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NestJS
Stack · TypeScript Backend

Agency & developers NestJS

We build structured, typed and testable NestJS backends: REST and GraphQL APIs, microservices, workers. The backend architecture that holds up over time.

Senior product team · NestJS in production · from scoping to deployment
In short

What is NestJS, and why build an API with NestJS?

NestJS is the most complete TypeScript backend framework in the Node.js ecosystem. Its modular architecture, inspired by Angular (controllers, services, modules, guards, interceptors), enforces a structure that scales with the size of the team and the codebase. Ideal for building an API with NestJS, building microservices and shipping backends that evolve over the long run.

The tech

Why we use NestJS for your backend APIs

01

Modular architecture

Modules, controllers, services, DTOs: a structure that stays readable at 100,000 lines of code.

02

Dependency injection

Native IoC. Services are injected, not instantiated. Unit tests become trivial.

03

Decorators & validation

class-validator, class-transformer: validation is declarative and typed. Zero validation boilerplate.

04

Microservices & workers

Native transport layers (TCP, Redis, Kafka). A NestJS backend can be a monolith or move to microservices without a rebuild.

For you

What NestJS changes for your business

Tech that delivers a concrete result: a NestJS backend that scales, stays maintainable and extends without a rewrite.

01

Code that ages well

The structure NestJS enforces prevents drift. A dev who joins the team 6 months later finds their way around.

02

Easy testing

Dependency injection makes every service testable in isolation. Mocks come naturally.

03

Growth without a rebuild

Adding a module, a GraphQL API, a Redis consumer: NestJS takes on the new without breaking the existing.

04

Simpler hiring

NestJS is standard. A senior Node.js developer knows it. No in-house framework to relearn.

Our expertise

Our NestJS expertise, in numbers

5+
years of NestJS experience
100 %
strict TypeScript in production
<2 s
cold start in production
0
technical debt tied to the architecture
Use cases

What we build with NestJS

REST APIs for web and mobile applications
GraphQL services with Apollo
Microservices with Redis or Kafka transport
Asynchronous processing workers
Backends for Expo/React Native applications
AI integration modules with Claude or OpenAI

We combine NestJS with

The stack that surrounds NestJS on our projects.

TypeScriptPostgreSQLRedisDockerJestPrisma
Method

How we work with NestJS

Every stack comes with its own ecosystem. We always pick the technologies best suited to your project, based on its needs and its context.

FAQ

NestJS: your questions

Can't find your answer? Write to us, we'll get back to you.

Contact us

To build an application with NestJS, we initialize the project through the NestJS CLI, then structure the code into business modules (controllers, services, DTOs). The architecture is ready to scale from day one, with dependency injection and strict TypeScript.

A NestJS agency like Fragments Studio brings you a full team: backend, DevOps, testing: and an architecture that holds up over time. Your project doesn't hinge on a single person, and the quality stays consistent on every delivery.

Yes, with the Apollo Server integration. Code-first or schema-first: both approaches are supported natively.

Yes. We audit the architecture, identify the anti-patterns and improve it gradually.

Yes, that's our reference backend stack. Prisma ORM + NestJS + PostgreSQL is the most solid combination for a NestJS backend in production.

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Your project with NestJS

We build your NestJS backend: REST API, GraphQL, microservices. Clean architecture, strict TypeScript, tested and deployed.

Discuss my NestJS project
Discuss my NestJS project