The repositories/customers/repository.go File

repository.go

package customers                                                                                       
                                                                                                        
type Repository struct {                                                                                
  // This is where whatever the repository will use to access the DB will live                          
  // as an unexported field. Nothing groundbreaking here.                                               
  somethingToAccessTheDB interface{}                                                                    
}                                                                                                       
                                                                                                        
// NewRepository will return a new instance of the customers.Repository. I've                           
// not outfitted it with actual DB connection logic so as to keep this article                          
// concise. The one takeaway here is that the DB accessor/provided should                               
// itself be injected, but that's out of the scope of this article.                                     
func NewRepository(somethingToAccessTheDB interface{}) *Repository {                                    
  return &Repository{                                                                                   
    somethingToAccessTheDB,                                                                             
  }                                                                                                     
}