shulgastanslv / DIContainer

my DI container written from scratch

Introduction

DI container written from scratch in .net 7.0 with the basic methods and features.

Installation

$ git clone https://github.com/akiroqw/DIContainer.git

To add a link to this project, follow these steps:

• Go to your project and click on the "Dependencies" button
• Add a link to the project
• Select the downloaded project

Usage

var services = new ServiceCollection(); //Initializing a collection of services to register our services

After initialization, we can add some services and their implementations to our collection. A simple example of a services:

public interface IService
{ 
    void Show();
}
public class Service : IService
{
    private readonly IMessage _message;
    public Service(IMessage message)
    {
        _message = message;
    }
    public void Show()
    {
        Console.WriteLine(_message.Text);
    }
}

public interface IMessage
{
    public string Text { get; set; }
}

public class Message : IMessage
{
    public string Text { get; set; }

    public Message()
    {
        Text = "Message";
    }
}

Adding services to the collection

services.AddSingleton<IMessage, Message>();
services.AddTransient<IService, Service>();

After adding services, let's assemble our container

var container = services.BuildServiceProvider();

Our container contains the services that we just added, we can get one of these services using the GetService method

For example:

var service = container.GetService<IService>();

Our service variable stores an object of type IService, so that we can call those methods that are defined in our interface

service.Show(); //Output: Message