zlib-sync

Synchronous zlib bindings for NodeJS

Originally made for JS libraries interacting with the Discord gateway, where compression requires a shared zlib context in a synchronous fashion.

Features

Synchronous, Pako-like API
Near-native performance and efficiency

Installing

zlib-sync is a native module, so it requires node-gyp to be installed, which requires Python 2.7 and a C++ compiler on your system. See the node-gyp documentation for more info. A pre-built module is planned for a future update.

After getting node-gyp set up, install zlib-sync like a normal NPM package:

npm install zlib-sync

Usage

Documentation can be found here.

var ZlibSync = require("zlib-sync");

var inflate = new ZlibSync.Inflate();

inflate.push(compressedChunk1);
inflate.push(compressedChunk2, ZlibSync.Z_SYNC_FLUSH);

if(inflate.err < 0) {
    throw new Error("zlib error: " + inflate.msg);
}

var result = inflate.result;

console.log(result.toString());

To-Do

Deflate stream support
One-time deflate/inflate support

License