Compress File in Golang

package main

import (
    "compress/gzip"
    "fmt"
    "os"
)

func main() {

    zipFile, err := os.Create("data.zip")
    if err != nil {
        fmt.Println(err)
    }

    zipWriter := gzip.NewWriter(zipFile)
    defer zipWriter.Close()

    _, err = zipWriter.Write([]byte("nilpointer.net"))
    if err != nil {
        fmt.Println(err)
    }

}