GitHub - d3fvxl/di: 🛠 A full-featured dependency injection container for go programming language. (original) (raw)

DI

DI is a dependency injection library for the Go programming language.

Dependency injection is a form of inversion of control that increases modularity and extensibility in your programs. This library helps you organize responsibilities in your codebase and makes it easy to combine low-level implementations into high-level behavior without boilerplate.

Features

• Intuitive auto wiring
• Interface implementations
• Constructor injection
• Optional injection
• Field injection
• Lazy-loading
• Tagging
• Grouping
• Iteration
• Decoration
• Cleanup
• Container Chaining / Scopes

Installation

go get github.com/defval/di

Documentation

You can use the standard pkg.go.dev and inline code comments. If you are new to auto-wiring libraries such as google/wireor uber-go/dig, start with the tutorial.

Essential Reading

• Tutorial
• Examples
• Advanced Features

Example Usage

package main

import ( "context" "fmt" "log" "net/http" "os" "os/signal" "syscall"

"github.com/defval/di"

)

func main() { di.SetTracer(&di.StdTracer{}) // create container c, err := di.New( di.Provide(NewContext), // provide application context di.Provide(NewServer), // provide http server di.Provide(NewServeMux), // provide http serve mux // controllers as []Controller group di.Provide(NewOrderController, di.As(new(Controller))), di.Provide(NewUserController, di.As(new(Controller))), ) // handle container errors if err != nil { log.Fatal(err) } // invoke function if err := c.Invoke(StartServer); err != nil { log.Fatal(err) } }

Full code available here.

Questions

If you have any questions, feel free to create an issue.