CRM Backend App

A simple and scalable CRM (Customer Relationship Management) backend built with Node.js, Express.js, MongoDB, and Mongoose. It includes secure JWT authentication, bcrypt password hashing, and role-based access control for Admin and Users.

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📁 Project Structure

crm-backend/
├── config/
│   └── connectDB.js        # Database connection setup
│
├── controller/
│   ├── auth.controller.js  # Signup & Signin logic
│   └── user.controller.js  # User CRUD operations
│
├── middleWare/
│   ├── verifyUserRequest.mw.js
│   ├── VerifyUserRequest.mw.js
│   ├── adminAuth.mw.js
│   └── ...
│
├── model/
│   └── user.model.js       # Mongoose user schema
│
├── router/
│   ├── api.router.js       # Base route aggregator
│   ├── auth/
│   │   └── auth.router.js
│   └── user/
│       └── user.router.js
│
├── .env                    # Environment variables
├── package.json
└── server.js               # Main entry file

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⚙️ Installation & Setup

1️⃣ Clone the repository

git clone https://github.com/<your-username>/crm-backend.git
cd crm-backend

2️⃣ Install dependencies

npm install

3️⃣ Configure environment variables

Create a .env file in the root directory and add:

PORT=7777
MONGO_URI=mongodb+srv://<username>:<password>@cluster.mongodb.net/crm
JWT_SECRET=<your-secret-key>

4️⃣ Run the server

node index.js

Server will start on:

http://localhost:7777

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🧠 Features

✅ User authentication (signup & signin) ✅ JWT-based secure session management ✅ Role-based authorization (Admin, User) ✅ Admin can view and manage all users ✅ Input validation middleware ✅ Modular & maintainable folder structure

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🔐 API Endpoints Overview

Method	Endpoint	Description	Access
POST	/crm/api/v1/auth/signup	Register a new user	Public
POST	/crm/api/v1/auth/signin	Sign in a user	Public
GET	/crm/api/v1/users/	Get all users	Admin only
GET	/crm/api/v1/users/:id	Get a user by ID	Admin only
PUT	/crm/api/v1/users/:id	Update user details	Admin only

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🧑‍💻 Author

dc