Extract All File Names from a .rar or .zip File in Node.js

Question

I have an express route, that uploads files, that are sent to the server via formData.

Supposing the file is a .rar or .zip file, my goal is to extract all file names, that is inside this zipped folder or it's subfolders.

This is how my express route currently looks like:

module.exports = async (req, res) => {
    try {
        const busboy = new Busboy({ headers: req.headers })
        busboy.on('finish', async () => {
            const fileData = req.files.file
            console.log(fileData)
            // upload file
            // send back response
        })
        req.pipe(busboy)
    } catch (err) { return response.error(req, res, err, 'uploadProductFile_unexpected') }
}

Here is what the console.log(fileData) looks like:

{
    data:
        <Buffer 52 61 72 21 1a 07 01 00 56 0c 22 93 0c 01 05 08 00 07 01 01 8d d6 8d 80 00 85 76 33 e4 49 02 03 0b fc d4 0d 04 b1 8c 1e 20 bc 86 da 2e 80 13
    00 2b 66 ... >,
    name: 'filename.rar',
    encoding: '7bit',
    mimetype: 'application/octet-stream',
    truncated: false,
    size: 224136
}

Inside filename.rar are a few files like texture.png and info.txt. And my goal is to fetch those names.

Answer 1

You should be able to do this with the .files function available using JSZip.

var fs = require("fs");
var JSZip = require("jszip");

// read a zip file
fs.readFile("project.zip", function(err, data) {
    if (err) throw err;
    JSZip.loadAsync(data).then(function (zip) {
      files = Object.keys(zip.files);
      console.log(files);
    });
});

is an example of one such solution, courtesy of this tutorial. You should be able to use a similar function on your file from the req request.