carla-s-romero/library-api

How carla-s-romero/library-api works

API Biblioteca is an Express REST API for managing authors and books. Clients send CRUD and book-search requests through the HTTP server and resource routes; controllers perform Mongoose operations, and list/search requests pass results to pagination and sorting before returning JSON. The API also connects to MongoDB and maps request, validation, missing-resource, and server errors to HTTP responses. The README documents the product capabilities; edges reflect only its explicit architecture statements or relationships visible in the sampled source, so unsampled implementation details are omitted.

Main entry points: app.js Express app · bookControllers.js Book operations and search · Author.js Author model · index.js Route registry

Components 17

HTTP entry

HTTP server server.js
Express app src/app.js

Resource API

Route registry src/router/index.js
Author routes src/router/authorsRoutes.js
Book routes src/router/booksRoutes.js
Author operations src/controllers/AuthorsControllers.js
Book operations and search src/controllers/bookControllers.js

Data layer

Database connection src/config/dbconect.js
Author model src/models/Author.js
Book model src/models/Livro.js
Model validation src/models/globalValidator.js
MongoDB

Request middleware

Pagination and sorting src/middlewares/paginationSorting.js
Not-found error src/middlewares/modelErrors/notFound.js
Error responses src/middlewares/errorHandler.js
Unknown-route handling src/middlewares/page404.js

Other components

API client

Connections 23

API client → HTTP server: sends requests README.MD
HTTP server → Express app: loads app server.js
Express app → Database connection: connects database src/app.js
Express app → Route registry: registers routes src/app.js
Route registry → Author routes: mounts routes src/router/index.js
Route registry → Book routes: mounts routes src/router/index.js
Author routes → Author operations: dispatches requests src/router/authorsRoutes.js
Book routes → Book operations and search: dispatches requests src/router/booksRoutes.js
Author routes → Pagination and sorting: passes list results src/router/authorsRoutes.js
Book routes → Pagination and sorting: passes list results src/router/booksRoutes.js
Author operations → Author model: queries and writes src/controllers/AuthorsControllers.js
Book operations and search → Book model: queries and writes src/controllers/bookControllers.js
Book operations and search → Author model: searches author src/controllers/bookControllers.js
Author operations → Not-found error: raises missing error src/controllers/AuthorsControllers.js
Book operations and search → Not-found error: raises missing error src/controllers/bookControllers.js
Express app → Unknown-route handling: handles unknown routes src/app.js
Express app → Error responses: registers error handler src/app.js
Pagination and sorting → Error responses: forwards invalid input src/middlewares/paginationSorting.js
Not-found error → Error responses: formats errors
Author model → MongoDB: persists documents README.MD
Book model → MongoDB: persists documents README.MD
Model validation → Author model: validates models
Model validation → Book model: validates models

More JavaScript diagrams: nodejs/node · addyosmani/agent-skills · mrdoob/three.js · axios/axios · react/create-react-app

Drawn by GitDiagram on September 30, 2026 from the repository's file tree, README and source files. Read as Markdown ·