👤 User Management System (Node.js + Express + EJS)

This is a lightweight and educational User Management App built with Node.js, Express.js, and EJS templating engine. It allows users to be added via a frontend form, lists all users via an API route, and supports filtering via query parameters. Data is stored locally using the built-in fs module — no database or login system is used.

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🚀 Features

• 📝 Add new users through a styled EJS form
• 📄 Store user data in a local users.json file
• 🔍 Filter users by name, age, city, gender via query parameters
• ❌ Rejects duplicate emails and a specific name ("john")
• 📊 Displays success/error messages with full styling

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🌐 Routes Overview

Method	Route	Description
GET	/	Home/info page
GET	/add-user	Form to add a new user
POST	/users	Handle user form submission
GET	/users	Returns filtered user list in JSON

Example Filter:

/users?city=Karachi&gender=female

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📄 Sample Form Inputs

Form at /add-user includes:

• Name
• Age
• Email
• Gender (radio buttons)
• City

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🧠 Validations & Rules

• name, age, email, gender, and city are required
• email must be unique (checked against users.json)
• name = john is blocked for demo purposes

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🛠 Tech Stack

• Node.js
• Express.js
• EJS Templating Engine
• fs module (for local JSON storage)

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🔧 How to Run

1. Clone the repository:

• git clone https://github.com/YOUR_USERNAME/User-Management-App.git

• cd User-Management-App

• Install dependencies:

• npm install

• Start the server:

• node index.js

• Open in browser: 👉 http://localhost:3000

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📦 Sample users.json Entry

• json

{
  "name": "Ali",
  "age": 25,
  "email": "ali@example.com",
  "gender": "male",
  "city": "Lahore"
}

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🤝 Acknowledgments

• This project was created as part of learning during my studies at Baitussalam Techpark.