gitlab.com/erdian718/di

di

Package di provides a reflection-based dependency injection toolkit.

Feature

• Support value service, shared service and local service.
• Easily extend existing injector.
• Automatic cleanup.

Usage

import (
	"fmt"
	"io"
	"strconv"
	"strings"

	"gitlab.com/erdian718/di"
)

func main() {
	inj, err := di.New(nil).
		Value(888, nil).
		Share(func(v int) string {
			return strconv.Itoa(v)
		}, nil).
		Local(func(s string) *strings.Reader {
			return strings.NewReader(s)
		}, (*io.Reader)(nil)).
		Build()
	if err != nil {
		panic(err)
	}
	defer inj.Close()

	_, err = inj.Invoke(func(r io.Reader) error {
		data, err := io.ReadAll(r)
		if err != nil {
			return err
		}
		fmt.Printf("%s\n", data)
		return nil
	})
	if err != nil {
		panic(err)
	}

	// ...
}

Note

• The injector itself is not goroutine safe, but each goroutine can clone an injector.