What is considered the best practice for documenting APIs in MuleSoft?

The best practice for documenting APIs in MuleSoft is to leverage RAML (RESTful API Modeling Language) or OAS (OpenAPI Specification). These specifications provide structured and standardized formats for API documentation that enable clear definitions of API endpoints, request and response formats, and data types.

Using RAML or OAS not only improves the clarity and consistency of the API documentation but also facilitates easier collaboration between different teams, such as developers and stakeholders. These formats come with built-in features for describing the API's functionalities, security schemes, and more, making it easier for external developers to understand how to interact with the API effectively.

In contrast, relying on simple text descriptions lacks the structure and rigor provided by RAML or OAS, making it harder to maintain and comprehend the API's full capabilities. Creating visual diagrams alone does not convey all technical details necessary for API implementation, while depending solely on comments in the code can lead to insufficient documentation that might not capture the overall API structure and design.