json setting and database

• golang

// LoadConfiguration 載入設定檔
func LoadConfiguration(filePath string) error {

	newconfig := func(newPath string) error {
		User = user{FilePath: filePath, Account: "admin", Password: "123456"}
		User.Save()
		return errors.New("Initial the new config")
	}

	if _, err := os.Stat(filePath); err != nil {
		return newconfig(filePath)
	}
	content, err := ioutil.ReadFile(filePath)
	if err != nil {
		return newconfig(filePath)
	}
	err = json.Unmarshal(content, &User)
	if err != nil {
		return newconfig(filePath)
	}
	User.FilePath = filePath
	return nil
}

// Save 儲存設定檔
func (c *user) Save() error {
	content, err := json.MarshalIndent(c, "", "    ")
	if err != nil {
		return err
	}
	err = ioutil.WriteFile(c.FilePath, content, os.ModePerm)
	if err != nil {
		return err
	}
	return nil
}

//修改並儲存設定檔
globals.User.Password = user.NewPassword
	if err := globals.User.Save(); err != nil {
		ctx.JSON(iris.Map{
			"errorCode":    1003,
			"errorMessage": fmt.Sprintf("User save fail, err: %v", err),
		})
	return
}

• json

{
    "filePath": "user.json",
    "account": "admin",
    "password": "123456"
}