ZipFS Question

[SpiritedDusty]

In the wiki it says that ZipFS accepts a buffer for zip_data. How do I go about creating a buffer from lets say an xhr request? Theres probably an obvious answer that I'm not seeing but, I can't figure out how to make a buffer.

[jvilk]

Thanks for the question. There are two ways:

1. Create an XmlHttpRequest file system and use readFile to get the item as a Buffer.
2. Use the browser's XHR API to get the file as an ArrayBuffer, and then call new Buffer(data) (a DataView works too).

[jvilk]

Note that by default, BrowserFS will only expose Buffer as a global if you run BrowserFS.install(window);.

If you don't want Buffer to be a global, then you can do the following:

// This seems insane, but in node require('buffer').Buffer === Buffer
var Buffer = BrowserFS.BFSRequire('buffer').Buffer;
// where 'data' is the ArrayBuffer containing the zip file's contents
var zipfile = new Buffer(data);

[SpiritedDusty]

Oh I see. I'm using BrowserFS with emsceipten so I didn't have Buffer as a global. That was the thing that was throwing me off. Thanks for the help!

[jvilk]

No problem. Let me know if you have any further questions!