Dependency injection fundamentals in C# - DI vs IoC vs DIP

In today's video we're going to cover Dependency Injection fundamentals.

We'll cover Dependency Injection (DI), the Dependency Inversion Principle (DIP), Inversion of Control (IoC, IoC container). We'll talk about what each of these are, what the difference between them is, and how we can apply these principals via an example and leveraging the Microsoft.Extensions.DependencyInjection nuget package.

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[tiffaleyshon]

Dude! I'm a programmer of over 20 years and I've never seen it explained this clearly and concisely before.

[noneedtoknowthishandle]

Your content is great. I am following you since a year and I have learned alot. Surely gonna buy those courses.

[issamboutissante]

This video is amazing

Can’t wait for the next one.

[mohannadqa]

5:06
Man, finally it clicked. I'm so happy thank you.
Dependency injection. Such a fancy word for an obvious concept.
But now it makes sense, you are injecting a dependency rather than sticking with a specific dependency.

[ertackosucu]

This is the best video explaining those concepts. Amazing, thank you.

[AK-vxdy]

Nice clear and practical take. Excellent job !

[QVMaster]

I could just say it's AMAZING <3

[jilqnqx]

great explanation amichai, thank you :)

[kamilmikua]

nice, we need more content like this, good job!

[thijsvandervegt]

Hey Amichai, have you ever thought about making videos about Modular Monoliths? Thanks for the video btw :)

[margosdesarian]

Hi Amichai, it would be great if you could slow down just a little bit - say 5%. Its a little hard to keep up at that speed :) OH dont worry, i discovered that you can run it at 75% speed., although you do sound as if you have had a few too many beers ...

[Luiz-yoqf]

Hi mate. Awesome video! thank you for the great explanation.

[itsgddemon]

Could you consider making a video about what is the difference between making the validation inside the valueobjects, entities and with fluentValidation, could we mix and match these validations and what is the best approach.

[shahzadahmad-vgou]

Bro, I was always confused between these terms, Thank you for this awesome video.

[adamsontag]

Thank you for very nice and clean explanation.
I have a few questions:
1. As you need Service provider to be built, does that mean that you can register services only on startup of the application or is there a technique to safely register services during runtime ?
2. Let's say I have DbContext from entity framework and I have two databases meaning they have two different connection strings. Is there a way to use EF with dependency injection in a way that would be able to resolve the correct database ?

And again thank you for great explanation it was very helpful to me.

[mercyfulM]

hey, first of all thank you for the video. maybe quite an newbie question but how do you generate the classes and method so fast? is it a shortcut/key or is it something like copilot? thank you very much!

[theanachronism]

Awesome! Maybe I ask what you use for drawing on the screen during the screen record?

[davidjiang]

Another great lesson!
Would you please consider making more videos on c# core concepts needed for .NET? 😊

[JackFord]

What tool do you use to draw in your videos?

[FarmerWidmo]

Silly question, but what if GithubClient accepted some parameters as well? How would I register it in the DI container?