Bitmapdata to PNG file

[tomijs]

Hello,

 

I try to convert a bitmapdata to png file to save it on firebase storage.

to save pictures on firebase storage i need a path (ex : /data/bmd.png)

So, i need a file in my local machine 

i want upload bitmapdata to png on server (save picture), and download it  later to load picture 

after download i can use bitmapData.DrawImage to print the picture but to upload it i don't know how to do

any ideas? 

Thanks a lot 

Tomijs

  

 

[tomijs]

i tried :

        var canvas = document.getElementById("game");
        png = canvas.toDataURL("image/png");

but canvas is not fill with bitmapdata pixels