Go-DDD-OrderCustomerConfiguration.go

// WithCustomerRepository applies a given customer repository to the OrderService
func WithCustomerRepository(cr customer.CustomerRepository) OrderConfiguration {
	// return a function that matches the OrderConfiguration alias,
	// You need to return this so that the parent function can take in all the needed parameters
	return func(os *OrderService) error {
		os.customers = cr
		return nil
	}
}

// WithMemoryCustomerRepository applies a memory customer repository to the OrderService
func WithMemoryCustomerRepository() OrderConfiguration {
	// Create the memory repo, if we needed parameters, such as connection strings they could be inputted here
	cr := memory.New()
	return WithCustomerRepository(cr)
}