Merge pull request #291 from Ninjavin/amazon-scrape-nodejs

Amazon Scraping Using Nodejs Added

Author: SANKET7738

JavaScript/Amazon-Scrape/.gitignore

@@ -0,0 +1 @@
+/node_modules

JavaScript/Amazon-Scrape/README.md

@@ -0,0 +1,11 @@
+# Scrape Amazon Using NodeJS
+
+This script scrapes Amazon for the product you searched and returns the top 5 results with their price and ratings
+
+## How to Run?
++ Run `npm i` to install the dependencies.
++ Run `node index.js "<product-name>"` to search for a particular product.
+
+## Example
+
+![image](images/Amazon-Scrape.png)

JavaScript/Amazon-Scrape/images/Amazon-Scrape.png

@@ -0,0 +1,51 @@
+// To Scrape the Amazon Website
+const puppeteer = require('puppeteer');
+// To print table in the output
+const Table = require('cli-table');
+const table = new Table({
+	head: ['Product Name', 'Price', 'Ratings'],
+	colWidths: [140, 10, 10]
+})
+// To get user arguments
+const args = process.argv;
+const amazon = (async () => {
+	// Launching the browser
+	const browser = await puppeteer.launch({ timeout: 0 })
+	const page = await browser.newPage()
+	await page.goto("https://www.amazon.com/", { timeout: 0, waitUntil: 'domcontentloaded' })
+	// Getting the User Input
+	const name = args[2]
+	// Selecting the Search Box
+	const elementHandle = await page.$('input#twotabsearchtextbox.nav-input')
+	// Typing in the user argument in the search box
+	await elementHandle.type(name)
+	// Pressing Enter
+	await elementHandle.press('Enter')
+	await page.waitForNavigation({waitUntil: "domcontentloaded"})
+	const results = await page.evaluate(() => {
+		const searchresult = Array.from(document.querySelectorAll('.s-result-item.s-asin'))
+		return searchresult.map(r => {
+			if (r.querySelector(".a-price")) {
+				return {
+					product: r.querySelector(".a-color-base.a-text-normal").textContent,
+					price: (r.querySelector(".a-price").textContent),
+					ratings: r.querySelector(".a-icon-alt") ?  r.querySelector(".a-icon-alt").textContent : "NA"
+				};
+			}
+		}).slice(0,5)
+	})
+	// Printing the results
+	console.log("\nHere are the top 5 products based on your search: \n")
+	for(let i=0 ; i<5 ; i++){
+		table.push(
+			[`${results[i].product}`, `${results[i].price}`, `${results[i].ratings.slice(0, 3)}`]
+		)
+	}
+	console.log(table.toString())
+	await browser.close()
+})
+// Calling the function
+if(args.length === 2)
+	console.log('Correct Command Usage: `node index.js "product-name"`')
+else
+	amazon()