Building Microservices API in Go - Introduction to Hexagonal Architecture

The video introduces hexagonal architecture, also known as ports and adapters, which was conceptualized by Alistair Cockburn in 2005. It emphasizes separating code into user, business, and server sides, with dependencies directed towards the business logic. Interfaces at boundaries allow for interchangeable adapters, promoting loose coupling and easier testing. An example of a banking application illustrates these principles. The video concludes by highlighting the benefits of hexagonal architecture, such as maintainability and isolated testing, and previews the next steps in implementing this architecture.

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