Golang Gzip / Gunzip

gzip.go

import (
	"bytes"
	"compress/gzip"
)

// Compresses bytes via gzip
func GzipData(src []byte) ([]byte, error) {
	// init buffer
	var gzipBuffer bytes.Buffer
	// init gzip writer
	gzipWriter := gzip.NewWriter(&gzipBuffer)
	// write gzipped bytes into buffer
	_, err := gzipWriter.Write(src)
	if err != nil {
		return nil, err
	}
	// close writer
	err = gzipWriter.Close()
	if err != nil {
		return nil, err
	}
	// return the gzipped bytes
	return gzipBuffer.Bytes(), nil
}

// Decompresses gzipped data via gunzip into bytes
func GunzipData(gzipSrc []byte) ([]byte, error) {
	// buffer for gzipped data
	gzippedBuffer := bytes.NewBuffer(gzipSrc)
	// init reader from buffer
	gzipReader, err := gzip.NewReader(gzippedBuffer)
	if err != nil {
		return nil, err
	}
	// init unzipped buffer
	var unzippedBuffer bytes.Buffer
	_, err = unzippedBuffer.ReadFrom(gzipReader)
	if err != nil {
		return nil, err
	}
	// return the unzipped bytes
	return unzippedBuffer.Bytes(), nil
}