本文へ移動
cccskills
無料GitHub で公開

nestjs-notification

Build dual-write notification services with database persistence and FCM push delivery in NestJS. Use when creating notification entities, sending push via FCM, or implementing in-app notification feeds.

インストール方法を見る

含まれるファイル(5)

  • SKILL.md2.0 KB
  • evals/evals.json2.2 KB
  • references/implementation.md873 B
  • references/service.md2.1 KB
  • references/types.md1.5 KB

SKILL.md(原文)

インストールする前に、エージェントに与えられる指示の中身を確認できます。

NestJS Notification Architecture

Priority: P0 (CRITICAL)

Implement "Dual-Write" notification system: persist to Database (In-App) and send via FCM (Push).

Workflow: Send Notification

  1. Save to database — Persist notification entity with type enum and metadata.
  2. Check FCM token — Verify recipient valid fcmToken; skip push if missing.
  3. Send push — Call FCM inside try/catch; never let FCM failure block request.
  4. Serialize data — Convert Dates to ISO strings; keep FCM data payload flat (IDs only).

Dual-Write Service Example

See implementation examples

Structure

See implementation examples

Implementation Guidelines

  • Use Dual-Write: Save to DB first, then attempt FCM. Catch FCM errors so they don't block logic.
  • Define Granular Types: Use NotificationType Enum (e.g., APPOINTMENT_REMINDER) for frontend icon/color logic.
  • Stringify Metadata: Store routing data (IDs) as JSON string in DB, but Map to string-only Key-Values for FCM data.
  • Handle Tokens: Check for fcmToken existence before sending. Fail gracefully if missing.
  • Serialize Dates: Convert Dates to ISO strings before sending to FCM.

Anti-Patterns

  • No Generic Types: Avoid type: string. Always use Enum.
  • No Blocking FCM: Never await FCM without try/catch. It shouldn't crash request.
  • No Complex Data in Push: Keep FCM data payload flat and minimal (IDs only). Fetch details on open.

References

レビュー

まだレビューはありません。使ってみた感想をお寄せください。

同じリポジトリのスキル

概要と使いどころ

Upgrade an Android project to Android Gradle Plugin (AGP) 9. Use when migrating to AGP 9, updating Gradle build files, migrating to built-in Kotlin, or adopting the new AGP DSL.

日本語の概要は準備中です。原文の説明を表示しています。

HoangNguyen0403/agent-skills-standard5732026年10月12日 更新

Apply Clean Architecture layering, modularization, and Unidirectional Data Flow in Android projects. Use when setting up project structure, placing code in layers, configuring feature/core modules, or implementing UDF patterns; defer Compose state and ViewModel/StateFlow implementation to their specific skills.

日本語の概要は準備中です。原文の説明を表示しています。

HoangNguyen0403/agent-skills-standard5732026年10月12日 更新

Implement WorkManager and background processing correctly on Android. Use when creating Worker classes, scheduling tasks, choosing between WorkManager and Foreground Services, or setting up Hilt in workers; defer FCM and notification delivery to android-notifications.

日本語の概要は準備中です。原文の説明を表示しています。

HoangNguyen0403/agent-skills-standard5732026年10月12日 更新

Build high-performance declarative UI with Jetpack Compose. Use when writing Composable functions, optimizing recomposition, hoisting state, or working with LazyColumn and side effects; defer deep-link and navigation routing to android-navigation.

日本語の概要は準備中です。原文の説明を表示しています。

HoangNguyen0403/agent-skills-standard5732026年10月12日 更新

Migrate an Android XML View to Jetpack Compose following a structured 10-step workflow. Use when converting XML layouts to Compose, setting up Compose in an existing View-based project, or incrementally adopting Compose.

日本語の概要は準備中です。原文の説明を表示しています。

HoangNguyen0403/agent-skills-standard5732026年10月12日 更新

Write correct coroutine scopes, lifecycle collection, and dispatcher injection in Android production code. Use for suspend functions, coroutine scopes, and dispatcher mechanics; defer ViewModel StateFlow/LiveData architecture, Fragment lifecycle recipes, persistence/notifications, and unit-test recipes to their specific skills.

日本語の概要は準備中です。原文の説明を表示しています。

HoangNguyen0403/agent-skills-standard5732026年10月12日 更新

HoangNguyen0403 のスキルをすべて見る

このスキルの問題を報告する