Gunzip using request :. For tar archives, there is Isaacs' tar module , which is used by npm. Edit 2: Updated answer as zlib doesn't support the zip format. This will only work for gzip. I tried a few of the nodejs unzip libraries including adm-zip and unzip, then settled on extract-zip which is a wrapper around yauzl.
Seemed the simplest to implement. Design principles:. I found success with the following, works with. I was looking forward this for a long time, and found no simple working example, but based on these answers I created the downloadAndUnzip function. Checkout gunzip-file. If you don't need to put multiple files into archive, but rather compress one file or just a string contents, then zlib.
You can simply extract the existing zip files also by using "unzip". It will work for any size files and you need to add it as a dependency from npm. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Simplest way to download and unzip files in Node. Ask Question. Asked 9 years, 7 months ago. Active 4 months ago. Viewed k times.
Improve this question. Lance Pollard Lance Pollard Add a comment. Active Oldest Votes. It's October 26th, to be exact. Not as great for streaming. Well documented. Works well. Makes sense. Pros : Why do I think it's the best? Just includes a ton of stuff that's not related to unzipping Reads the whole file by chunk, which is fine , not just random seeks.
Improve this answer. Is nobody else surprised that in there is no built-in function that allows you to extract a. You might want to add that streaming a zip is technically an invalid use of a zip file. Let's say your zip had 3 files A,B,C. Instead of writing the entire zip pkzip just adds new A to the end of the file and then puts a new central directory at the end. So if you stream you'll get 2 A files one of them invalid. Felipe Hooray!
Almost and it is still painful to deal with zip files in node! Show 3 more comments. Checkout adm-zip. The library allows you to: decompress zip files directly to disk or in-memory buffers compress files and store them to disk in.
Dr1Ku 2, 3 3 gold badges 44 44 silver badges 52 52 bronze badges. No END header found" with cygwin zipped file. Can we unzip file at server side also with this module? I get this error using the adm-zip package, that's unworkable for me - github. It cannot unzip large file. Show 2 more comments. Linus Thiel Linus Thiel 37k 9 9 gold badges silver badges 99 99 bronze badges. Neither of these examples work. You seem to be misunderstanding the question. This is due to the fact that buffers cannot be resized.
I suggest you to pipe the response to a fs stream in case of big files, otherwise you will full fill your memory in a blink! You should keep your data in memory only the time you really need it , and then stream to the csv parser.
If you want to keep all your data in memory you can replace the csv parser method fromPath with from that takes a buffer instead and in getData return directly unzipped. If you need to read bigger files, and your zip file contains only one file, you can use funzip instead of unzip :.
Unzip needs to seek in the. In that case you have to save the file temporarily node-temp comes in handy. November 16, Javascript Leave a comment. The hub server side code is stored in a class called Hooking.
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