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main.go
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main.go
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/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Liqiang Lau <liqianglau@outlook.com>
* Site: https://liqiang.io
*/
package main
import (
"flag"
"fmt"
"net/http"
)
var (
port = 8080
name = ""
)
func main() {
flag.StringVar(&name, "n", name, "name for this program")
flag.IntVar(&port, "p", port, "listen port for this program")
flag.Parse()
addr := fmt.Sprintf(":%d", port)
http.HandleFunc("/", whoIAm)
if err := http.ListenAndServe(addr, nil); err != nil {
panic(err)
}
}
func whoIAm(w http.ResponseWriter, r *http.Request) {
message := fmt.Sprintf("This is %s.", name)
w.Write([]byte(message))
}