NestJS
NestJS is a TypeScript-first Node.js framework with Angular-style modules, dependency injection, and decorators, bringing enterprise structure to server-side JavaScript. It runs on Express or Fastify under the hood.
Pros
- Enforced architecture. Modules and dependency injection keep large codebases organized. 0
- TypeScript native. End-to-end typing catches errors before runtime. 0
- Transport agnostic. REST, GraphQL, gRPC, and websockets share one programming model. 0
- Testing built in. The DI container makes mocking dependencies straightforward. 0
Cons
- Boilerplate heavy. Simple endpoints require module, controller, and provider files. 0
- Abstraction tax. Decorators and metadata add indirection over plain Express. 0
- Learning curve. Developers without Angular background face unfamiliar patterns. 0
- Startup overhead. Reflection-based bootstrapping slows cold starts in serverless. 0