Laundry Management System

The Laundry Management System is a lightweight RESTful API built with ASP.NET Core and Entity Framework Core.
It is designed to manage customers, their purchase history, and washing machine inventory in a structured, consistent, and easily extendable way.

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Table of Contents

• Overview
• Tech Stack
• API Endpoints
• Example Output

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Overview

This API acts as the backend for a simple laundry business scenario.
It supports:

• Managing customer records and their interactions with the service.
• Registering and configuring washing machines with multiple programs.
• Tracking purchases, including dates, prices, and customer ratings.
• Providing structured JSON responses for easy integration with front-end applications or third-party services.

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Tech Stack

• ASP.NET Core – for building robust and high-performance REST APIs.
• C# – the main programming language used throughout the project.
• Entity Framework Core – for data persistence and interaction with the database using an ORM approach.

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API Endpoints

Customers

Method	Endpoint	Description
GET	/api/customers/{id}/purchases	Retrieve all purchase records for a specific customer, including machine and program details.

Washing Machines

Method	Endpoint	Description
POST	/api/washing-machines	Register a new washing machine along with its available washing programs.

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Example Output

GET /api/customers/{id}/purchases – Retrieve customer purchase history

{
  "firstName": "John",
  "lastName": "Doe",
  "phoneNumber": null,
  "purchases": [
    {
      "date": "2025-06-03T09:00:00",
      "rating": 4,
      "price": 33.4,
      "washingMachine": {
        "serial": "WM2012/S431/12",
        "maxWeight": 32.23
      },
      "program": {
        "name": "Quick Wash",
        "duration": 69
      }
    },
    {
      "date": "2025-06-04T09:00:00",
      "rating": null,
      "price": 48.7,
      "washingMachine": {
        "serial": "WM2014/S491/28",
        "maxWeight": 52.23
      },
      "program": {
        "name": "Cotton Cycle",
        "duration": 143
      }
    }
  ]
}

POST /api/washing-machines – Create a new washing machine

{
  "washingMachine": {
    "maxWeight": 9.52,
    "serialNumber": "WM2025/S1431/13"
  },
  "availablePrograms": [
    {
      "programName": "Quick Wash",
      "price": 12.99
    },
    {
      "programName": "Cotton Cycle",
      "price": 17.29
    },
    {
      "programName": "Synthetic",
      "price": 23.99
    }
  ]
}