Factory

Factory creates a new instance every time the service is requested. This is useful for services that should not be shared or need fresh state on each use.

Key Points:

🔄 New instance created on each request
🚫 No caching or reuse
🧵 Safe for concurrent use (each call gets its own instance)

Example

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package main

import (
	"github.com/wrapped-owls/goremy-di/remy"
)

type RequestID string

func init() {
	remy.Register(
		nil,
		remy.Factory(
			func(retriever remy.DependencyRetriever) (RequestID, error) {
				// Each call will generate a new unique request ID
				return RequestID(generateUniqueID()), nil
			},
		),
	)
}

You can also use the convenience function:

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remy.RegisterFactory(
    nil,
    func (retriever remy.DependencyRetriever) (RequestID, error) {
        return RequestID(generateUniqueID()), nil
    },
)