Build a Real Sales API Endpoint (FastAPI + PostgreSQL) скачать в хорошем качестве

Build a Real Sales API Endpoint (FastAPI + PostgreSQL)

▶️ Part of the Building a Production-Style FastAPI Backend (PostgreSQL-First) series 📘 Watch the full playlist here:    • Building a Production-Style FastAPI Backen...   💻 GitHub repository for this series: github.com/marcmanmedia/northwind-lite-fastapi In this episode of the FastAPI Backend Series, we build our first real business endpoint — employee sales performance — using PostgreSQL views and FastAPI. This isn’t a toy example. We connect to a production-grade PostgreSQL database (Northwind-lite) hosted in the cloud and expose a /sales endpoint that returns aggregated employee revenue data. What You’ll Learn: ✔ Why would database views belong in production systems ✔ How to create a PostgreSQL aggregation view ✔ How to expose raw SQL safely using SQLAlchemy ✔ How FastAPI dependency injection works ✔ How to return structured JSON from database queries Architecture Principle: The database computes. The API exposes. The client consumes. We move business logic closer to the data layer using a PostgreSQL view and keep our FastAPI layer clean and intentional. Tech Stack: FastAPI PostgreSQL SQLAlchemy Pydantic (coming next episode) VS Code Cloud-hosted PostgreSQL (Neon) Next Episode: In Episode 5, we introduce Pydantic response models and transform our endpoint into a fully defined API contract. If you're building real backend systems and want production-level architecture patterns — this series is for you. #FastAPI #PostgreSQL #BackendDevelopment #PythonAPI #SoftwareArchitecture #SQLAlchemy #RESTAPI #WebDevelopment