How to Scrape Product Reviews from Any E-Commerce Site

#javascript #ecommerce #webdev #tutorial

Product reviews are gold for market research. Here is how to extract them.

Review Data Structure

Most review systems return:

Rating (1-5 stars)
Review text
Author name
Date posted
Verified purchase flag
Helpful votes

Method 1: JSON-LD (Easiest)

Many e-commerce sites embed reviews as structured data:

const cheerio = require("cheerio");

async function getReviewsFromJsonLD(url) {
  const res = await fetch(url);
  const $ = cheerio.load(await res.text());
  const scripts = $("script[type=application/ld+json]");

  for (const script of scripts) {
    const data = JSON.parse($(script).html());
    if (data.review || data["@type"] === "Product") {
      return {
        name: data.name,
        rating: data.aggregateRating?.ratingValue,
        reviewCount: data.aggregateRating?.reviewCount,
        reviews: (data.review || []).map(r => ({
          rating: r.reviewRating?.ratingValue,
          text: r.reviewBody,
          author: r.author?.name,
          date: r.datePublished
        }))
      };
    }
  }
}

Method 2: API Interception

// Playwright intercepts review API calls
const reviews = [];
page.on("response", async (res) => {
  if (res.url().includes("review") && res.status() === 200) {
    try { reviews.push(await res.json()); } catch(e) {}
  }
});
await page.goto(productUrl);

Platform-Specific Guides

Use Cases

Competitor sentiment analysis
Product improvement insights
Market research
Content generation
Customer pain point discovery

Need product reviews extracted? Amazon, Trustpilot, G2, Capterra — $20. Email: Spinov001@gmail.com | Hire me

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