RESTfirst

RESTfirst is a software development philosophy that emphasizes the principles of Representational State Transfer (REST) in the design and implementation of web services. It suggests prioritizing RESTful approaches from the outset of a project, rather than treating them as an afterthought or an optional addition. This approach advocates for building APIs that are stateless, client-server, cacheable, layered, and use a uniform interface, all of which are core tenets of REST.

The core idea behind RESTfirst is to leverage the inherent benefits of REST, such as scalability, simplicity, and maintainability, by making them the foundational design choices. Instead of first developing a service with custom endpoints and then attempting to retrofit RESTful constraints, RESTfirst encourages developers to design with these constraints in mind from the beginning. This often leads to more consistent, predictable, and easier-to-understand APIs.

Adopting a RESTfirst strategy typically involves focusing on resource identification using URIs, employing standard HTTP methods (GET, POST, PUT, DELETE) for operations, and utilizing standard media types for data representation (like JSON or XML). It also promotes the use of HATEOAS (Hypermedia as the Engine of Application State) to enable clients to discover available actions and resources dynamically. While not strictly enforced by all who adopt the philosophy, HATEOAS is seen as a crucial component for achieving true RESTfulness and is often a key consideration in a RESTfirst approach.