gdi

gdi

go inject tools
This is a di tool encapsulated by the dependency injection framework and 
shielding the underlying details. 
It is mainly used to build go projects and solve the dependencies of go 
project components

create di inject interface

use fb-inject

package main

import (
	"log"

	"github.com/go-god/gdi"
	"github.com/go-god/gdi/factory"
)

type service struct {
	App    string
	Config *appConfig `inject:""`
}

// AppConfig app config
type appConfig struct {
	Name string
}

// New create server entry
func New() *service {
	return &service{}
}

func createConfig(name string) *appConfig {
	return &appConfig{
		Name: name,
	}
}

func (s *service) GetConfig() *appConfig {
	return s.Config
}

func main() {
	di := factory.CreateDI(factory.FbInject)

	err := di.Provide(
		&gdi.Object{Value: New()},
		&gdi.Object{Value: createConfig("gdi-demo")},
	)
	if err != nil {
		log.Fatalln("provide error: ", err)
	}

	err = di.Invoke(func() error {
		log.Println("service has run")
		return nil
	})

	if err != nil {
		log.Fatalln("invoke error: ", err)
	}

	// some code...
}

use dig-inject

package main

import (
	"log"

	"github.com/go-god/gdi"
	"github.com/go-god/gdi/factory"
)

type service struct {
	App     string
	Config  *appConfig `inject:""`
	digInfo digInfo
}

type digInfo struct {
	app string
}

// AppConfig app config
type appConfig struct {
	Name string
}

// New create server entry
func New() *service {
	return &service{}
}

func createConfig() *appConfig {
	return &appConfig{
		Name: "dig-inject-demo",
	}
}

func createAbc(conf *appConfig) *digInfo {
	return &digInfo{
		app: conf.Name,
	}
}

func (s *service) GetConfig() *appConfig {
	return s.Config
}

func main() {
	di := factory.CreateDI(factory.DigInject)

	err := di.Provide(
		&gdi.Object{Value: New},
		&gdi.Object{Value: createConfig},
		&gdi.Object{Value: createAbc},
	)
	if err != nil {
		log.Fatalln("provide error: ", err)
	}

	err = di.Invoke(func(args ...interface{}) error {
		log.Println("service has run")
		return nil
	})

	if err != nil {
		log.Fatalln("invoke error: ", err)
	}

	// some code...
}

Dependency injection framework

facebook inject: github.com/facebookgo/inject
uber-go/dig: go.uber.org/dig