main.go

func RegisterRecovery() gin.HandlerFunc {
	return func(c *gin.Context) {
		defer func() {
			if err := recover(); err != nil {
				httprequest, _ := httputil.DumpRequest(c.Request, false)
				pp.Println(err)
				m := gomail.NewMessage()
				m.SetHeader("From", "goblog@cibernomadas.es")
				m.SetHeader("To", "admin@cibernomadas.es")
				m.SetHeader("Subject", "GoBlog Error")
				m.SetBody("text/plain", fmt.Sprintf(`Hi admin,\n unexpected error has happend en GoBlog.
					Following there is the user request:\n%s
					Following there is the panic error:\n\n%s`, string(httprequest), err))

				d := gomail.Dialer{Host: "localhost", Port: 25}
				if err := d.DialAndSend(m); err != nil {
					panic(err)
				}
				c.HTML(http.StatusOK, "index", gin.H{
					"title": "Hi! GoBlog.",
					"error": "You found an error. The administrator has been notified.",
				})
			}
		}()
		c.Next()
	}
}