goでChatworkにメッセージを送るサンプル

package main

import (
	"net/http"
	"net/url"
	"strings"
)

func main() {
	roomID := "xxxxxxxxxx"
	apiUrl := "https://api.chatwork.com/v2/rooms/" + roomID + "/messages"
	apiToken := "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
	ChatworkMessagePost(apiUrl, apiToken, "testmessage")
}

func ChatworkMessagePost(apiUrl, apiToken, message string) error {
	values := url.Values{}
	values.Set("body", message)

	req, err := http.NewRequest(
		"POST",
		apiUrl,
		strings.NewReader(values.Encode()),
	)

	if err != nil {
		return err
	}

	req.Header.Set("X-ChatWorkToken", apiToken)
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	client := &http.Client{}
	resp, err := client.Do(req)
	if err != nil {
		return err
	}

	defer resp.Body.Close()

	return err
}