What role does a RAML file play in API design?

The role of a RAML (RESTful API Modeling Language) file in API design is to define the structure and operations of the API. RAML provides a clear and structured way to describe the various components of an API, such as resources, methods (like GET, POST, PUT, DELETE), parameters, request and response types, and data formats. By using RAML, developers can create a blueprint of the API that is both human-readable and machine-readable, facilitating better communication and collaboration among development teams. It allows for the documentation of the API in a concise format, making it easier for stakeholders to understand how the API should function and interact with other systems.

In addition to defining the API structure, RAML enables developers to establish contracts for API usage, which can be beneficial for both the API providers and consumers. This clarity in design can reduce misunderstandings and ensure that API implementations adhere to the predefined specifications.