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I am writing an Adobe Air app in HTML/JavaScript and I am trying to base64 encode an image so I can add it to and XML RPC request. I have tried many methods and nothing seems to work.

I see that actionscript has a Base64Encoder class that look like it would work, is there any way to utilize this in JavaScript?

user229044
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JordanW
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    http://stackoverflow.com/questions/246801/how-can-you-encode-to-base64-using-javascript – some Sep 30 '10 at 16:48

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Thanks @some for the link.

I used the btoa() function to base64 encode image data like this:

var loader = new air.URLLoader(); loader.dataFormat = air.URLLoaderDataFormat.BINARY; loader.addEventListener(air.Event.COMPLETE,function(e){ var base64image = btoa(loader.data); }); var req = new air.URLRequest('file://your_path_here'); loader.load(req);

I was trying to upload an image using metaWeblog.newMediaObject, but it turns out that the data doesn't need to be base64 encoded, so the binary value was all that was needed.

JordanW
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