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Asynchronous APIs (Async APIs) are a type of API that allows for communication between two systems without requiring a direct connection between them. This makes them ideal for applications that need to be able to communicate with each other even when they are not online at the same time. One of the most popular Async API protocols is MQTT. MQTT is a lightweight, publish-subscribe messaging protocol that is well-suited for machine-to-machine (M2M) communication. It is also used in a variety of other applications, such as IoT, wearables, and real-time streaming. Introduction: The Humble Beginnings of MQTT The year was 1999. Dr. Andy Stanford-Clark from IBM and Arlen Nipper from Arcom (now Eurotech) were grappling with a conundrum: how to provide satellite link communications for o...

Asynchronous (async) Open APIs play a significant role in modern event-based architectures. These APIs are designed to handle incoming requests without waiting for responses, making them ideal for architectures that require low latency, high throughput, and efficient resource utilization. Event-driven architectures often incorporate async operations to react to events and perform non-blocking tasks. Here's a broad overview of async Open APIs and how they relate to event-based architectures: Event-Driven Architecture (EDA): EDA is a design paradigm in which software components produce, detect, consume, and react to events. These events can be anything from data changes, user actions, system updates, etc. Async APIs in EDA: Traditional RESTful APIs are synchronous; the clien...