OAuth and OpenID Connect

Authentication (and Authorization) is an important part of our internet for a long time. This post will walkthrough how this problem is solved, from the simplest form into modern approach.

Top down vs Bottom up

Taking from SoF link

Repository Pattern in .NET Entity Framework

Why shouldn’t I use the repository pattern with Entity Framework?

Inversion Of Control

Concepts

Dependency Inversion

Concepts

Dependency and decoupling

1. Simplest dependency graph