golang http 用户密码验证以及读取大文件和小文件

func readSmallFile(path string) string{
    fi,err:=os.Open(path)
    if nil{
       panic(err)
    }
    defer fi.Close()
    fd,err:=ioutil.ReadAll(fi)
    return string(fd)
}
func readBigFile(path string) {
    file,err := os.Open(path)
    if err!=nil{
      panic(err)
    }
    defer file.Close()
    bufReader := bufio.NewReader(file)
    buf := make([]byte,1024*1024*10)
    for{
        readNum,err := buffReader.Read(buf)
     if err !=nil && err != io.EOF{
          panic(err)
     }
     if readNum == 0{
           fmt.Println("read file end...")
           break
     }
    }
}
func putHttp(url,file,username,userpasswd string) int{

    client := &http.Clien{}
    fileinfo:=readSmallFile(file)
    req,err := http.NewRequest("PUT",url,strings.NewReader(fileinfo))
    if nil{
      panic(err)
      return 0
    }

    //req.SetBasicAuth(username,userpasswd)
    req.Header.Set("Authoriaztion","Bearer "+userpasswd)
    req.Header.Set("Content-Type","text/html;charset=UTF-8")
    resp,err := client.Do(req)
    if err!=nil{
      painc(err)
      return 0
    }
    body,err := ioutil.ReadAll(resp.Body)
    if err!=nil{
       panic(err)
       return 0
    }
    defer resp.Body.Close()
    fmt.Println(string(body))
    fmt.Println("statuscode==",resp.StatusCode)

    return 1

}