golang-structs-interfaces

To improve testability, design small, focused Go interfaces where they are consumed. Returning concrete types from constructors while defining interfaces at the consumer side simplifies mocking dependencies without exposing implementation details.

Best practices for Go structs involve designing concrete, focused types that improve code clarity and maintainability. You should return concrete types from constructors to ensure idiomatic Go development and straightforward implementation practices.

Defining Go interfaces where they are used promotes small, focused contracts aligned with consumer needs. This design choice improves code clarity and simplifies testing by allowing mocking without exposing implementation details.

You should return concrete types from constructors in Go to maintain idiomatic design and code clarity. This practice ensures structs remain focused, allowing consumers to define the specific interfaces they need.