How to upload a BitmapData Object straight to my server?


Question

I wish to upload from my Flash Application (AS3) to imageshacks XML API. I wish to know how I can do this.

"In Flash, we must POST the data using the UrlRequest and UrlLoader classes, however we run into a limitation of the Flash API. The data property of a UrlRequest can either be a UrlVariablesByteArray object. There is no easy way to send name value pairs along with the JPG byte array. This is a big problem, because most upload applications will require a filename and other headers to accompany the raw file data"

I was hoping if someone could help me overcome the above!

Thanks all

Update

I have tried making use of this tutorial here:http://www.mikestead.co.uk/2009/01/04/upload-multiple-files-with-a-single-request-in-flash/

The problem is it's not for unsaved images, but it get images from your local machine and then uploads it to the server where the images has had a name already!

1
5
4/20/2009 11:45:21 AM

Accepted Answer

This was of great help to me: http://kitchen.braitsch.io/upload-bitmapdata-snapshot-to-server-in-as3/

You need to modify the URLRequestWrapper to insert field names and file names where needed. Here's what I've done:

bytes = 'Content-Disposition: form-data; name="' + $fieldName + '"; filename="';

It does the most formatting of headers so the server could understand it as a file upload.

By the way, if you have a BitmapData you might need to encode it to JPEG or PNG first.

Regards, Artem

4
9/18/2015 5:21:10 PM

You can send your filename data and any other data you want along with the URLRequest:

var params:URLVariables = new URLVariables();
params.id = ride.id;
params.filename = ride.map_image;
params.path = 'maps/';
var req:URLRequest = new URLRequest( ModelLocator.SERVER_URL + "/php/uploadpic.php");
req.method = URLRequestMethod.GET;
req.data = params;
fileRef.upload(req);

on the server side in php you access the extra variables as: $_REQUEST['path'] and $_REQUEST['filename'] etc


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