📝 Daily Tracker & Auth REST API

A light, high-performance RESTful API built with Node.js (ES Modules), Express.js, and Neon Serverless PostgreSQL. Features secure password hashing with bcrypt, CRUD operations for user logs, centralized error handling, and zero-config deployment to Vercel.

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🛠️ Tech Stack

• Runtime: Node.js (ES6+ ES Modules)
• Framework: Express.js
• Database: PostgreSQL (Hosted on Neon)
• Database Client: pg (node-postgres with connection pooling)
• Security: bcrypt / bcryptjs password hashing
• Deployment: Vercel Serverless Functions

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🚀 Features

• User Authentication: Secure registration and login flow with bcrypt salt hashing.
• Log Management: Full CRUD (Create, Read, Update, Delete) capability for user daily entries.
• Centralized Async Handling: Async wrapper to eliminate boilerplate try...catch blocks.
• Production-Ready Security: Environment variable isolation for database secrets using dotenv.
• Serverless Prepared: Modularized setup with vercel.json for rapid deployment.

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📁 Project Structure

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├── middleware/
│   └── errorHandler.js    # Async wrapper & centralized error handler
├── public/                # Static assets & frontend UI
├── .env.example           # Example environment template
├── .gitignore             # Git exclusion rules
├── db.js                  # PostgreSQL Pool configuration
├── package.json           # Dependencies and scripts
├── server.js              # Express app routing and configuration
├── vercel.json            # Vercel deployment routing rules
└── README.md              # Project documentation