paul-developer-stack/tarea-4-backend

How paul-developer-stack/tarea-4-backend works

This is an Express/MySQL inventory backend. Customers register or log in, then authenticated customers can submit purchases that validate stock and record purchase details transactionally; administrators can manage the product catalog, while product listing is public. The graph separates HTTP routing, authorization, domain controllers, and persistence. The README documents the endpoint and role boundaries; source excerpts show route dispatch and controller database operations. The SQL schema is represented as the store, but its definitions were not sampled.

Main entry points: index.js Express app · db.js MySQL pool · productosRoutes.js Product routes · comprasRoutes.js Purchase routes

Components 13

HTTP API

Express app index.js
Auth routes src/routes/authRoutes.js
Product routes src/routes/productosRoutes.js
Purchase routes src/routes/comprasRoutes.js

Identity & Access

Registration & login src/controllers/authController.js
Token & role checks src/middlewares/authMiddleware.js
JWT secret src/config/auth.js

Inventory Operations

Product catalog src/controllers/productosController.js
Purchase processing src/controllers/comprasController.js

Persistence

MySQL pool src/config/db.js
Inventory database database.sql

Other components

Customer
Administrator

Connections 16

Customer → Express app: calls API README.md
Administrator → Express app: calls API README.md
Express app → Auth routes: routes /api/auth index.js
Express app → Product routes: routes /api/productos index.js
Express app → Purchase routes: routes /api/compras index.js
Auth routes → Registration & login: dispatches src/routes/authRoutes.js
Product routes → Product catalog: dispatches src/routes/productosRoutes.js
Purchase routes → Purchase processing: dispatches src/routes/comprasRoutes.js
Product routes → Token & role checks: checks admin role src/routes/productosRoutes.js
Purchase routes → Token & role checks: checks customer role src/routes/comprasRoutes.js
Registration & login → JWT secret: signs tokens src/controllers/authController.js
Token & role checks → JWT secret: verifies tokens src/middlewares/authMiddleware.js
Registration & login → MySQL pool: queries users src/controllers/authController.js
Product catalog → MySQL pool: queries products src/controllers/productosController.js
Purchase processing → MySQL pool: records purchases src/controllers/comprasController.js
MySQL pool → Inventory database: reads and writes

Drawn by GitDiagram on November 11, 2026 from the repository's file tree, README and source files. Read as Markdown ·