The Evolution of Building API Middlewareâ

The blog post discusses the evolution of API middleware in businesses as they scale, highlighting the transition from basic API management to more sophisticated middleware solutions. Initially, companies often manage API integrations with ad-hoc solutions, addressing issues like rate limits and authentication through simple tools and frameworks. As businesses grow, they typically adopt stateless middleware to improve efficiency and observability by using dedicated classes or wrappers for API calls. Eventually, companies may need to implement stateful middleware, such as an egress API proxy, to handle complex scenarios like quota management, production-grade requirements, and detailed API observability. This progression helps businesses manage their growing dependence on third-party APIs and maintain a robust and scalable API integration strategy.

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