.js

The blog post at this location (thanks to Jenny Louthan) contains a directive and some sample code. And it just works straight out of the box. The accompanying explanation is very useful.

http://uncorkedstudios.com/blog/multipartformdata-file-upload-with-angularjs

http://jsfiddle.net/vishalvasani/4hqVu/ works fine in chrome and IE (if you update CSS a little in background-image). This is used for updating progress bar:

 scope.progress = Math.round(evt.loaded * 100 / evt.total)

but in FireFox angular's [percent] data is not updated in DOM successfully,although files are uploading successfully.

I tried all alternatives that @Anoyz (Correct answer) gives... and the best solution is https://github.com/danialfarid/angular-file-upload

Some Features:

• Progress
• Multifiles
• Fields
• Old browsers (IE8-9)

It's work fine for me. You just have to pay attention to instructions.

In server-side i use NodeJs, Express 4 and Multer middleware to manage multipart request.

You may consider IaaS for file upload, such as Uploadcare. There is an Angular package for it: https://github.com/uploadcare/angular-uploadcare

Technically it's implemented as a directive, providing different options for uploading, and manipulations for uploaded images within the widget:

<uploadcare-widget
  ng-model="object.image.info.uuid"
  data-public-key="YOURKEYHERE"
  data-locale="en"
  data-tabs="file url"
  data-images-only="true"
  data-path-value="true"
  data-preview-step="true"
  data-clearable="true"
  data-multiple="false"
  data-crop="400:200"
  on-upload-complete="onUCUploadComplete(info)"
  on-widget-ready="onUCWidgetReady(widget)"
  value="{{ object.image.info.cdnUrl }}"
 />

More configuration options to play with: https://uploadcare.com/widget/configure/

Easy with a directive

Html:

<input type="file" file-upload multiple/>

JS:

app.directive('fileUpload', function () {
return {
    scope: true,        //create a new scope
    link: function (scope, el, attrs) {
        el.bind('change', function (event) {
            var files = event.target.files;
            //iterate files since 'multiple' may be specified on the element
            for (var i = 0;i<files.length;i++) {
                //emit event upward
                scope.$emit("fileSelected", { file: files[i] });
            }                                       
        });
    }
};

In the directive we ensure a new scope is created and then listen for changes made to the file input element. When changes are detected with emit an event to all ancestor scopes (upward) with the file object as a parameter.

In your controller:

$scope.files = [];

//listen for the file selected event
$scope.$on("fileSelected", function (event, args) {
    $scope.$apply(function () {            
        //add the file object to the scope's files collection
        $scope.files.push(args.file);
    });
});

Then in your ajax call:

data: { model: $scope.model, files: $scope.files }

http://shazwazza.com/post/uploading-files-and-json-data-in-the-same-request-with-angular-js/