Part 4.1 — Setting Up Jest, Test Environment & Prisma Test DB
Before you write your first test, you need a stable foundation: Jest configuration, test modules, a sandboxed PostgreSQL database, and a clean Prisma workflow for reproducible tests.
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Before you write your first test, you need a stable foundation: Jest configuration, test modules, a sandboxed PostgreSQL database, and a clean Prisma workflow for reproducible tests.
A productive backend engineer knows how to manage migrations, environments, Dockerized databases, and workflow scripts. This post makes those skills second nature.
Your API becomes truly useful only when the frontend can rely on it. In this post, you’ll learn how to shape consistent REST contracts, shared types, and error formats for React applications.
Production backends thrive on predictable errors, structured validation, and consistent responses. In this post, you’ll learn how to build those foundations using NestJS pipes, filters, and interceptors.
This post teaches you how to design efficient, relational Prisma queries while avoiding N+1 errors, modeling relations cleanly, and thinking like a PostgreSQL-first backend engineer.
Clean REST architecture starts with controllers, services, and DTO validation. In this post, you’ll build the structure behind every API endpoint you’ll create moving forward.
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