I want to zip some data into a writableStream.
the purpose is to do all in memory and not to create an actual zip file on disk.
For testing only, i'm creating a ZIP file on disk. But when I try to open output.zip i get the following error: "the archive is either in unknown format or damaged". (WinZip at Windows 7 and also a similar error on MAC)
What am I doing wrong?
const fs = require('fs'), archiver = require('archiver'), streamBuffers = require('stream-buffers'); let outputStreamBuffer = new streamBuffers.WritableStreamBuffer({ initialSize: (1000 * 1024), // start at 1000 kilobytes. incrementAmount: (1000 * 1024) // grow by 1000 kilobytes each time buffer overflows. }); let archive = archiver('zip', { zlib: { level: 9 } // Sets the compression level. }); archive.pipe(outputStreamBuffer); archive.append("this is a test", { name: "test.txt"}); archive.finalize(); outputStreamBuffer.end(); fs.writeFile('output.zip', outputStreamBuffer.getContents(), function() { console.log('done!'); }); 1 Answers
Answers 1
You are not waiting for the content to be written to the output stream.
Comment out outputStreamBuffer.end(); from your code and change it to the following...
outputStreamBuffer.on('finish', function () { fs.writeFile('output.zip', outputStreamBuffer.getContents(), function() { console.log('done!'); }); }); 
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