Node module unzip file with password - node.js

Question

Im looking for node package to unzip password protected zip files.
As of now i have looked here
But the above provides functions to open the files and parses the files one by one. I require to just extract the files at one place.

Answer 1

If I understand your question correctly, and if you still are looking for an answer
In the same package check out these functions:
Unzipper File Wise Extracting Options
Method specific extract
These can help you extract the files (all or selected ones) at the desired location

Answer 2

If you want to unzip a password-protected file from a directory -
const unzipper = require("unzipper");
const unzipAndUnlockZipFile = async (filepath, password) => {
try {
const zipDirectory = await unzipper.Open.file(filepath); // unzip a file
const file = zipDirectory.files[0]; // find the file you want
// if you want to find a specific file by path
// const file = zipDirectory.files.find((f) => f.path === "filename");
const extracted = await file.buffer(password); // unlock the file with the password (password is optional, do not pass this if the file is not password-protected)
console.log(extracted.toString()); // file content
} catch (e) {
console.log(e);
}
};
const zipFilePath = "./src/application.zip";
const password = "1234";
unzipAndUnlockZipFile(zipFilePath, password);
If you want to unzip and extract the file from a buffer then the solution would look like below -
const unzipper = require("unzipper");
const unzipAndUnlockZipFileFromBuffer = async (zippedFileBase64, password) => {
try {
const zipBuffer = Buffer.from(zippedFileBase64, "base64"); // Change base64 to buffer
const zipDirectory = await unzipper.Open.buffer(zipBuffer); // unzip a buffered file
const file = zipDirectory.files[0]; // find the file you want
// if you want to find a specific file by path
// const file = zipDirectory.files.find((f) => f.path === "filename");
const extracted = await file.buffer(password); // unlock the file with the password (password is optional, do not pass this if the file is not password-protected)
console.log(extracted.toString()); // file content
} catch (e) {
console.log(e);
}
};
const zippedFileBase64 = "{{BASE64}}";
const password = "1234";
unzipAndUnlockZipFileFromBuffer(zippedFileBase64, password);