Node js zip

The ZIP file is more portable and smaller in size. Each object holds important information about an item in the ZIP archive. In your readArchive. Next, you define the readZipArchive function, which is an asynchronous function.

Within the function, you create an instance of adm-zip with the path of the ZIP file you want to read. The file path is provided by the filepath parameter.

After reading the archive, you define a for On each iteration, the object is assigned to the zipEntry variable. Inside the loop, you convert the object into a string that represents the object using the Node. The console will log four objects. The other objects have been edited out to keep the tutorial brief. Each file in the archive is represented with an object similar to the one in the preceding output.

To get the filename for each file, you need to access the name property. You can now read and list each file in a ZIP archive. Require in the adm-zip module and the fs module that allows you to work with files in your updateArchive.

You require in the promise-based version of the fs module version, which allows you to write asynchronous code. When you invoke an fs method, it will return a promise. Next in your updateArchive. In the function, you create an instance of adm-zip with the ZIP archive file path in the filepath as a parameter. The readFile method returns a promise, which you resolve with the await keyword await is valid in only asynchronous functions.

Once resolved, the method returns a buffer object, which contains the file contents. Next, you invoke the addFile method from adm-zip. The method takes two arguments. The first argument is the filename you want to add to the archive, and the second argument is the buffer object containing the contents of the file that the readFile method reads. Finally, you invoke the updateZipArchive function with the Zip archive file path as an argument.

Now, confirm that the ZIP archive contains the new file. Run the readArchive. Require in the adm-zip module and the path module in your extractArchive. Still in your extractArchive. Within the function, you instantiate adm-zip with the ZIP archive file path provided by the filepath parameter.

Next, you define a template literal. The parse method returns an object. To get the name of the ZIP file without the file extension, you append the name property to the object that the parse method returns. But there are certain cases where you are required to use zip files, like uploading a function to AWS Lambda. In this article, I'll demonstrate how to use the adm-zip npm module to create and extract zip files. The adm-zip npm module exports an AdmZip class.

An instance of AdmZip corresponds to a zip file. To create a new zip file, call new AdmZip with no arguments:. There are several ways you can add files and directories to file. You can add files and directories from your file system by name using file.

For example, below is how you can add a package. You can then write the file using one of two methods: either by converting the zip file to a Node. Once you write the output. Was wondering about this, they said bulk was deprecated but didn't suggest which function to use instead. How do you specify the "source" directory? Try once the below approach: jsonworld. Dreams Dreams 4, 8 8 gold badges 39 39 silver badges 62 62 bronze badges. Worked like a charm, unlike dozen of others available on internet or mentioned above, which always generated 'zero bytes' file for me — Sergey Pleshakov.

To include all files and directories: archive. Sam Ghaderyan Sam Ghaderyan 1 1 silver badge 7 7 bronze badges. To pipe the result to the response object scenarios where there is a need to download the zip rather than store locally archive. Tayler 2, 1 1 gold badge 18 18 silver badges 21 21 bronze badges.

Raf Raf 6, 1 1 gold badge 35 35 silver badges 55 55 bronze badges. Xiaoxin Xiaoxin 4 4 bronze badges. About which node-archiver are you talking about?

FrancisPelland Umm, in the last sentence he wrote " node-archiver is the only one that seems to work " - that's what I'm refering to. I have found this small library that encapsulates what you need. Ondrej Kvasnovsky Ondrej Kvasnovsky 4, 3 3 gold badges 28 28 silver badges 39 39 bronze badges.

Is it possible to add parameters to make zip folder? You have an example to integrate zip-lib into my webpack project? Harsha Biyani Harsha Biyani 6, 9 9 gold badges 32 32 silver badges 55 55 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.

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