Unzip file is not working

Question

Im using the following code from

https://github.com/cthackers/adm-zip/wiki/ADM-ZIP-Introduction

Whant I need is to get a zip file from request(Im using express and I've request and response) and I need to extract(unzip) it to some path(in the example for my local drive) ,where should I put the req and what Im missing here to make it work

  fn: function (req, res) {
       var admZip = require('adm-zip');

        var zip = new admZip();

        zip.addLocalFile("C://TestFolder//TestZip");

in the request body im getting the zip file(im using postman and in the body I use the binary and select a zip file)

arawind · Answer 1 · 2015-11-30T07:21:42.787

0

You could simplify the problem by using form-data instead of binary and using multer. You can get the input file by accessing req.file after which you can perform your unzip operation.

For example, you would add to your route:

var upload = require('multer')({ dest: 'uploads/' });
var admZip = require('adm-zip');


app.post('/upload-here', upload.single('file'), function (req, res, next) {
    var zip = new admZip(req.file.path);

    zip.extractAllTo("C://TestFolder//TestZip", true);
});

edited Nov 30 '15 at 07:21

answered Nov 30 '15 at 07:13

arawind

52
10

Go to the form data section, set key as 'file' (if you modify this, then modify in `upload.single('file')` too) and choose from the drop box to the right 'File' – arawind Dec 01 '15 at 06:23

Eko Junaidi Salam · Accepted Answer · 2015-12-06T06:20:04.763

Please try my snippet code :

For some information, My App structure like this below :

my path --> C:\xampp\htdocs\service

service
    |
    -- tmp\
    |
    -- app.js
    |
    -- index.html

Client Side:

<html>
<body>
<h3>ZIP Upload:</h3>
<form action="/upload_zip" method="POST" enctype="multipart/form-data">
    Select zip to upload:
    <input type="file" name="zipFile" id="zipFile">
    <input type="submit" value="Upload ZIP" name="submit">
</form>
</body>
</html>

Server Side:

Don't forget using enctype="multipart/form-data" when you post it using postman or something like that...

var express = require("express");
var fs = require("fs");
var AdmZip = require('adm-zip');
var app = express();

var multer = require("multer");
var multer_dest = multer({dest: "./tmp"}).single('zipFile');

app.get("/",function(req,res){
    console.log("Show index.html");
    res.sendFile(__dirname+"/"+"index.html");
});

app.post("/upload_zip",multer_dest,function(req,res){
    console.log(req.file);  
    var zip = new AdmZip(req.file.path); 
    zip.extractAllTo("./tmp");
    result = {
        file:req.file,
        message:"File has been extracted"
    };
    fs.unlink(req.file.path, function (e) {
        if (e) throw e;
        console.log('successfully deleted '+req.file.path);
    });
    res.end(JSON.stringify(result));
});

var server = app.listen(8081,function(){
    var host = server.address().address;
    var port = server.address().port;

    console.log("Example App Listening at http://%s:%s",host,port);
})

Unzip file is not working

2 Answers2

Client Side:

Server Side:

Output :