# juanospinanz-byte/proyectointegrador1 architecture

> Architecture diagram of the GitHub repository juanospinanz-byte/proyectointegrador1, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-05-12). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/juanospinanz-byte/proyectointegrador1
- Repository: https://github.com/juanospinanz-byte/proyectointegrador1

## Overview

1. This repo is a two-tier application: a React single-page frontend at the root, and a separate Node.js backend under `backend/`. The frontend is bootstrapped with Create React App, so the UI is bundled into static assets for development and production.

2. The frontend entry point is `src/index.js`, which mounts `App.js` and global styles from `index.css` / `App.css`. `public/index.html` is the single HTML shell, with `manifest.json` and `robots.txt` indicating standard CRA/PWA-friendly deployment assets.

3. The UI is organized around route-like page components in `src/pages/`: `Login`, `Registro`, `ProductoDetalle`, `Carrito`, and `ProcesoCompra`. That suggests the main user journey is account access, browsing a product, managing a cart, and completing checkout.

4. The backend is a standalone Express-style server in `backend/server.js`, with database access centralized in `backend/db.js`. The presence of `backend/.env` indicates runtime configuration is externalized, likely for connection details and other secrets.

5. `gap_db.sql` is a database dump/schema file at the repo root, which implies a relational database is part of the system and can be provisioned independently of the application code. This is the clearest persistence boundary in the repo.

6. Data flow is likely: React pages render the customer experience, then call backend endpoints over HTTP for auth, product details, cart/checkout actions, and persistence. The backend sits between the UI and the database, enforcing the application’s data access layer.

7. The architectural boundary is cleanly split between presentation and data/services: all interactive screens live in `src/pages`, while server-side concerns live in `backend/`. There is no evidence of shared server-side rendering or monorepo framework coupling.

8. Styling is handled with page-specific CSS files alongside the page components, plus global CSS at the app level. That means visual presentation is component-scoped rather than centralized in a design system.

9. Testing support is basic CRA scaffolding: `App.test.js`, `setupTests.js`, and `reportWebVitals.js`. These are supporting files rather than core runtime dependencies, so they do not materially change the runtime architecture.

10. In diagram terms, the main components are: browser/client UI, Node backend API, relational database, and the database schema/dump artifact. The key flow is user interaction in the React app → backend request handling → database read/write → response back to the UI.

Main entry points: [`backend/server.js`](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/server.js) (API server), [`src/App.js`](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/App.js) (Root app), [`src/index.js`](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/index.js) (App entry), [`public/index.html`](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/index.html) (HTML shell)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_frontend["Frontend"]
  node_public_index_html["HTML shell<br/>CRA entry<br/>[index.html]"]
  node_src_index_js["App entry<br/>React bootstrap<br/>[index.js]"]
  node_src_app_js["Root app<br/>React shell<br/>[App.js]"]
  node_src_app_css["App styles<br/>global css<br/>[App.css]"]
  node_src_index_css["Base styles<br/>global css<br/>[index.css]"]
  node_login_page["Login<br/>page component<br/>[Login.js]"]
  node_registro_page["Registro<br/>page component<br/>[Registro.js]"]
  node_producto_page["Producto<br/>page component<br/>[ProductoDetalle.js]"]
  node_carrito_page["Carrito<br/>page component<br/>[Carrito.js]"]
  node_checkout_page["Checkout<br/>page component<br/>[ProcesoCompra.js]"]
  node_manifest_json["Manifest<br/>PWA asset<br/>[manifest.json]"]
  node_robots_txt["Robots<br/>static asset<br/>[robots.txt]"]
end

subgraph group_backend["Backend"]
  node_backend_server_js["API server<br/>Express server<br/>[server.js]"]
  node_backend_db_js["DB access<br/>data layer<br/>[db.js]"]
  node_backend_env["Env config<br/>runtime config<br/>[.env]"]
end

subgraph group_data["Data"]
  node_gap_db_sql[("DB schema<br/>sql dump<br/>[gap_db.sql]")]
  node_database[("Database<br/>relational store")]
end

node_public_index_html -->|"loads"| node_src_index_js
node_src_index_js -->|"mounts"| node_src_app_js
node_src_index_js -->|"imports"| node_src_app_css
node_src_index_js -->|"imports"| node_src_index_css
node_src_app_js -->|"renders"| node_login_page
node_src_app_js -->|"renders"| node_registro_page
node_src_app_js -->|"renders"| node_producto_page
node_src_app_js -->|"renders"| node_carrito_page
node_src_app_js -->|"renders"| node_checkout_page
node_login_page -->|"requests"| node_backend_server_js
node_registro_page -->|"requests"| node_backend_server_js
node_producto_page -->|"requests"| node_backend_server_js
node_carrito_page -->|"requests"| node_backend_server_js
node_checkout_page -->|"requests"| node_backend_server_js
node_backend_server_js -->|"uses"| node_backend_db_js
node_backend_server_js -->|"reads"| node_backend_env
node_backend_db_js -->|"reads/writes"| node_database
node_gap_db_sql -->|"provisions"| node_database
node_manifest_json -.->|"supports"| node_public_index_html
node_robots_txt -.->|"supports"| node_public_index_html

click node_public_index_html "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/index.html"
click node_src_index_js "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/index.js"
click node_src_app_js "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/App.js"
click node_src_app_css "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/App.css"
click node_src_index_css "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/index.css"
click node_login_page "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/Login.js"
click node_registro_page "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/Registro.js"
click node_producto_page "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/ProductoDetalle.js"
click node_carrito_page "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/Carrito.js"
click node_checkout_page "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/ProcesoCompra.js"
click node_backend_server_js "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/server.js"
click node_backend_db_js "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/db.js"
click node_backend_env "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/.env"
click node_manifest_json "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/manifest.json"
click node_robots_txt "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/robots.txt"
click node_gap_db_sql "https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/gap_db.sql"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_public_index_html,node_src_index_js,node_src_app_js,node_src_app_css,node_src_index_css,node_login_page,node_registro_page,node_producto_page,node_carrito_page,node_checkout_page,node_manifest_json,node_robots_txt toneBlue
class node_backend_server_js,node_backend_db_js,node_backend_env toneAmber
class node_gap_db_sql,node_database toneMint
```

## Components

### Frontend

React single-page app and UI screens

- [HTML shell](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/index.html): CRA entry · Single HTML mount point for the React app · `public/index.html`
- [App entry](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/index.js): React bootstrap · Mounts the root React tree · `src/index.js`
- [Root app](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/App.js): React shell · Top-level application component · `src/App.js`
- [App styles](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/App.css): global css · Global application styling · `src/App.css`
- [Base styles](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/index.css): global css · Base page styling for the SPA · `src/index.css`
- [Login](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/Login.js): page component · User sign-in screen · `src/pages/Login.js`
- [Registro](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/Registro.js): page component · User registration screen · `src/pages/Registro.js`
- [Producto](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/ProductoDetalle.js): page component · Product detail screen · `src/pages/ProductoDetalle.js`
- [Carrito](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/Carrito.js): page component · Shopping cart screen · `src/pages/Carrito.js`
- [Checkout](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/src/pages/ProcesoCompra.js): page component · Purchase flow screen · `src/pages/ProcesoCompra.js`
- [Manifest](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/manifest.json): PWA asset · Web app manifest for CRA deployment · `public/manifest.json`
- [Robots](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/public/robots.txt): static asset · Crawler directive file · `public/robots.txt`

### Backend

Node.js API and data access

- [API server](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/server.js): Express server · HTTP server and route handling · `backend/server.js`
- [DB access](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/db.js): data layer · Centralized database connection and queries · `backend/db.js`
- [Env config](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/backend/.env): runtime config · Backend environment settings and secrets · `backend/.env`

### Data

Database and schema artifact

- [DB schema](https://github.com/juanospinanz-byte/proyectointegrador1/blob/main/gap_db.sql): sql dump · Relational database dump or provisioning script · `gap_db.sql`
- **Database**: relational store · Persistent application data store

## Connections

- HTML shell → App entry: loads · HTML shell loads the React bundle
- App entry → Root app: mounts · Bootstraps the root app component
- App entry → App styles: imports · Includes global application styles
- App entry → Base styles: imports · Includes base page styles
- Root app → Login: renders · Routes or shows the login screen
- Root app → Registro: renders · Routes or shows the registration screen
- Root app → Producto: renders · Routes or shows the product detail screen
- Root app → Carrito: renders · Routes or shows the cart screen
- Root app → Checkout: renders · Routes or shows the checkout screen
- Login → API server: requests · Uses the backend for authentication
- Registro → API server: requests · Uses the backend for account creation
- Producto → API server: requests · Uses the backend for product data
- Carrito → API server: requests · Uses the backend for cart actions
- Checkout → API server: requests · Uses the backend for purchase completion
- API server → DB access: uses · Delegates persistence logic to the data layer
- API server → Env config: reads · Loads runtime configuration
- DB access → Database: reads/writes · Executes database operations
- DB schema → Database: provisions · Defines or seeds the relational database
- Manifest → HTML shell: supports · Provides PWA metadata for the shell
- Robots → HTML shell: supports · Provides crawler metadata for deployment