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I am trying to do the followings:

  • use JSZip.loadAsync to read a zip file
  • update some files inside the zip file
  • generate an updated zip file and download

Here is an example of my code:

async function updatezipfile(){
 var zip = await JSZip.loadAsync('oldfile.zip');
 zip.forEach(function (relativePath, zipEntry) {
   if (zipEntry.name.indexOf('abc') > -1) {
      //update the file
      zip.file(relativePath, updatedcontent);
   }

 zip.generateAsync({ type: "blob" }).then(function (blob) {
     saveAs(blob, 'newfile.zip');
  });
    
}

The structure of oldfile.zip is:

  • abc_1.txt
  • abc_2.txt
  • abc_3.txt
  • xyz.txt

The problem is - 'zip.file(relativePath, updatedcontent)' is updating the zip file correctly(I think), but the new file that 'zip.generateAsync' generates is not updated.

I believe it should be something simple but I just have no idea. Your help will be much appreciated

Cheers

I have tried putting 'zip.generateAsync' in different location, using Promise and counter but none of them works. See this request

JamesinHaven
  • 1
  • 1

0 Answers0