SAP UI5
EventBus是一個小型的subscribe/publish模式實作，位于namespace sap.ui.core下面。
subscribe：
publish：
消息訂閱：
消息釋出：
Kyma
Kyma Event Bus receives Events from external solutions and triggers the business logic created with lambda functions and services in Kyma. The Event Bus is based on the NATS Streamingopen source messaging system for cloud-native applications.