Prez - Collectors Pool

pooling.go

// ...

bodyBuf := getBuf()
_, err := bodyBuf.ReadFrom(body)
if err != nil {
	putBuf(bodyBuf)
	jsonError(w, http.StatusInternalServerError, "problem reading request body")
	return
}

// ...

var bufPool = sync.Pool{New: func() interface{} { return new(bytes.Buffer) }}

func getBuf() *bytes.Buffer {
	if bb, ok := bufPool.Get().(*bytes.Buffer); ok {
		return bb
	}
	return new(bytes.Buffer)
}

func putBuf(b *bytes.Buffer) {
	b.Reset()
	bufPool.Put(b)
}
// ...