# iqbal7379/suppliermanagementsystemapp architecture

> Architecture diagram of the GitHub repository iqbal7379/suppliermanagementsystemapp, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/iqbal7379/suppliermanagementsystemapp
- Repository: https://github.com/iqbal7379/suppliermanagementsystemapp

## Overview

Supplier Management System is a Spring Boot REST backend. A client sends resource requests to controllers, which delegate to services; services apply entity-level checks and operations, then return response-wrapped results. The API covers supplier CRUD plus customer, product, and order management, including relationship and query features such as pagination. Services call DAOs; the supplied repository interfaces use Spring Data JPA, with MySQL documented as the database. DAO-to-repository wiring is not shown in the sampled source, so that link is omitted.

Main entry points: [`src/main/java/com/supplier/service/OrdersService.java`](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/OrdersService.java) (Orders Service), [`src/main/java/com/supplier/service/ProductsService.java`](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/ProductsService.java) (Products Service), [`src/main/java/com/supplier/dto/ResponseStructure.java`](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dto/ResponseStructure.java) (Response DTO), [`src/main/java/com/supplier/service/SupplierService.java`](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/SupplierService.java) (Supplier Service)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_api["REST API"]
  node_supplier_controller["Supplier API"]
  node_customer_controller["Customer API"]
  node_products_controller["Products API"]
  node_orders_controller["Orders API"]
end

subgraph group_logic["Business Services"]
  node_supplier_service["Supplier Service"]
  node_customer_service["Customer Service"]
  node_products_service["Products Service"]
  node_orders_service["Orders Service<br/>[OrdersService.java]"]
end

subgraph group_persistence["Persistence"]
  node_supplier_dao["Supplier DAO<br/>[SupplierDao.java]"]
  node_customer_dao["Customer DAO<br/>[CustomerDao.java]"]
  node_products_dao["Products DAO<br/>[ProductsDao.java]"]
  node_orders_dao["Orders DAO<br/>[OrdersDao.java]"]
  node_supplier_repository["Supplier Repository"]
  node_customer_repository["Customer Repository"]
  node_products_repository["Products Repository"]
  node_orders_repository["Orders Repository"]
end

subgraph group_domain["Domain And Responses"]
  node_entities["Resource Entities"]
  node_response_dto["Response DTO"]
end

node_client(("API Client"))
node_mysql[("MySQL")]

node_client -->|"sends requests"| node_supplier_controller
node_client -->|"sends requests"| node_customer_controller
node_client -->|"sends requests"| node_products_controller
node_client -->|"sends requests"| node_orders_controller
node_supplier_controller -->|"delegates"| node_supplier_service
node_customer_controller -->|"delegates"| node_customer_service
node_products_controller -->|"delegates"| node_products_service
node_orders_controller -->|"delegates"| node_orders_service
node_supplier_service -->|"calls"| node_supplier_dao
node_customer_service -->|"calls"| node_customer_dao
node_products_service -->|"calls"| node_products_dao
node_orders_service -->|"calls"| node_orders_dao
node_orders_service -->|"resolves customer"| node_customer_dao
node_orders_service -->|"resolves products"| node_products_dao
node_products_service -->|"resolves supplier"| node_supplier_dao
node_supplier_repository -->|"persists entities"| node_mysql
node_customer_repository -->|"persists entities"| node_mysql
node_orders_repository -->|"persists entities"| node_mysql
node_supplier_service -->|"builds response"| node_response_dto
node_customer_service -->|"builds response"| node_response_dto
node_products_service -->|"builds response"| node_response_dto
node_orders_service -->|"builds response"| node_response_dto

click node_supplier_controller "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/SupplierController.java"
click node_customer_controller "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/CustomerController.java"
click node_products_controller "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/ProductsController.java"
click node_orders_controller "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/OrdersController.java"
click node_supplier_service "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/SupplierService.java"
click node_customer_service "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/CustomerService.java"
click node_products_service "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/ProductsService.java"
click node_orders_service "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/OrdersService.java"
click node_supplier_dao "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/SupplierDao.java"
click node_customer_dao "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/CustomerDao.java"
click node_products_dao "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/ProductsDao.java"
click node_orders_dao "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/OrdersDao.java"
click node_supplier_repository "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/SupplierRepository.java"
click node_customer_repository "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/CustomerRepository.java"
click node_products_repository "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/ProductsRepository.java"
click node_orders_repository "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/OrdersRepository.java"
click node_entities "https://github.com/iqbal7379/suppliermanagementsystemapp/tree/main/src/main/java/com/supplier/entity"
click node_response_dto "https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dto/ResponseStructure.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_supplier_controller,node_customer_controller,node_products_controller,node_orders_controller,node_client toneBlue
class node_supplier_service,node_customer_service,node_products_service,node_orders_service,node_mysql toneAmber
class node_supplier_dao,node_customer_dao,node_products_dao,node_orders_dao,node_supplier_repository,node_customer_repository,node_products_repository,node_orders_repository toneMint
class node_entities,node_response_dto toneRose
```

## Components

### REST API

- [Supplier API](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/SupplierController.java): `src/main/java/com/supplier/controller/SupplierController.java`
- [Customer API](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/CustomerController.java): `src/main/java/com/supplier/controller/CustomerController.java`
- [Products API](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/ProductsController.java): `src/main/java/com/supplier/controller/ProductsController.java`
- [Orders API](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/controller/OrdersController.java): `src/main/java/com/supplier/controller/OrdersController.java`

### Business Services

- [Supplier Service](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/SupplierService.java): `src/main/java/com/supplier/service/SupplierService.java`
- [Customer Service](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/CustomerService.java): `src/main/java/com/supplier/service/CustomerService.java`
- [Products Service](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/ProductsService.java): `src/main/java/com/supplier/service/ProductsService.java`
- [Orders Service](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/service/OrdersService.java): `src/main/java/com/supplier/service/OrdersService.java`

### Persistence

- [Supplier DAO](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/SupplierDao.java): `src/main/java/com/supplier/dao/SupplierDao.java`
- [Customer DAO](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/CustomerDao.java): `src/main/java/com/supplier/dao/CustomerDao.java`
- [Products DAO](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/ProductsDao.java): `src/main/java/com/supplier/dao/ProductsDao.java`
- [Orders DAO](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dao/OrdersDao.java): `src/main/java/com/supplier/dao/OrdersDao.java`
- [Supplier Repository](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/SupplierRepository.java): `src/main/java/com/supplier/repository/SupplierRepository.java`
- [Customer Repository](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/CustomerRepository.java): `src/main/java/com/supplier/repository/CustomerRepository.java`
- [Products Repository](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/ProductsRepository.java): `src/main/java/com/supplier/repository/ProductsRepository.java`
- [Orders Repository](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/repository/OrdersRepository.java): `src/main/java/com/supplier/repository/OrdersRepository.java`

### Domain And Responses

- [Resource Entities](https://github.com/iqbal7379/suppliermanagementsystemapp/tree/main/src/main/java/com/supplier/entity): `src/main/java/com/supplier/entity`
- [Response DTO](https://github.com/iqbal7379/suppliermanagementsystemapp/blob/main/src/main/java/com/supplier/dto/ResponseStructure.java): `src/main/java/com/supplier/dto/ResponseStructure.java`

### Other components

- **API Client**
- **MySQL**

## Connections

- API Client → Supplier API: sends requests
- API Client → Customer API: sends requests
- API Client → Products API: sends requests
- API Client → Orders API: sends requests
- Supplier API → Supplier Service: delegates
- Customer API → Customer Service: delegates
- Products API → Products Service: delegates
- Orders API → Orders Service: delegates
- Supplier Service → Supplier DAO: calls
- Customer Service → Customer DAO: calls
- Products Service → Products DAO: calls
- Orders Service → Orders DAO: calls
- Orders Service → Customer DAO: resolves customer
- Orders Service → Products DAO: resolves products
- Products Service → Supplier DAO: resolves supplier
- Supplier Repository → MySQL: persists entities
- Customer Repository → MySQL: persists entities
- Orders Repository → MySQL: persists entities
- Supplier Service → Response DTO: builds response
- Customer Service → Response DTO: builds response
- Products Service → Response DTO: builds response
- Orders Service → Response DTO: builds response