Node: Downloading a zip through Request, Zip being corrupted

user_177414 0
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I'm using the excellent Request library for downloading files in Node for a small command line tool I'm working on. Request works perfectly for pulling in a single file, no problems at all, but it's not working for ZIPs.

For example, I'm trying to download the Twitter Bootstrap archive, which is at the URL:

http://twitter.github.com/bootstrap/assets/bootstrap.zip

The relevant part of the code is:

var fileUrl = "http://twitter.github.com/bootstrap/assets/bootstrap.zip";
var output = "bootstrap.zip";
request(fileUrl, function(err, resp, body) {
  if(err) throw err;
  fs.writeFile(output, body, function(err) {
    console.log("file written!");
  }
}

I've tried setting the encoding to "binary" too but no luck. The actual zip is ~74KB, but when downloaded through the above code it's ~134KB and on double clicking in Finder to extract it, I get the error:

Unable to extract "bootstrap" into "nodetest" (Error 21 - Is a directory)

I get the feeling this is an encoding issue but not sure where to go from here.

node.js javascript
2 Answers

I was searching about a function which request a zip and extract it without create any file inside my server, here is my TypeScript function, it use JSZIP module and Request: 

let bufs : any = [];
let buf : Uint8Array;
request
    .get(url)
    .on('end', () => {
        buf = Buffer.concat(bufs);

        JSZip.loadAsync(buf).then((zip) => {
            // zip.files contains a list of file
            // chheck JSZip documentation
            // Example of getting a text file : zip.file("bla.txt").async("text").then....
        }).catch((error) => {
            console.log(error);
        });
    })
    .on('error', (error) => {
        console.log(error);
    })
    .on('data', (d) => {
        bufs.push(d);
    })
user_61456110
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