> For the complete documentation index, see [llms.txt](https://help.diarkis.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.diarkis.io/diarkis-modules/notifier/setup-server.md).
# Notifier モジュールをサーバーでセットアップする
## 概要
Notifier モジュールは、TCP、UDP サーバー上でセットアップをすることが可能です。
Notifier モジュールを利用する際は HTTP 以外すべてのサーバーでセットアップする必要があります。
## セットアップ
クライアントにビルトイン・コマンドを公開するには、 diarkisexec パッケージを利用してセットアップできます。
以下の様にサーバーの main 関数に追加します。以下は UDP サーバーでセットアップするサンプルです。diarkisexec の setup 関数は `diarkisexec.StartDiarkis()` を呼ぶ前に実行する必要があります。
また、`diarkisexec.SetupNotificationService(name, interval, callback)` にてメッセージを一斉送信する間隔や内容を設定する必要があります。
詳細は [diarkisexec の API リファレンス](https://docs.diarkis.io/docs/server/current/diarkis/diarkisexec/index.html)を参照して下さい。
```go
package main
import "github.com/Diarkis/diarkis/diarkisexec"
func main() {
logConfigPath := "/configs/shared/log.json"
meshConfigPath := ""
diarkisexec.SetupDiarkis(logConfigPath, meshConfigPath, &diarkisexec.Modules{
Notifier: &diarkisexec.Options{},
})
diarkisexec.SetupNotificationService("Notification", 60, handleNotification)
diarkisexec.SetupDiarkisUDPServer("/configs/udp/main.json")
diarkisexec.StartDiarkis()
}
func handleNotification() (*diarkisexec.Notification, error) {
// Retrieve notification data from a database by the current time
notificationData := someDatabase.GetNotificationDataByCurrentTime(year, month, date)
if notificationData == nil {
// No notification data to send out
return nil, nil
}
n := &diarkisexec.Notification{}
n.ID = notificationData.ID
n.Name = notificationData.Name
// Ver is used by the client to identify the message when received.
n.Ver = notificationData.Ver
// Cmd is used by the client to identify the message when received.
n.Cmd = notificationData.Cmd
n.Message = []byte("Notification message says 'Hello from the server'")
// TTL is in seconds to indicate the availability of the notification data.
// The notification will be available for the not-connected-clients for the duration of TTL and
// will be sent to the clients when they connect before TTL expires.
n.TTL = int64(60 * 60) // one hour
return n, nil
}
```
---
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