@startuml API 获取应用详情
actor User
participant "AppCenter Router" as Router
participant "AppCenter Manager" as Manager
database MongoDB

User -> Router: GET /api/app/{appId}
Router -> Manager: fetch_app_data_by_id()
Manager -> MongoDB: find_one app
MongoDB --> Manager: return app data
Manager -> Manager: build app property
Manager --> Router: return app details
Router --> User: return response
@enduml