notiConfig := NotificationClient.Config{}
	rawData, err := ioutil.ReadFile("./conf/notification.conf")
	err = json.Unmarshal(rawData, &notiConfig)
	if err != nil {
		log.Println("Error when read notification config >>> remove file")
		return nil
	}

	notiClient := NotificationClient.NewNotificationHelperFCM(notiConfig)

Sync

Sync add only changed values to object. Usually use when updating fields of record.


type UpdateUserRequest struct {
    Name *string
}

type User struct {
    ID   string
    Name string
    Age  int
    School string
    ...
}

func UpdateUser(req UpdateUserRequest, id string) (res User) {
    user := model.GetUser(iD)
    
    common.Sync(req,&user)
    // user will have new value of req.Name and keep others values unchange
    
    _ = model.Update(user)
    ...
}

Validation

Valid struct and return error if there is any.

type User struct {
    Name string `valid:"Required"`
    Age  int     `valid:"Required"`
}

req := User{}

if err := common.CheckRequireValid(req); err != nil {
		return nil, err
}

// this will return error that required Age and Name value in req object

Map to struct

Map value in map[string]string to struct


type variable struct {
    ID  string
}

vars := mux.Vars(r)
if err := common.MapStruct(vars, variable); err != nil {
	return err
}