wrong-way.go

func LoadGzippedJSON(r io.Reader, v interface{}) error {
    data, err := ioutil.ReadAll(r)
    if err != nil {
        return err
    }
    // oh wait, we need a Reader again.. 
    raw := bytes.NewBuffer(data)
    unz, err := gzip.NewReader(raw)
    if err != nil {
        return err
    }
    buf, err := ioutil.ReadAll(unz)
    if err != nil {
        return err
    }
    return json.Unmarshal(buf, &v)
}