# RecommendationService（ロブロックス クラス）

> A service that provides an interface for you to manage and display personalized content recommendations.

- URL：https://roblox.minecraft-okinawa.com/reference/classes/RecommendationService/
- 公式：https://create.roblox.com/docs/reference/engine/classes/RecommendationService
- 受け継いでいるクラス：Instance

## メソッド

- `RecommendationService:GenerateItemListAsync(generateRecommendationItemListRequest: Dictionary): RecommendationPages`：Returns a paginated list of personalized recommendation items for the specified request configuration.
- `RecommendationService:GetRecommendationItemAsync(itemId: string): Dictionary`：Retrieves a single registered recommendation item by its ItemId.
- `RecommendationService:LogActionEvent(actionType: RecommendationActionType, itemId: string, tracingId: string, actionEventDetails: Dictionary): ()`：Logs a user action, such as a reaction or play, taken on a recommended item.
- `RecommendationService:LogImpressionEvent(impressionType: RecommendationImpressionType, itemId: string, tracingId: string, impressionEventDetails: Dictionary): ()`：Logs an impression event, such as a user viewing a recommended item.
- `RecommendationService:LogPreferenceEvent(preferenceType: RecommendationPreferenceType, targetType: RecommendationPreferenceTargetType, targetId: string, tracingId: string, itemId: string): ()`：Logs a user preference signal, such as follow or mute, toward a user, universe, or custom content tag.
- `RecommendationService:RegisterItemAsync(player: Player, registerRecommendationItemsRequest: Dictionary): Dictionary`：Registers a new item on the server so it can be included in recommendations, returning the generated ItemId and ReferenceId.
- `RecommendationService:RemoveItemAsync(itemId: string): ()`：Removes a registered item from the recommendation system by its ItemId.
- `RecommendationService:UpdateItemAsync(updateRecommendationItemRequest: Dictionary): ()`：Updates the mutable attributes of an existing recommendation item.

英語の説明とメンバー一覧：Roblox Creator Documentation（CC BY 4.0）。日本語の解説はこのサイト独自のものです。

執筆：鈴木孝昌（現役プロジェクトマネージャー／プログラミング講師）／運営：沖縄マイクラ部 プログラミングスクール「クロスウェーブ」（https://minecraft-okinawa.com/）