A secure NestJS + Prisma API starter, piece by piece
Most NestJS tutorials stop at nest new and a controller. The part that takes time is everything that wraps the controllers: security headers, a CORS…
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NestJS hexagonal architecture: where DTOs, domain models, and types belong
Start with the boundary: who sends this data, who owns its meaning, and who is allowed to change it? In a NestJS hexagonal architecture, use transpo…
Четверо в одной транзакции: кейс-батлы, PgBouncer под Prisma и реплика, которая показывает пустой инвентарь
Обе мои предыдущие статьи про этот сайт с кейсами CS2 заканчивались списком того, чего в нём нет: платежей, депозита предметов, кейс-баттлов, рефера…
Building a Temporary Message Sharing API with NestJS, PostgreSQL, Prisma & Redis
I recently built a temporary message-sharing API from scratch using NestJS, PostgreSQL, Prisma and Redis . The idea is simple: Create a message, gen…
Generalizing Transactions in NestJS: A Domain Port over TypeORM and MongoDB
Transaction control usually starts out tied to whatever implements it. An executor — a concrete class that opens a transaction over the project's OR…
Tracing NestJS Pricing Flags via HTTP (Custom Logger Correlation Events)
Short answer: send structured log events from the NestJS custom logger to a backend API asynchronously, give every event a correlation ID that survi…
I Wired the Boring 80% So You Can Build the Interesting 20%
Built for the AI era: a production-ready TypeScript modular monolith with guardrails for robot coworkers. Every new project starts the same way. You…
NestJS Recipes
Hello everyone! Hope you are having a great day. 🖐️ There is always that foundational boilerplate code in NestJS projects that takes up most of our…
Как мы победили рутину: строим spec-driven платформу для генерации email
410 вариантов писем, сотня микросервисов и до 15 файлов, которые приходилось править ради одной нотификации. Добавление письма превратилось в квест:…
Transactions in NestJS and TypeORM without passing the EntityManager around
Transactions promise a simple guarantee: either everything commits, or nothing does. And yet, in a NestJS application with a repository layer, it is…
NestJS Error Capture: Tracking HTTP Exceptions Through Filter and Interceptor Boundaries
For a production logistics agent, error tracking should use one failure envelope at every execution boundary, then attach cost and latency before th…
The Repository Pattern in NestJS: a collection that happens to live in a database
The canonical starting point for a NestJS module backed by TypeORM is the one the framework itself documents: the module declares TypeOrmModule.forF…
Building Multi-Tenant Auth from Scratch Is Painful. So I Open-Sourced MT-URBAC (NestJS + Angular)
Every time you build a SaaS product, you hit the same wall: spending the first few days re-writing multi-tenant architecture, handling tenant contex…
I Created a NestJS Delivery Dispatch Backend with Concurrency Control & Dockerized Postgres
I built this delivery dispatch service to practice and master core backend engineering fundamentals in NestJS. Instead of just building a basic CRUD…
Building a tamper-evident audit log in NestJS with hash chains
Most audit logs are a lie by omission. You write a row that says "user X deleted document Y at 12:03." A week later, an incident review pulls it up,…
nestjs-docfy: mock servers, contract testing, and a much sharper MCP server
A few weeks ago I shared nestjs-docfy here — a library that moves Swagger decorators out of NestJS controllers into companion *.controller.docs.ts f…
AWS Lambda and NestJS: Communication between services
Originally published on Medium on November 11, 2023. In this guide, we’ll speak about communication in a distributed system using AWS Lambda and Nes…
Scaling a SaaS Beyond One Server
In Deploying a Full Stack SaaS , I got the app running in production on a single instance: Docker images, a CI/CD pipeline, one NestJS container and…
Monitoring a SaaS in Production
In the last article , I set up a pipeline that builds, tests, and deploys the monorepo automatically. That solves getting code out safely and repeat…
The Quiet Risk in How Most Banks Store Customer Documents, and How NestJS Handles It Properly
A compliance officer at a bank was preparing for an upcoming audit when she asked a question nobody on the engineering team had a clean answer to. E…
How NestJS Handles Secure Transactions in Banking Applications
Banking software cannot afford to be casual about anything. Every transaction needs to be verified, logged, protected from tampering, and traceable…
How I Built a Production Ready Microservice Notification System with NestJS, Redis, Bull Queues, and Docker
I built a real time notification microservice with NestJS, Redis, PostgreSQL, and Docker. When you are building a system that needs to deliver notif…
We Keep Our Architecture Rules in the Repo. The AI and the New Hire Read the Same File.
A few weeks ago I watched an agent build a feature beautifully. Clean code. Tests passed. Did exactly what I asked. Three sessions later, I opened t…
NestJS: The Backend Framework That Makes Node.js Feel Grown-Up 🚀
If you have ever tried to build a large Node.js backend and thought, "Why does this feel like I'm making it up as I go?" — you are not alone. Expres…
Integrating Webpay Plus into a modern stack
If you've ever worked on an e-commerce project in Chile, sooner or later you bump into Transbank. There's no avoiding it. I built a reference templa…
A NestJS reference app that proves the nest-native stack under realistic backend pressure
TL;DR : nest-native/reference-app is a v0.1 reference application that demonstrates the nest-native stack end-to-end — nest-drizzle-native and nest-…
NestJS vs Express: Which One Should You Choose in 2025?
NestJS vs Express: Which One Should You Choose in 2025? Node.js gives you two wildly different starting points when building a backend: the minimal,…
Production Ready NestJS Microservice Setup with Candy-Nest-CLI 🍬
If you build microservices with NestJS, you already know how powerful and structured the framework is. However, starting a new project often involve…
Feature Based Clean Architecture. Part 4: FBCA: Formalizing Responsibility Boundaries in a NestJS Module
An architectural doctrine for NestJS projects: a breakdown of typical codebase degradation scenarios and the structural constraints that keep them f…
Feature Based Clean Architecture. Part 3: The Architectural Risk of Cycles in NestJS: ROI of Decisions on a Five-Year Horizon
An architectural doctrine for NestJS projects: a breakdown of typical codebase degradation scenarios and the structural constraints that keep them f…