# jvivekvardhan/ecommers architecture

> Architecture diagram of the GitHub repository jvivekvardhan/ecommers, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/jvivekvardhan/ecommers
- Repository: https://github.com/jvivekvardhan/ecommers

## Overview

This repository is a product-catalog application with a React frontend and a Spring backend. The user-facing flow loads products and categories, then filters products by category and name and sorts by price before rendering product cards. The tree also shows distinct backend API, service, model, repository, and seed-data layers. Backend source was not excerpted, and the README is empty, so backend-internal relationships are shown only as unverified dashed links; the frontend’s HTTP requests are visible in App.jsx.

Main entry points: [`productcatalog/ecome-catalog-react/src/App.jsx`](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/App.jsx) (Catalog app), [`productcatalog/src/main/java/com/example/productcatalog/controller/ProductController.java`](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/controller/ProductController.java) (Product API), [`productcatalog/src/main/java/com/example/productcatalog/config/DataSeeder.java`](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/config/DataSeeder.java) (Data seeder), [`productcatalog/ecome-catalog-react/src/main.jsx`](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/main.jsx) (React entry)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_frontend["Catalog UI"]
  node_app_entry["React entry<br/>[main.jsx]"]
  node_catalog_app["Catalog app<br/>[App.jsx]"]
  node_category_filter["Category filter<br/>[CategoryFilter.jsx]"]
  node_product_list["Product cards<br/>[ProductList.jsx]"]
end

subgraph group_backend["Catalog Backend"]
  node_product_controller["Product API"]
  node_category_controller["Category API"]
  node_product_service["Product service"]
  node_category_service["Category service"]
  node_application["Spring application"]
end

subgraph group_domain["Catalog Data"]
  node_product_repository["Product repository"]
  node_category_repository["Category repository"]
  node_product_model["Product model<br/>[Product.java]"]
  node_category_model["Category model<br/>[Category.java]"]
  node_product_dto["Product DTO<br/>[ProductDTO.java]"]
  node_data_seeder["Data seeder<br/>[DataSeeder.java]"]
end

node_user(("Catalog user"))
node_catalog_api{{"Catalog API"}}

node_user -.->|"opens"| node_app_entry
node_app_entry -->|"renders"| node_catalog_app
node_catalog_app -->|"renders"| node_category_filter
node_catalog_app -->|"renders"| node_product_list
node_catalog_app -->|"fetches products and categories"| node_catalog_api
node_catalog_api -.->|"routes product requests"| node_product_controller
node_catalog_api -.->|"routes category requests"| node_category_controller
node_product_controller -.->|"delegates to"| node_product_service
node_category_controller -.->|"delegates to"| node_category_service
node_product_service -.->|"uses"| node_product_repository
node_category_service -.->|"uses"| node_category_repository
node_product_repository -.->|"persists"| node_product_model
node_category_repository -.->|"persists"| node_category_model
node_product_controller -.->|"uses"| node_product_dto
node_data_seeder -.->|"seeds"| node_product_model
node_data_seeder -.->|"seeds"| node_category_model

click node_app_entry "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/main.jsx"
click node_catalog_app "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/App.jsx"
click node_category_filter "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/CategoryFilter.jsx"
click node_product_list "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/ProductList.jsx"
click node_product_controller "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/controller/ProductController.java"
click node_category_controller "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/controller/CategoryController.java"
click node_product_service "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/service/ProductService.java"
click node_category_service "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/service/CategoryService.java"
click node_product_repository "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/repository/ProductRepository.java"
click node_category_repository "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/repository/CategoryRepository.java"
click node_product_model "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/model/Product.java"
click node_category_model "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/model/Category.java"
click node_product_dto "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/dto/ProductDTO.java"
click node_data_seeder "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/config/DataSeeder.java"
click node_application "https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/ProductcatalogApplication.java"

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_app_entry,node_catalog_app,node_category_filter,node_product_list,node_user toneBlue
class node_product_controller,node_category_controller,node_product_service,node_category_service,node_application toneAmber
class node_product_repository,node_category_repository,node_product_model,node_category_model,node_product_dto,node_data_seeder,node_catalog_api toneMint
```

## Components

### Catalog UI

- [React entry](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/main.jsx): `productcatalog/ecome-catalog-react/src/main.jsx`
- [Catalog app](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/App.jsx): `productcatalog/ecome-catalog-react/src/App.jsx`
- [Category filter](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/CategoryFilter.jsx): `productcatalog/ecome-catalog-react/src/CategoryFilter.jsx`
- [Product cards](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/ecome-catalog-react/src/ProductList.jsx): `productcatalog/ecome-catalog-react/src/ProductList.jsx`

### Catalog Backend

- [Product API](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/controller/ProductController.java): `productcatalog/src/main/java/com/example/productcatalog/controller/ProductController.java`
- [Category API](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/controller/CategoryController.java): `productcatalog/src/main/java/com/example/productcatalog/controller/CategoryController.java`
- [Product service](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/service/ProductService.java): `productcatalog/src/main/java/com/example/productcatalog/service/ProductService.java`
- [Category service](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/service/CategoryService.java): `productcatalog/src/main/java/com/example/productcatalog/service/CategoryService.java`
- [Spring application](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/ProductcatalogApplication.java): `productcatalog/src/main/java/com/example/productcatalog/ProductcatalogApplication.java`

### Catalog Data

- [Product repository](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/repository/ProductRepository.java): `productcatalog/src/main/java/com/example/productcatalog/repository/ProductRepository.java`
- [Category repository](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/repository/CategoryRepository.java): `productcatalog/src/main/java/com/example/productcatalog/repository/CategoryRepository.java`
- [Product model](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/model/Product.java): `productcatalog/src/main/java/com/example/productcatalog/model/Product.java`
- [Category model](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/model/Category.java): `productcatalog/src/main/java/com/example/productcatalog/model/Category.java`
- [Product DTO](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/dto/ProductDTO.java): `productcatalog/src/main/java/com/example/productcatalog/dto/ProductDTO.java`
- [Data seeder](https://github.com/jvivekvardhan/ecommers/blob/main/productcatalog/src/main/java/com/example/productcatalog/config/DataSeeder.java): `productcatalog/src/main/java/com/example/productcatalog/config/DataSeeder.java`

### Other components

- **Catalog user**
- **Catalog API**

## Connections

- Catalog user → React entry: opens
- React entry → Catalog app: renders (evidence: `productcatalog/ecome-catalog-react/src/main.jsx`)
- Catalog app → Category filter: renders (evidence: `productcatalog/ecome-catalog-react/src/App.jsx`)
- Catalog app → Product cards: renders (evidence: `productcatalog/ecome-catalog-react/src/App.jsx`)
- Catalog app → Catalog API: fetches products and categories (evidence: `productcatalog/ecome-catalog-react/src/App.jsx`)
- Catalog API → Product API: routes product requests
- Catalog API → Category API: routes category requests
- Product API → Product service: delegates to
- Category API → Category service: delegates to
- Product service → Product repository: uses
- Category service → Category repository: uses
- Product repository → Product model: persists
- Category repository → Category model: persists
- Product API → Product DTO: uses
- Data seeder → Product model: seeds
- Data seeder → Category model: seeds