#nestjs Development Tutorials & Tips | Roast Dev

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The Ultimate Guide to Dependency Injection in NestJS

Why do we use dependency injection?When you’re developing a smaller component of your system, such as a module or a class, you often require functionality from other classes. For instance, you might...

10.04.2025 0 Read More

[DDD] Tactical Design Patterns Part 4: Consistency

More than a year ago, I wrote about tactical design patterns in Domain-Driven Design (DDD). I'm sorry. I'm not good at English. This article is Part 4 of the series and focuses on patterns for maintai...

10.04.2025 0 Read More

NestJS: Persistência de Dados com PostgreSQL e TypeORM

Vamos dar continuidade a nossa série de artigos dominando o NestJS. Neste artigo, vamos aprender a subir um banco de dados PostgreSQL com Docker e configurar o TypeORM no NestJS. Vamos também aprend...

12.04.2025 0 Read More

Rate Limiting in NestJS Using @nestjs/throttler

What is Rate Limiting? Rate limiting is a technique used to control the number of requests a user or system can make to a server in a given time period. Think of it like this: You can’t dri...

14.04.2025 0 Read More

Advanced Role Based Access Control (RBAC) in NestJS with a Custom Permission Guard

Implementing role-based access control in your NestJS app? Here's a clean and scalable solution using a custom PermissionGuard that: ✅ Supports @public() routes ✅ Checks permissions via @Permissio...

16.04.2025 0 Read More

NestJS: Construindo o Módulo de Usuário — Parte 1: Salvando no banco

Continuando nossa série de artigos dominando o NestJS, hoje vamos aprender a criar um módulo de usuários, que é um dos módulos mais importantes em uma aplicação, pois é responsável por gerenc...

17.04.2025 0 Read More

How to Deploy a NestJS App on Vercel – The Simple Guide (Deploy API on Vercel)

Want to deploy your NestJS backend on Vercel? Great choice! Vercel is super fast and easy to use, and it supports serverless apps out of the box. Here’s a step-by-step guide to help you get your Nes...

21.04.2025 0 Read More

Fundamentos iniciales

Modulos Agrupa elementos relacionados: controladores, servicios, proveedores, etc. Todo proyecto empieza por el módulo raíz: AppModule. ⛶import { Module } from '@nestjs/common'; import { ...

21.04.2025 0 Read More

Clean code in NestJS

In the day-to-day life of a developer, writing code that works is not enough. Over time, I understood that the real challenge is to keep that code understandable, scalable and clean. In this article...

22.04.2025 0 Read More

Resolving CORS Errors in a NestJS App Deployed on Vercel

When deploying a NestJS application on Vercel, you may encounter CORS (Cross-Origin Resource Sharing) issues, particularly when your API is accessed from different domains. To resolve these issues and...

23.04.2025 0 Read More