How to Avoid Premature Abstraction in Go

Avoid premature abstraction in Go by implementing concrete logic first and only extracting interfaces when duplication occurs across multiple use cases.

Avoid premature abstraction by implementing concrete, specific logic first and only extracting interfaces or generic types when you encounter repeated patterns across at least two different use cases. Start with a simple struct and concrete methods, then refactor into an interface only when the duplication becomes a maintenance burden.

// Start concrete: specific implementation
func ProcessOrder(order *Order) error {
    // specific logic here
    return nil
}

// Refactor later only if needed: extract interface
// type OrderProcessor interface { Process(*Order) error }
// func NewOrderProcessor() OrderProcessor { return &OrderService{} }

Premature abstraction means creating complex, generic code structures before you actually need them. It is like building a custom factory machine to make one single widget; it is overkill and hard to maintain. Wait until you have to build the same thing twice before you create a reusable template.