Polling-based APIs or the #RESTfulAPIs were the main building blocks of traditional integration stories. But with the need to respond to events in real-time, integration architecture has shifted from being polling-based to event-driven. With the emergence of reactive event-driven architecture, the asynchronous APIs were able to hold their distinct position in modern-day integrations. Even though the event-driven APIs provide their own advantages such as high resiliency, high responsiveness, and more, management of #asynchronousAPIs continues to be a challenge to the organizations.