@ns212/cppzst
v2.0.8-1
Published
Zstd wrapper for Nodejs 14 and above
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3
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cppzst
Zstd wrapper for Nodejs
Installation
$ npm install cppzst --save
Usage
Async
compress(buffer[, zstdCompressParams], callback)
import {compress} from 'cppzst';
await compress(input);
decompress(buffer[, zstdDecompressParams], callback)
import {decompress} from 'cppzst';
await decompress(input)
Sync
compressSync(buffer[, zstdCompressParams])
const compressSync = require('cppzst').compressSync;
try {
var output = compressSync(input);
} catch(err) {
// ...
}
decompressSync(buffer[, zstdCompressParams])
const decompressSync = require('cppzst').decompressSync;
try {
var output = decompressSync(input);
} catch(err) {
// ...
}
Stream
compressStream([zstdCompressParams])
const compressStream = require('cppzst').compressStream;
const fs = require('fs');
fs.createReadStream('path/to/input')
.pipe(compressStream())
.pipe(fs.createWriteStream('path/to/output'));
decompressStream([zstdCompressParams])
const decompressStream = require('cppzst').decompressStream;
const fs = require('fs');
fs.createReadStream('path/to/input')
.pipe(decompressStream())
.pipe(fs.createWriteStream('path/to/output'));
ZSTD Params
The compress
, compressSync
and compressStream
methods may accept an optional zstdCompressParams
object to define compress level and/or dict.
const zstdCompressParams = {
level: 5, // default 1
dict: new Buffer('hello zstd'), // if dict null, left level only.
dictSize: dict.length // if dict null, left level only.
};
The decompress
, decompressSync
and decompressStream
methods may accept an optional zstdDecompressParams
object to define dict.
const zdtdDecompressParams = {
dict: new Buffer('hello zstd'),
dictSize: dict.length
};
Tests
$ npm test
License
MIT