yousefshihan152-rgb/last-book

How yousefshihan152-rgb/last-book works

Last Book is a session-based online bookstore. Shoppers browse categories and books, register or sign in, manage a cart, and submit delivery orders. The main request path runs through Express routing and controllers; the controllers handle catalog, account, cart, and order operations against MySQL. The graph separates these domain responsibilities even though they share one controller file. Source excerpts show the main routing and database interactions; unsampled view behavior and schema details are not inferred.

Main entry points: router.js Route dispatch · db.js MySQL pool · index.js Express app · controllers.js Catalog handlers

Components 14

HTTP application

Express app index.js
Route dispatch router/router.js
Page views views

Book catalog

Catalog handlers controllers/controllers.js
Category definitions model/categories.js

Accounts and sessions

Account handlers controllers/controllers.js
Login guards middlewares/auth.js
Session setup index.js

Cart and orders

Cart handlers controllers/controllers.js
Order handlers controllers/controllers.js

Shared services

MySQL pool model/db.js
Input checks middlewares/security.js
Error handling middlewares/error.js

Other components

Shopper

Connections 19

Shopper → Express app: sends requests
Express app → Route dispatch: mounts routes index.js
Express app → Input checks: checks inputs index.js
Express app → Error handling: handles errors index.js
Route dispatch → Catalog handlers: dispatches catalog router/router.js
Route dispatch → Account handlers: dispatches account router/router.js
Route dispatch → Cart handlers: dispatches cart router/router.js
Route dispatch → Order handlers: dispatches orders router/router.js
Route dispatch → Login guards: guards private routes router/router.js
Catalog handlers → Category definitions: looks up categories controllers/controllers.js
Catalog handlers → MySQL pool: queries books controllers/controllers.js
Catalog handlers → Page views: serves pages controllers/controllers.js
Account handlers → MySQL pool: reads and writes users controllers/controllers.js
Account handlers → Page views: serves login page controllers/controllers.js
Cart handlers → MySQL pool: reads and writes cart controllers/controllers.js
Order handlers → MySQL pool: creates orders controllers/controllers.js
Session setup → MySQL pool: stores sessions index.js
Account handlers → Error handling: wraps async errors controllers/controllers.js
Input checks → Error handling: forwards rejected input middlewares/security.js

Drawn by GitDiagram on November 14, 2026 from the repository's file tree, README and source files. Read as Markdown ·