Rudimentary Golang Hipchat Notification Sender -- no frills :)

hcNotify.go

package hipchat

import (
  "bytes"
  "encoding/json"
  "net/http"
)

type HipchatMsg struct {
  Color          string `json:"color"`
  Message        string `json:"message"`
  Notify         bool   `json:"notify"`
  Message_Format string `json:"message_format"`
}

const (
  MsgType_Err  = "problem"
  MsgType_Norm = "normal"
)

const (
  defaultMsgFormat = "text"
  htmlMsgFormat    = "html"
)

func SendMessage(url string, msg string, msgType string) (string, error) {
  return sendMessage(url, msg, msgType, defaultMsgFormat)
}

func SendMessageHtml(url string, msg string, msgType string) (string, error) {
  return sendMessage(url, msg, msgType, htmlMsgFormat)
}

func sendMessage(url string, msg string, msgType string, format string) (string, error) {
  var msgColor string
  if msgType == "problem" {
    msgColor = "red"
  } else {
    msgColor = "gray"
  }
  return send(url, HipchatMsg{Color: msgColor, Message: msg, Notify: true, Message_Format: format})
}

// ref: https://www.hipchat.com/docs/apiv2/method/send_room_notification
func send(hcUrl string, msg HipchatMsg) (string, error) {
  jsonStr, err := json.Marshal(msg)
  if err != nil {
    return "", err
  }
  req, err := http.NewRequest("POST", hcUrl, bytes.NewBuffer(jsonStr))
  if err != nil {
    return "", err
  }
  //req.Header.Set("X-Custom-Header", "myvalue")
  req.Header.Set("Content-Type", "application/json")

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

To get the hcUrl to send a message to your target room, just grab the URL listed in the tutorial next to text "send messages to this room by posting to this URL" in this image.