🛍️ PriceWise – Amazon Price Tracker

PriceWise is a full-stack price tracker app that scrapes Amazon product data and notifies users when prices drop. Built using Next.js, MongoDB, Cheerio, Bright Data, and Nodemailer, this tool helps users track products, view historical price trends, and receive email alerts—all automatically through scheduled cron jobs.

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🚀 Features

• 🔍 Amazon Scraper: Extracts product info like title, image, price (current/original), discount %, availability, rating, and review count using Cheerio.
• 💰 Price Analytics: Tracks average, highest, and lowest prices over time.
• 📬 Email Notifications: Sends automatic alerts when a product’s price drops.
• ⏰ Cron Jobs: Uses cronjob.org to run scheduled scraping and email logic.
• ☁️ MongoDB Integration: Stores product data and historical price logs efficiently.
• 📦 Bright Data Proxy: Scrapes Amazon reliably using residential proxy rotation.

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🧠 Project Structure

/lib
  ├── scraper.js             # Cheerio scraping logic
  ├── mongoose.js            # DB connection
  ├── utils.js               # Price utilities (avg, min, max)
  └── nodemailer/index.js    # Email setup and sender

/models
  └── product.model.js       # MongoDB schema for products

/app/api
  └── scrape/route.js        # API endpoint to trigger scraping

/public
  └── images/                # Fallback assets or UI icons

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🛠️ Setup Instructions

1. Clone the repo

   git clone https://github.com/siddhantsaxena45/pricewise.git
   cd pricewise

2. Install dependencies

   npm install

3. Configure environment Create a .env.local file:

   MONGODB_URI=your_mongodb_connection_string
   BRIGHTDATA_PROXY=http://username:password@proxy.brightdata.io:port
   EMAIL_USER=your_email@example.com
   EMAIL_PASS=your_app_password

4. Run locally

   npm run dev

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🔁 Setting Up Cron Job

Use cronjob.org or any scheduler to trigger scraping:

Endpoint to call (POST):

https://yourdomain.com/api/cron

Recommended interval: every 12 or 24 hours.

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📧 Email Notification Example

When a price drops below the user's target or the lowest historical average, an email is sent like:

Subject: Price Drop Alert! Body: Your watched item "Samsung SSD" dropped to ₹3,999! Click to check it out.

Emails are sent using Nodemailer through your Gmail or SMTP provider.

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📊 Sample Scraped Data

{
  "title": "Noise ColorFit Pulse 2 Max Smart Watch",
  "currentPrice": 1499,
  "originalPrice": 3999,
  "discountRate": 63,
  "image": "https://m.media-amazon.com/...",
  "rating": 4.2,
  "reviewsCount": 4200,
  "availability": "In Stock"
}

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✨ Technologies Used

• Next.js 14 (App Router)
• MongoDB + Mongoose
• Cheerio (Web Scraper)
• Bright Data Proxy
• Nodemailer
• Cronjob.org
• Tailwind CSS (optional for frontend)

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📌 Future Improvements

• ✅ Add user authentication and product dashboards
• 📈 Integrate chart view for price history
• 📱 Build mobile-friendly UI
• 🛡️ Add CAPTCHA bypass for scraper
• 🧠 AI-based prediction of future price drops

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