The Evolving API Program – Part 1

APIs have significantly evolved over the past 15 years, transitioning from predominantly web-based, REST-style interfaces to a diverse portfolio that includes event-based, experience, and business capability APIs. While web APIs have traditionally managed system interactions through CRUD operations, organizations are increasingly adopting business capability APIs that focus on robust, operation-oriented interactions to meet complex business needs. Experience APIs, often implemented using GraphQL, optimize API calls by orchestrating multiple backend operations into a single request, enhancing performance over slow networks and providing a tailored front-end developer experience. Event-based APIs integrate systems through business events using technologies like WebSockets and Webhooks, reducing infrastructure load by shifting from polling to event-driven models. This diversity in API styles and protocols allows organizations to address more sophisticated integration and automation scenarios, enabling them to extend API capabilities beyond initial use cases. The series will further explore how microservices and data streaming fit into this evolving API landscape.