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LINE NotifyをGoで送る #golang #linedevday

Posted at

コマンドラインで色々試しやすいようにシェルスクリプトっぽくしてます

notify.go
//usr/bin/env go run $0 $@ ; exit

package main

import (
	"flag"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"net/url"
	"strings"
)

func main() {
	token := flag.String("token", "", "LINE notify token")
	flag.Parse()

	text := flag.Arg(0)

	if *token == "" {
		log.Fatal("not token")
	}

	if text == "" {
		log.Fatal("not text")
	}

	data := url.Values{"message": {text}}
	r, _ := http.NewRequest("POST", "https://notify-api.line.me/api/notify", strings.NewReader(data.Encode()))
	r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
	r.Header.Set("Authorization", "Bearer "+*token)
	resp, err := http.DefaultClient.Do(r)
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%s\n", body)
}

使い方はnotify.goとか言う名前で保存します。
$TOKENにはLINE Notifyのトークンをセットしておきます。

chmod +x notify.go
./notify.go -token $TOKEN hogehoge

もちろんbuildすることもできます。

go build -o notify notify.go
./notify -token $TOKEN hogehoge

GoでやるメリットとしてGOOSオプションでwindowsやlinux向けにもビルドできるので便利です。

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