NestJS

We inherited this project and the backend is using LoopBack v3. I haven't taken a look at Loopback.io v4, but I'm planning to replace it. The reason being is that Loopback v3 documentation is a bit confusing and we are having trouble packaging the build using Webpack. Not to mention, integrating unit tests (latest Jest).

I still think Loopback is a great tool, but their documentation is really "messy" and hard to navigate through. There's also a constraint of time from our side. So what's the best option out there?

Should I try upgrading to Loopback v4, or trying other stuff? (i.e. NestJS)

Thanks!

We started using NestJS even more and replaced our Node.js IPC for microservices with the native decorator of NestJS . It's more stable, you don't have to worry about connection status and .toPromise() works great. Same for

Since I got good experience with Spring (Java) and Angular ( TypeScript), I was happy when I found NestJS, which got it's inspiration of these both frameworks. It brings Dependency Injection to TypeScript's back-end world, which is super helpful to create high salable and clean projects.

Nest.js Introduction

Nest is a framework for building efficient, scalable Node.js server-side applications. It uses progressive JavaScript, is built with and fully supports TypeScript (yet still enables developers to code in pure JavaScript) and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming).

Under the hood, Nest makes use of robust HTTP Server frameworks like Express (the default) and Fastify. Nest provides a level of abstraction above these frameworks, but can also expose their APIs directly to the developer. This allows for easy use of the myriad third-party modules which are available for each platform.

Philosophy

In recent years, thanks to Node.js, JavaScript has become the “lingua franca” of the web for both front and backend applications. This has given rise to awesome projects like Angular, React and Vue, which improve developer productivity and enable the construction of fast, testable, and extensible frontend applications. However, while plenty of superb libraries, helpers, and tools exist for Node (and server-side JavaScript), none of them effectively solve the main problem - architecture.

Nest provides an out-of-the-box application architecture which allows developers and teams to create highly testable, scalable, loosely coupled, and easily maintainable applications.

Source: https://docs.nestjs.com/