Functional Options Pattern: A strategy for cleanly passing configuration options in functions, enhancing flexibility and usability. Popular in Go, it mitigates issues like parameter bloat and mandatory options. Instead of cumbersome parameters, it uses a struct for options, allowing default values and encapsulation. Implementing via variadic parameters and functions as options enhances customization without breaking changes. Applicable in various languages, it’s particularly suited for Go's constraints. Examples include Docker and Uber’s Zap logging. Overall, it's a valuable tool for developers for managing function configurations.
https://andrerfcsantos.dev/posts/functional-options-pattern/