Web Scraping Full Course 2023 | Build and Deploy eCommerce Price Tracker

cron.route.ts

import { NextResponse } from "next/server";

import { getLowestPrice, getHighestPrice, getAveragePrice, getEmailNotifType } from "@/lib/utils";
import { connectToDB } from "@/lib/mongoose";
import Product from "@/lib/models/product.model";
import { scrapeAmazonProduct } from "@/lib/scraper";
import { generateEmailBody, sendEmail } from "@/lib/nodemailer";

export const maxDuration = 300; // This function can run for a maximum of 300 seconds
export const dynamic = "force-dynamic";
export const revalidate = 0;

export async function GET(request: Request) {
  try {
    connectToDB();

    const products = await Product.find({});

    if (!products) throw new Error("No product fetched");

    // ======================== 1 SCRAPE LATEST PRODUCT DETAILS & UPDATE DB
    const updatedProducts = await Promise.all(
      products.map(async (currentProduct) => {
        // Scrape product
        const scrapedProduct = await scrapeAmazonProduct(currentProduct.url);

        if (!scrapedProduct) return;

        const updatedPriceHistory = [
          ...currentProduct.priceHistory,
          {
            price: scrapedProduct.currentPrice,
          },
        ];

        const product = {
          ...scrapedProduct,
          priceHistory: updatedPriceHistory,
          lowestPrice: getLowestPrice(updatedPriceHistory),
          highestPrice: getHighestPrice(updatedPriceHistory),
          averagePrice: getAveragePrice(updatedPriceHistory),
        };

        // Update Products in DB
        const updatedProduct = await Product.findOneAndUpdate(
          {
            url: product.url,
          },
          product
        );

        // ======================== 2 CHECK EACH PRODUCT'S STATUS & SEND EMAIL ACCORDINGLY
        const emailNotifType = getEmailNotifType(
          scrapedProduct,
          currentProduct
        );

        if (emailNotifType && updatedProduct.users.length > 0) {
          const productInfo = {
            title: updatedProduct.title,
            url: updatedProduct.url,
          };
          // Construct emailContent
          const emailContent = await generateEmailBody(productInfo, emailNotifType);
          // Get array of user emails
          const userEmails = updatedProduct.users.map((user: any) => user.email);
          // Send email notification
          await sendEmail(emailContent, userEmails);
        }

        return updatedProduct;
      })
    );

    return NextResponse.json({
      message: "Ok",
      data: updatedProducts,
    });
  } catch (error: any) {
    throw new Error(`Failed to get all products: ${error.message}`);
  }
}

generateEmailBody.ts

export async function generateEmailBody(
  product: EmailProductInfo,
  type: NotificationType
  ) {
  const THRESHOLD_PERCENTAGE = 40;
  // Shorten the product title
  const shortenedTitle =
    product.title.length > 20
      ? `${product.title.substring(0, 20)}...`
      : product.title;

  let subject = "";
  let body = "";

  switch (type) {
    case Notification.WELCOME:
      subject = `Welcome to Price Tracking for ${shortenedTitle}`;
      body = `
        <div>
          <h2>Welcome to PriceWise 🚀</h2>
          <p>You are now tracking ${product.title}.</p>
          <p>Here's an example of how you'll receive updates:</p>
          <div style="border: 1px solid #ccc; padding: 10px; background-color: #f8f8f8;">
            <h3>${product.title} is back in stock!</h3>
            <p>We're excited to let you know that ${product.title} is now back in stock.</p>
            <p>Don't miss out - <a href="${product.url}" target="_blank" rel="noopener noreferrer">buy it now</a>!</p>
            <img src="https://i.ibb.co/pwFBRMC/Screenshot-2023-09-26-at-1-47-50-AM.png" alt="Product Image" style="max-width: 100%;" />
          </div>
          <p>Stay tuned for more updates on ${product.title} and other products you're tracking.</p>
        </div>
      `;
      break;

    case Notification.CHANGE_OF_STOCK:
      subject = `${shortenedTitle} is now back in stock!`;
      body = `
        <div>
          <h4>Hey, ${product.title} is now restocked! Grab yours before they run out again!</h4>
          <p>See the product <a href="${product.url}" target="_blank" rel="noopener noreferrer">here</a>.</p>
        </div>
      `;
      break;

    case Notification.LOWEST_PRICE:
      subject = `Lowest Price Alert for ${shortenedTitle}`;
      body = `
        <div>
          <h4>Hey, ${product.title} has reached its lowest price ever!!</h4>
          <p>Grab the product <a href="${product.url}" target="_blank" rel="noopener noreferrer">here</a> now.</p>
        </div>
      `;
      break;

    case Notification.THRESHOLD_MET:
      subject = `Discount Alert for ${shortenedTitle}`;
      body = `
        <div>
          <h4>Hey, ${product.title} is now available at a discount more than ${THRESHOLD_PERCENTAGE}%!</h4>
          <p>Grab it right away from <a href="${product.url}" target="_blank" rel="noopener noreferrer">here</a>.</p>
        </div>
      `;
      break;

    default:
      throw new Error("Invalid notification type.");
  }

  return { subject, body };
}

globals.css

@tailwind base;
@tailwind components;
@tailwind utilities;

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

@layer base {
  body {
    @apply font-inter;
  }
}

@layer utilities {
  .btn {
    @apply py-4 px-4 bg-secondary hover:bg-opacity-70 rounded-[30px] text-white text-lg font-semibold;
  }

  .head-text {
    @apply mt-4 text-6xl leading-[72px] font-bold tracking-[-1.2px] text-gray-900;
  }

  .section-text {
    @apply text-secondary text-[32px] font-semibold;
  }

  .small-text {
    @apply flex gap-2 text-sm font-medium text-primary;
  }

  .paragraph-text {
    @apply text-xl leading-[30px] text-gray-600;
  }

  .hero-carousel {
    @apply relative sm:px-10 py-5 sm:pt-20 pb-5 max-w-[560px] h-[700px] w-full bg-[#F2F4F7] rounded-[30px] sm:mx-auto;
  }

  .carousel {
    @apply flex flex-col-reverse h-[700px];
  }

  .carousel .control-dots {
    @apply static !important;
  }

  .carousel .control-dots .dot {
    @apply w-[10px] h-[10px] bg-[#D9D9D9] rounded-full bottom-0 !important;
  }

  .carousel .control-dots .dot.selected {
    @apply bg-[#475467] !important;
  }

  .trending-section {
    @apply flex flex-col gap-10 px-6 md:px-20 py-24;
  }

  /* PRODUCT DETAILS PAGE STYLES */
  .product-container {
    @apply flex flex-col gap-16 flex-wrap px-6 md:px-20 py-24;
  }

  .product-image {
    @apply flex-grow xl:max-w-[50%] max-w-full py-16 border border-[#CDDBFF] rounded-[17px];
  }

  .product-info {
    @apply flex items-center flex-wrap gap-10 py-6 border-y border-y-[#E4E4E4];
  }

  .product-hearts {
    @apply flex items-center gap-2 px-3 py-2 bg-[#FFF0F0] rounded-10;
  }

  .product-stars {
    @apply flex items-center gap-2 px-3 py-2 bg-[#FBF3EA] rounded-[27px];
  }

  .product-reviews {
    @apply flex items-center gap-2 px-3 py-2 bg-white-200 rounded-[27px];
  }

  /* MODAL */
  .dialog-container {
    @apply fixed inset-0 z-10 overflow-y-auto bg-black bg-opacity-60;
  }

  .dialog-content {
    @apply p-6  bg-white inline-block w-full max-w-md my-8 overflow-hidden text-left align-middle transition-all transform  shadow-xl rounded-2xl;
  }

  .dialog-head_text {
    @apply text-secondary text-lg leading-[24px] font-semibold mt-4;
  }

  .dialog-input_container {
    @apply px-5 py-3 mt-3 flex items-center gap-2 border border-gray-300 rounded-[27px];
  }

  .dialog-input {
    @apply flex-1 pl-1 border-none text-gray-500 text-base focus:outline-none border border-gray-300 rounded-[27px] shadow-xs;
  }

  .dialog-btn {
    @apply px-5 py-3 text-white text-base font-semibold border border-secondary bg-secondary rounded-lg mt-8;
  }

  /* NAVBAR */
  .nav {
    @apply flex justify-between items-center px-6 md:px-20 py-4;
  }

  .nav-logo {
    @apply font-spaceGrotesk text-[21px] text-secondary font-bold;
  }

  /* PRICE INFO */
  .price-info_card {
    @apply flex-1 min-w-[200px] flex flex-col gap-2 border-l-[3px] rounded-10 bg-white-100 px-5 py-4;
  }

  /* PRODUCT CARD */
  .product-card {
    @apply sm:w-[292px] sm:max-w-[292px] w-full flex-1 flex flex-col gap-4 rounded-md;
  }

  .product-card_img-container {
    @apply flex-1 relative flex flex-col gap-5 p-4 rounded-md;
  }

  .product-card_img {
    @apply max-h-[250px] object-contain w-full h-full bg-transparent;
  }

  .product-title {
    @apply text-secondary text-xl leading-6 font-semibold truncate;
  }

  /* SEARCHBAR INPUT */
  .searchbar-input {
    @apply flex-1 min-w-[200px] w-full p-3 border border-gray-300 rounded-lg shadow-xs text-base text-gray-500 focus:outline-none;
  }

  .searchbar-btn {
    @apply bg-gray-900 border border-gray-900 rounded-lg shadow-xs px-5 py-3 text-white text-base font-semibold hover:opacity-90 disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-40;
  }
}

index.scraper.ts

"use server"

import axios from 'axios';
import * as cheerio from 'cheerio';
import { extractCurrency, extractDescription, extractPrice } from '../utils';

export async function scrapeAmazonProduct(url: string) {
  if(!url) return;

  // BrightData proxy configuration
  const username = String(process.env.BRIGHT_DATA_USERNAME);
  const password = String(process.env.BRIGHT_DATA_PASSWORD);
  const port = 22225;
  const session_id = (1000000 * Math.random()) | 0;

  const options = {
    auth: {
      username: `${username}-session-${session_id}`,
      password,
    },
    host: 'brd.superproxy.io',
    port,
    rejectUnauthorized: false,
  }

  try {
    // Fetch the product page
    const response = await axios.get(url, options);
    const $ = cheerio.load(response.data);

    // Extract the product title
    const title = $('#productTitle').text().trim();
    const currentPrice = extractPrice(
      $('.priceToPay span.a-price-whole'),
      $('.a.size.base.a-color-price'),
      $('.a-button-selected .a-color-base'),
    );

    const originalPrice = extractPrice(
      $('#priceblock_ourprice'),
      $('.a-price.a-text-price span.a-offscreen'),
      $('#listPrice'),
      $('#priceblock_dealprice'),
      $('.a-size-base.a-color-price')
    );

    const outOfStock = $('#availability span').text().trim().toLowerCase() === 'currently unavailable';

    const images = 
      $('#imgBlkFront').attr('data-a-dynamic-image') || 
      $('#landingImage').attr('data-a-dynamic-image') ||
      '{}'

    const imageUrls = Object.keys(JSON.parse(images));

    const currency = extractCurrency($('.a-price-symbol'))
    const discountRate = $('.savingsPercentage').text().replace(/[-%]/g, "");

    const description = extractDescription($)

    // Construct data object with scraped information
    const data = {
      url,
      currency: currency || '$',
      image: imageUrls[0],
      title,
      currentPrice: Number(currentPrice) || Number(originalPrice),
      originalPrice: Number(originalPrice) || Number(currentPrice),
      priceHistory: [],
      discountRate: Number(discountRate),
      category: 'category',
      reviewsCount:100,
      stars: 4.5,
      isOutOfStock: outOfStock,
      description,
      lowestPrice: Number(currentPrice) || Number(originalPrice),
      highestPrice: Number(originalPrice) || Number(currentPrice),
      averagePrice: Number(currentPrice) || Number(originalPrice),
    }

    return data;
  } catch (error: any) {
    console.log(error);
  }
}

next.config.js

/** @type {import('next').NextConfig} */
const nextConfig = {
  experimental: {
    serverActions: true,
    serverComponentsExternalPackages: ['mongoose']
  },
  images: {
    domains: ['m.media-amazon.com']
  }
}

module.exports = nextConfig

public

https://drive.google.com/file/d/1v6h993BgYX6axBoIXFbZ9HQAgqbR4PSH/view?usp=sharing

tailwind.config.ts

/** @type {import('tailwindcss').Config} */
module.exports = {
  content: [
    "./pages/**/*.{js,ts,jsx,tsx,mdx}",
    "./components/**/*.{js,ts,jsx,tsx,mdx}",
    "./app/**/*.{js,ts,jsx,tsx,mdx}",
  ],
  theme: {
    extend: {
      colors: {
        primary: {
          DEFAULT: "#E43030",
          "orange": "#D48D3B",
          "green": "#3E9242"
        },
        secondary: "#282828",
        "gray-200": "#EAECF0",
        "gray-300": "D0D5DD",
        "gray-500": "#667085",
        "gray-600": "#475467",
        "gray-700": "#344054",
        "gray-900": "#101828",
        "white-100": "#F4F4F4",
        "white-200": "#EDF0F8",
        "black-100": "#3D4258",
        "neutral-black": "#23263B",
      },
      boxShadow: {
        xs: "0px 1px 2px 0px rgba(16, 24, 40, 0.05)",
      },
      maxWidth: {
        "10xl": '1440px'
      },
      fontFamily: {
        inter: ['Inter', 'sans-serif'],
        spaceGrotesk: ['Space Grotesk', 'sans-serif'],
      },
      borderRadius: {
        10: "10px"
      }
    },
  },
  plugins: [],
};

types.ts

export type PriceHistoryItem = {
  price: number;
};

export type User = {
  email: string;
};

export type Product = {
  _id?: string;
  url: string;
  currency: string;
  image: string;
  title: string;
  currentPrice: number;
  originalPrice: number;
  priceHistory: PriceHistoryItem[] | [];
  highestPrice: number;
  lowestPrice: number;
  averagePrice: number;
  discountRate: number;
  description: string;
  category: string;
  reviewsCount: number;
  stars: number;
  isOutOfStock: Boolean;
  users?: User[];
};

export type NotificationType =
  | "WELCOME"
  | "CHANGE_OF_STOCK"
  | "LOWEST_PRICE"
  | "THRESHOLD_MET";

export type EmailContent = {
  subject: string;
  body: string;
};

export type EmailProductInfo = {
  title: string;
  url: string;
};

utils.ts

import { PriceHistoryItem, Product } from "@/types";

const Notification = {
  WELCOME: 'WELCOME',
  CHANGE_OF_STOCK: 'CHANGE_OF_STOCK',
  LOWEST_PRICE: 'LOWEST_PRICE',
  THRESHOLD_MET: 'THRESHOLD_MET',
}

const THRESHOLD_PERCENTAGE = 40;

// Extracts and returns the price from a list of possible elements.
export function extractPrice(...elements: any) {
  for (const element of elements) {
    const priceText = element.text().trim();

    if(priceText) {
      const cleanPrice = priceText.replace(/[^\d.]/g, '');

      let firstPrice; 

      if (cleanPrice) {
        firstPrice = cleanPrice.match(/\d+\.\d{2}/)?.[0];
      } 

      return firstPrice || cleanPrice;
    }
  }

  return '';
}

// Extracts and returns the currency symbol from an element.
export function extractCurrency(element: any) {
  const currencyText = element.text().trim().slice(0, 1);
  return currencyText ? currencyText : "";
}

// Extracts description from two possible elements from amazon
export function extractDescription($: any) {
  // these are possible elements holding description of the product
  const selectors = [
    ".a-unordered-list .a-list-item",
    ".a-expander-content p",
    // Add more selectors here if needed
  ];

  for (const selector of selectors) {
    const elements = $(selector);
    if (elements.length > 0) {
      const textContent = elements
        .map((_: any, element: any) => $(element).text().trim())
        .get()
        .join("\n");
      return textContent;
    }
  }

  // If no matching elements were found, return an empty string
  return "";
}

export function getHighestPrice(priceList: PriceHistoryItem[]) {
  let highestPrice = priceList[0];

  for (let i = 0; i < priceList.length; i++) {
    if (priceList[i].price > highestPrice.price) {
      highestPrice = priceList[i];
    }
  }

  return highestPrice.price;
}

export function getLowestPrice(priceList: PriceHistoryItem[]) {
  let lowestPrice = priceList[0];

  for (let i = 0; i < priceList.length; i++) {
    if (priceList[i].price < lowestPrice.price) {
      lowestPrice = priceList[i];
    }
  }

  return lowestPrice.price;
}

export function getAveragePrice(priceList: PriceHistoryItem[]) {
  const sumOfPrices = priceList.reduce((acc, curr) => acc + curr.price, 0);
  const averagePrice = sumOfPrices / priceList.length || 0;

  return averagePrice;
}

export const getEmailNotifType = (
  scrapedProduct: Product,
  currentProduct: Product
) => {
  const lowestPrice = getLowestPrice(currentProduct.priceHistory);

  if (scrapedProduct.currentPrice < lowestPrice) {
    return Notification.LOWEST_PRICE as keyof typeof Notification;
  }
  if (!scrapedProduct.isOutOfStock && currentProduct.isOutOfStock) {
    return Notification.CHANGE_OF_STOCK as keyof typeof Notification;
  }
  if (scrapedProduct.discountRate >= THRESHOLD_PERCENTAGE) {
    return Notification.THRESHOLD_MET as keyof typeof Notification;
  }

  return null;
};

export const formatNumber = (num: number = 0) => {
  return num.toLocaleString(undefined, {
    minimumFractionDigits: 0,
    maximumFractionDigits: 0,
  });
};

I am getting error 503 when I try to scrape a product. Anyone else dealing with this?

=> Already connected to MongoDB
 ⨯ lib\actions\index.ts (50:10) @ scrapeAndStoreProduct
 ⨯ Error: Failed to create/update product: Failed to scrape product: Request failed with status code 503
    at scrapeAndStoreProduct (./lib/actions/index.ts:60:15)
  48 |     revalidatePath(`/products/${newProduct._id}`);
  49 |   } catch (error: any) {
> 50 |     throw new Error(`Failed to create/update product: ${error.message}`);
     |          ^
  51 |   }
  52 | }
  53 |

Did you find a solution I am experiencing the same problem right now. It worked the first time, but now I get a 503 error.

I am getting error 503 when I try to scrape a product. Anyone else dealing with this?

=> Already connected to MongoDB
 ⨯ lib\actions\index.ts (50:10) @ scrapeAndStoreProduct
 ⨯ Error: Failed to create/update product: Failed to scrape product: Request failed with status code 503
    at scrapeAndStoreProduct (./lib/actions/index.ts:60:15)
  48 |     revalidatePath(`/products/${newProduct._id}`);
  49 |   } catch (error: any) {
> 50 |     throw new Error(`Failed to create/update product: ${error.message}`);
     |          ^
  51 |   }
  52 | }
  53 |

Did you find a solution I am experiencing the same problem right now. It worked the first time, but now I get a 503 error.

Not yet, I will post one here if I find it, or maybe someone will post one here when they find it.

I am getting error 503 when I try to scrape a product. Anyone else dealing with this?

=> Already connected to MongoDB
 ⨯ lib\actions\index.ts (50:10) @ scrapeAndStoreProduct
 ⨯ Error: Failed to create/update product: Failed to scrape product: Request failed with status code 503
    at scrapeAndStoreProduct (./lib/actions/index.ts:60:15)
  48 |     revalidatePath(`/products/${newProduct._id}`);
  49 |   } catch (error: any) {
> 50 |     throw new Error(`Failed to create/update product: ${error.message}`);
     |          ^
  51 |   }
  52 | }
  53 |

Did you find a solution I am experiencing the same problem right now. It worked the first time, but now I get a 503 error.

Not yet, I will post one here if I find it, or maybe someone will post one here when they find it.

Alright thanks, he mentions in the video that it may not work during development when you are using a localhost, so I am hoping that is what is going wrong and it works in production.

Does anyone know how to fix this error when trying to run the dev?

@rorysteuart i actually faced this issue , went through it . i mentioned same class name 2 times while scrapping , so have a look at your code if that's the case. check that in scraper index.ts. if you don't resolve share that scraper index.ts code here

I think it's because the price appears twice within another span within the span.a-price.a-textprice. Need to find a way to ignore the second span class called aria-hidden.

Just work past it. Is because it using several values to scrape so it ends up scraping the price a few times and returning the values. It should up correctly once you import it to the Product page

the favicon.icon he used in the replacement folder provided in the github gist is missing. It is no longer in the folder. Has anyone else had this problem?

Yes there isnt a favicon in the folder. just make your own

If anyone is having trouble getting the emails to send in production change your sendEmail function to this:
`export const sendEmail = async (emailContent: EmailContent, sentTo: string[]) => {
const mailOptions = {
from: 'trackazon@outlook.com',
to: sentTo,
html: emailContent.body,
subject: emailContent.subject,
};

await transporter.sendMail(mailOptions);

return {};
};`
You need to remove the callback from the nodemailer sendEmail function otherwise it does not return a promise... this cause the script in vercel to be terminated earlier hence not email being sent!

favicon is missing from the G Drive public folder... :-( @adrianhajdin

i got 401 when test cron jobs

t's because the price appears twice within another span within the span.a-price.a-textprice. Need to find a way to ignore the second span class called aria-hidden.

Hey, hey! I had the same issue... It's funny how in the tutorial video this is not happening.

So some Amazon Pages have multiple prices:
Used price, Discounted, and then the replicated hidden prices.

I took me a whole afternoon to figure this out. This part could be more developed in the tutorial. But hey, at least I went on my own to fix it, with the help of bing chat (aka ChatGPT)!

I worked for pages without any discount and pages with discount as well as amazon.de and amazon.com

const currentPrice = extractPrice(
$('span[data-a-color=price] span.a-offscreen').first(),
$('.priceToPay span.a-price-whole').first(),
$('.a.size.base.a-color-price'),
$('.a-button-selected .a-color-base'),
);

    const originalPrice = extractPrice(
        $('span[data-a-strike=true] span.a-offscreen').first()
    );

The ".first()" method helps to remove the same price duplicates or the used price.

Also, if you need to update to Next.js version 14 comment out or remove "serverActions: true", from next.config.js

Does anyone know how to fix this error when trying to run the dev?

I think you are not runing the project from a proper repository folder.

You should be running from your main repository location folder. Did you install .git and nextjs?

the favicon.icon he used in the replacement folder provided in the github gist is missing. It is no longer in the folder. Has anyone else had this problem?

Yes there isnt a favicon in the folder. just make your own

LOL don't make your own go take it from the original repo: https://github.com/adrianhajdin/pricewise/tree/main/app

the favicon.icon he used in the replacement folder provided in the github gist is missing. It is no longer in the folder. Has anyone else had this problem?

take it from the original repo: https://github.com/adrianhajdin/pricewise/tree/main/app

I'm getting started with this project and while creating the Navbar, my styles are not reflecting on website. I did copy the globals.css and tailwind-config-ts from here and I'm attaching my Navbar.tsx code too. I don't know what's wrong but the styles are not reflecting in the website.

import React from 'react'
import Link from 'next/link'
import Image from 'next/image'
const NavIcons=[
    {src:'/assets/icons/search.svg',alt:'search'},
    {src:'/assets/icons/black-heart.svg',alt:'heart'},
    {src:'/assets/icons/user.svg',alt:'user'},
]
const Navbar = () => {
  return (
    <header className='w-full'>
        <nav className="nav">
            <Link href="/" className="flex items-center gap-1">
                <Image 
                src="/assets/icons/logo.svg"
                width={27}
                height={27}
                alt="logo"
                />
                <p className="nav-logo">
                    Price<span className='text-primary'>Wise</span>
                </p>
            </Link>
            <div className='flex items-center gap-5'>
                {NavIcons.map((icon)=>(
                    <Image
                     key={icon.alt}
                     src={icon.src}
                     alt={icon.alt}
                     width={28}
                     height={28}
                     className='object-contain'
                    />
                ))}
            </div>
        </nav>
    </header>
  )
}

export default Navbar```

Also the console of the browser is showing this error
```app-index.js:31 Warning: Prop `className` did not match. Server: "__className_725fdb vsc-initialized" Client: "__className_725fdb"
    at body
    at html
    at RedirectErrorBoundary (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/redirect-boundary.js:72:9)
    at RedirectBoundary (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/redirect-boundary.js:80:11)
    at NotFoundErrorBoundary (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/not-found-boundary.js:54:9)
    at NotFoundBoundary (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/not-found-boundary.js:62:11)
    at DevRootNotFoundBoundary (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/dev-root-not-found-boundary.js:32:11)
    at ReactDevOverlay (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/react-dev-overlay/internal/ReactDevOverlay.js:66:9)
    at HotReload (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/react-dev-overlay/hot-reloader-client.js:294:11)
    at Router (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/app-router.js:157:11)
    at ErrorBoundaryHandler (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/error-boundary.js:82:9)
    at ErrorBoundary (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/error-boundary.js:110:11)
    at AppRouter (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/components/app-router.js:440:13)
    at ServerRoot (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/app-index.js:126:11)
    at RSCComponent
    at Root (webpack-internal:///(app-pages-browser)/./node_modules/next/dist/client/app-index.js:142:11)```

I think your problem lies on

"const NavIcons=["

it should be navIcons and "{navIcons.map((icon) => ("

Also, your spacing is part of the issue It should be "const navIcons = [

You must be precise with the spacing, and you need to fix your indentation.

My << className="object-contain" >> is at line 35 for instance.

MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster. One common reason is that you're trying to access the database from an IP that isn't whitelisted. Make sure your current IP address is on your Atlas cluster's IP whitelist: https://www.mongodb.com/docs/atlas/security-whitelist/
    at _handleConnectionErrors (/Users/spider/Desktop/Scrapping/node_modules/mongoose/lib/connection.js:805:11)
    at NativeConnection.openUri (/Users/spider/Desktop/Scrapping/node_modules/mongoose/lib/connection.js:780:11)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async connectToDB (webpack-internal:///(rsc)/./lib/mongoose.ts:14:9) {
  reason: TopologyDescription {
    type: 'ReplicaSetNoPrimary',
    servers: Map(3) {
      'cluster0-shard-00-01.h2he2.mongodb.net:27017' => [ServerDescription],
      'cluster0-shard-00-02.h2he2.mongodb.net:27017' => [ServerDescription],
      'cluster0-shard-00-00.h2he2.mongodb.net:27017' => [ServerDescription]
    },
    stale: false,
    compatible: true,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    setName: 'atlas-12oka2-shard-0',
    maxElectionId: null,
    maxSetVersion: null,
    commonWireVersion: 0,
    logicalSessionTimeoutMinutes: null
  },
  code: undefined
}

I am getting this error, Anyone please help!
I checked my .env.local variables as well as mongodb configuration still nothing!
ALthough it was working before but now without making any changes it is not working!

@bmartinis12 @DailyDisco Did you guys found anything on the above error?
I am also getting the same one along with the MongooseServerSelectionError

I am getting error 503 when I try to scrape a product. Anyone else dealing with this?

=> Already connected to MongoDB
 ⨯ lib\actions\index.ts (50:10) @ scrapeAndStoreProduct
 ⨯ Error: Failed to create/update product: Failed to scrape product: Request failed with status code 503
    at scrapeAndStoreProduct (./lib/actions/index.ts:60:15)
  48 |     revalidatePath(`/products/${newProduct._id}`);
  49 |   } catch (error: any) {
> 50 |     throw new Error(`Failed to create/update product: ${error.message}`);
     |          ^
  51 |   }
  52 | }
  53 |

Did you find a solution I am experiencing the same problem right now. It worked the first time, but now I get a 503 error.

Not yet, I will post one here if I find it, or maybe someone will post one here when they find it.

Alright thanks, he mentions in the video that it may not work during development when you are using a localhost, so I am hoping that is what is going wrong and it works in production.

i got its solution. it might be due to the imgUrls it was returning.

image: imgUrls[0]||productImg,

changing to this line helped solve the error

For those of you who've mentioned the missing fav icons, the .svg files are all available in the completed project code - pricewise public assets folder. There you'll find two folders that contain all of the svgs you'll need.

I am facing this issue and I am using this in India. Does it create problems due to different country? Please anybody suggest the solution, how you successfully did it?

Help, i can not reach images in assets with extention .svg

the favicon.icon he used in the replacement folder provided in the github gist is missing. It is no longer in the folder. Has anyone else had this problem?

Yes i just made my own

import axios from "axios";
import * as cheerio from "cheerio";
import { extractPrice } from "../utils";

export async function scrapeAmazonProduct(url: string) {
    if(!url) return;

    

    const username = String(process.env.BRIGHT_DATA_USERNAME);
    const password = String(process.env.BRIGHT_DATA_PASSWORD);
    const port = 2225;
    const session_id = (1000000 * Math.random()) | 0;

    const options = {
        auth: {
            username: `${username}-session${session_id}`,
            password,
        },
        host: 'brd.superproxy.io',
        port,
        rejectUnauthorized: false,
    }

    try {
        // Fetch product page
        const response = await axios.get(url, options);
        const $ = cheerio.load(response.data);

        // Get product title
        const title = $('#productTitle').text().trim();
        const currentPrice = extractPrice(
            $('.priceToPay span.a-price-whole'),
            $('a.size.base.a-color-price'),
            $('.a-button-selected .a-color-base'),
        );

        console.log({title, currentPrice});
    } catch (error: any) {
        throw new Error(`Failed to scrape product: ${error.message}`);
    }
}

Can anyone help me figure out why price price is displaying these extra numbers? I cannot figure this out

I've created and hosted my website on vercel but the website does not always work , it works sometimes properly and becomes unresponsive sometimes, It does not show any error in the console . Even the cron job is failing as i've recieved a few mails of cron jobs failure.

import axios from "axios";
import * as cheerio from "cheerio";
import { extractPrice } from "../utils";

export async function scrapeAmazonProduct(url: string) {
    if(!url) return;

    

    const username = String(process.env.BRIGHT_DATA_USERNAME);
    const password = String(process.env.BRIGHT_DATA_PASSWORD);
    const port = 2225;
    const session_id = (1000000 * Math.random()) | 0;

    const options = {
        auth: {
            username: `${username}-session${session_id}`,
            password,
        },
        host: 'brd.superproxy.io',
        port,
        rejectUnauthorized: false,
    }

    try {
        // Fetch product page
        const response = await axios.get(url, options);
        const $ = cheerio.load(response.data);

        // Get product title
        const title = $('#productTitle').text().trim();
        const currentPrice = extractPrice(
            $('.priceToPay span.a-price-whole'),
            $('a.size.base.a-color-price'),
            $('.a-button-selected .a-color-base'),
        );

        console.log({title, currentPrice});
    } catch (error: any) {
        throw new Error(`Failed to scrape product: ${error.message}`);
    }
}

Can anyone help me figure out why price price is displaying these extra numbers? I cannot figure this out

You need to parse it properly. Try the below code
export function extractPrice(...args: any){ for(const element of args){ const price = element.text().trim(); if(price){ return price.replace(/\D/g, ''); } } return ""; }

I am not able to get any mails in my inbox after submitting even after doing everything correctly

"use server";

import { EmailContent, EmailProductInfo, NotificationType } from "@/types";
import nodemailer from "nodemailer";

const Notification = {
WELCOME: "WELCOME",
CHANGE_OF_STOCK: "CHANGE_OF_STOCK",
LOWEST_PRICE: "LOWEST_PRICE",
THRESHOLD_MET: "THRESHOLD_MET",
};

export async function generateEmailBody(
product: EmailProductInfo,
type: NotificationType
) {
const THRESHOLD_PERCENTAGE = 40;
// Shorten the product title
const shortenedTitle =
product.title.length > 20
? ${product.title.substring(0, 20)}...
: product.title;

let subject = "";
let body = "";

switch (type) {
case Notification.WELCOME:
subject = Welcome to Price Tracking for ${shortenedTitle};
body = <div> <h2>Welcome to PriceWise 🚀</h2> <p>You are now tracking ${product.title}.</p> <p>Here's an example of how you'll receive updates:</p> <div style="border: 1px solid #ccc; padding: 10px; background-color: #f8f8f8;"> <h3>${product.title} is back in stock!</h3> <p>We're excited to let you know that ${product.title} is now back in stock.</p> <p>Don't miss out - <a href="${product.url}" target="_blank" rel="noopener noreferrer">buy it now</a>!</p> <img src="https://i.ibb.co/pwFBRMC/Screenshot-2023-09-26-at-1-47-50-AM.png" alt="Product Image" style="max-width: 100%;" /> </div> <p>Stay tuned for more updates on ${product.title} and other products you're tracking.</p> </div>;
break;

case Notification.CHANGE_OF_STOCK:
  subject = `${shortenedTitle} is now back in stock!`;
  body = `
    <div>
      <h4>Hey, ${product.title} is now restocked! Grab yours before they run out again!</h4>
      <p>See the product <a href="${product.url}" target="_blank" rel="noopener noreferrer">here</a>.</p>
    </div>
  `;
  break;

case Notification.LOWEST_PRICE:
  subject = `Lowest Price Alert for ${shortenedTitle}`;
  body = `
    <div>
      <h4>Hey, ${product.title} has reached its lowest price ever!!</h4>
      <p>Grab the product <a href="${product.url}" target="_blank" rel="noopener noreferrer">here</a> now.</p>
    </div>
  `;
  break;

case Notification.THRESHOLD_MET:
  subject = `Discount Alert for ${shortenedTitle}`;
  body = `
    <div>
      <h4>Hey, ${product.title} is now available at a discount more than ${THRESHOLD_PERCENTAGE}%!</h4>
      <p>Grab it right away from <a href="${product.url}" target="_blank" rel="noopener noreferrer">here</a>.</p>
    </div>
  `;
  break;

default:
  throw new Error("Invalid notification type.");

}

return { subject, body };
}

const transporter = nodemailer.createTransport({
pool: true,
service: "hotmail",
port: 2525,
auth: {
user: process.env.EMAIL,
pass: process.env.EMAIL_PASSWORD,
},
maxConnections: 1,
});

export const sendEmail = async (
emailContent: EmailContent,
sendTo: string[]
) => {
const mailOptions = {
from: "harsh.xira@outlook.com",
to: sendTo,
html: emailContent.body,
subject: emailContent.subject,
};

transporter.sendMail(mailOptions, (error: any, info: any) => {
if (error) return console.log(error);

console.log("Email sent: ", info);

});
};

where is a zipped folder

can only receive mails on localhost, but after deploying, it's not working

I am getting error 503 when I try to scrape a product. Anyone else dealing with this?

=> Already connected to MongoDB
 ⨯ lib\actions\index.ts (50:10) @ scrapeAndStoreProduct
 ⨯ Error: Failed to create/update product: Failed to scrape product: Request failed with status code 503
    at scrapeAndStoreProduct (./lib/actions/index.ts:60:15)
  48 |     revalidatePath(`/products/${newProduct._id}`);
  49 |   } catch (error: any) {
> 50 |     throw new Error(`Failed to create/update product: ${error.message}`);
     |          ^
  51 |   }
  52 | }
  53 |

Did you find a solution I am experiencing the same problem right now. It worked the first time, but now I get a 503 error.

Not yet, I will post one here if I find it, or maybe someone will post one here when they find it.

Alright thanks, he mentions in the video that it may not work during development when you are using a localhost, so I am hoping that is what is going wrong and it works in production.

i got its solution. it might be due to the imgUrls it was returning.

image: imgUrls[0]||productImg,

changing to this line helped solve the error

Brother where do you change that line?

After deployment, how can the public open the website? I tried opening the link and it says I am not a member of the team and therefore cant view the page.