import (
	"gopkg.in/kothar/brotli-go.v0/dec"
	"gopkg.in/kothar/brotli-go.v0/enc"
)

func brotliRoundtrip(input []byte) []byte {
  // passing nil to get default *BrotliParams
  // careful, q=11 is the (extremely slow) default
  compressed, _ := enc.CompressBuffer(nil, input, make([]byte, 0))
  decompressed, _ := dec.DecompressBuffer(compressed, make([]byte, 0))
  return decompressed
}

import (
	"gopkg.in/kothar/brotli-go.v0/enc"
)

func brotliFastCompress(input []byte) []byte {
  params := enc.NewBrotliParams()
  // brotli supports quality values from 0 to 11 included
  // 0 is the fastest, 11 is the most compressed but slowest
  params.SetQuality(0)
  compressed, _ := enc.CompressBuffer(params, input, make([]byte, 0))
  return compressed
}

import (
	"gopkg.in/kothar/brotli-go.v0/enc"
)

func main() {
  compressedWriter,_ := os.OpenFile("data.bin.bro", os.O_CREATE|os.O_WRONLY, 0644)

  brotliWriter := enc.NewBrotliWriter(nil, compressedWriter)
  // BrotliWriter will close writer passed as argument if it implements io.Closer
  defer brotliWriter.Close()

  fileReader, _ := os.Open("data.bin")
  defer fileReader.Close()

  io.Copy(brotliWriter,fileReader)
}

import (
	"gopkg.in/kothar/brotli-go.v0/dec"
)

func main() {
  archiveReader, _ := os.Open("data.bin.bro")

  brotliReader := dec.NewBrotliReader(archiveReader)
  defer brotliReader.Close()

  decompressedWriter,_ := os.OpenFile("data.bin.unbro", os.O_CREATE|os.O_WRONLY, 0644)
  defer decompressedWriter.Close()
  io.Copy(decompressedWriter, brotliReader)
}