A solution to architecture problem in Node

Is built with TypeScript and combines best concepts of
 OOP (Object Oriented Progamming)
FP (Functional Programming)
FRP (Functional Reactive Programming)

Nest framework in a very active way encourages developers to try, learn and use some well-known software engineering paradigms,patterns, like:

• Domain Driven Design
• Event Sourcing
• Microservices architecture.

Core Concepts

 3 basic application building blocks 

• Modules
• Controllers
• Components

Modules

separate concerns of your applications

Controllers

This layer is responsible for handling incoming requests and returning a response to the client.

Components

Everything is a component:

• Role Service: Some bussines logic.
• Role Repository: Abstract interaction with database.
• Others : Role Factorie, Role Helper.

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