Moving beyond API polling to asynchronous API design

The text explores the shift from traditional API polling to asynchronous API design, emphasizing the inefficiencies of polling, where clients repeatedly request updates from a server, leading to wasted resources and poor user experience. It highlights that asynchronous APIs, unlike polling, allow servers to notify clients of changes, improving efficiency and real-time data delivery. The text discusses technologies such as webhooks and server-sent events (SSE) as alternatives, detailing how they provide real-time updates without constant client requests. It also addresses the complexities and considerations involved in transitioning to asynchronous designs, including the integration of legacy systems and the choice between lean and rich event payloads. Furthermore, the text explores the differences and use cases for async APIs versus data streaming, offering guidelines for selecting the appropriate method based on specific needs, such as governance, real-time analytics, or external partner interactions.

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