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Patang
Easy plug-in module for extracting product details for e-commerce websites like Flipkart and Amazon in an easy-to-read JSON format. It extends two implementations - with Puppeteer and DOM String.
Who Should Use This?
This module would come in handy if one is building for some kind of a scraping operation and needs to evaluate product details. It takes care of the logic for extracting product details.
Supported Platforms
Setup
Install the package in your Node.js application
npm i --save patang
You can go ahead and require it wherever you need to use it.
// sample file: ./index.js
const patang = require('patang');
Usages - Examples
There are two ways to utilize the library
With DOM String
The evaluateProductDetails function of the pageEvaluator module expects the HTML DOM string and one of the supported platform name as parameter.
const axios = require('axios');
const { domEvaluator } = require('patang');
// Flipkart
let exampleFlpktUrl = 'https://www.flipkart.com/boat-stone-grenade-5-w-portable-bluetooth-speaker/p/itm0f38c2f530da5?pid=ACCFDBFR9ZCZTDGJ&lid=LSTACCFDBFR9ZCZTDGJUKDA7E&marketplace=FLIPKART&srno=b_1_1&otracker=hp_omu_Top%2BOffers_5_3.dealCard.OMU_MG06BUMHI8DW_3&otracker1=hp_omu_PINNED_neo%2Fmerchandising_Top%2BOffers_NA_dealCard_cc_5_NA_view-all_3&fm=neo%2Fmerchandising&iid=78c6c4aa-ba59-437b-b973-e57a583ee1c7.ACCFDBFR9ZCZTDGJ.SEARCH&ppt=browse&ppn=browse&ssid=ca4ygt9n0g0000001608474631861';
axios.get(exampleFlpktUrl)
.then((res) => {
console.log('Flipkart Product Details')
// printing the extracted details as an example
// use the return value as you see apt for your use-case
console.log(domEvaluator.evaluateProductDetails(res.data, 'flipkart'));
});
With Puppeteer
The evaluateProductDetails function of the domEvaluator module expects the platform name and the puppeteer page object to be made available.
const puppeteer = require('puppeteer');
const { pageEvaluator } = require('patang');
let exampleFlpktUrl = 'https://www.flipkart.com/boat-stone-grenade-5-w-portable-bluetooth-speaker/p/itm0f38c2f530da5?pid=ACCFDBFR9ZCZTDGJ&lid=LSTACCFDBFR9ZCZTDGJUKDA7E&marketplace=FLIPKART&srno=b_1_1&otracker=hp_omu_Top%2BOffers_5_3.dealCard.OMU_MG06BUMHI8DW_3&otracker1=hp_omu_PINNED_neo%2Fmerchandising_Top%2BOffers_NA_dealCard_cc_5_NA_view-all_3&fm=neo%2Fmerchandising&iid=78c6c4aa-ba59-437b-b973-e57a583ee1c7.ACCFDBFR9ZCZTDGJ.SEARCH&ppt=browse&ppn=browse&ssid=ca4ygt9n0g0000001608474631861';
let exampleAmznUrl = 'https://www.amazon.in/Honor-HONOR-Band-5/dp/B07Z26SS9G/?_encoding=UTF8&pd_rd_w=E2RZU&pf_rd_p=e60c70f0-0541-4ba5-b6fc-ada95198a5fe&pf_rd_r=FVVSZP80NMR76D87FG70&pd_rd_r=c469c8b3-2ea8-4cb2-b9e3-8ca2cd005fe4&pd_rd_wg=Xwn0L&ref_=pd_gw_crs_zg_bs_1984443031';
async function extractDetailsFromPage() {
const browser = await puppeteer.launch({
headless: true, defaultViewport: null, args: [
'--no-sandbox',
'--disable-setuid-sandbox',
'--no-zygote',
'--no-default-browser-check',
'--bwsi',
'--disable-dev-shm-usage',
'--disable-infobars',
'--hide-scrollbars',
],
});
const page = await browser.newPage();
await page.goto(exampleFlpktUrl, { waitUntil: 'networkidle0' });
console.log('Flipkart Product Details');
console.log(await pageEvaluator.evaluateProductDetails(page, 'flipkart'));
await page.goto(exampleAmznUrl, { waitUntil: 'networkidle0' });
console.log('Amazon Product Details');
console.log(await pageEvaluator.evaluateProductDetails(page, 'amazon'));
await page.close();
await browser.close();
return 'Completed!';
}
// invoking the function
extractDetailsFromPage()
.then(res => console.log(res));
API
domEvaluator: Function
evaluateProductDetails(dom: string, platform: string): Function
platform: Values:'flipkart' | 'amazon'dom: Values:'<html>....</html>'- Return Value:
Product Details Objecte.g:
{
title: 'boAt Stone Grenade 5 W Portable Bluetooth Speaker<!-- --> (Charcoal Black, Mono Channel)',
description: '<p>Listen to music in stellar quality with this boAt speaker. With a multitude of features, such as 7-hours of playback time, water-resistant, and easy access control, this speaker ensures a fulfilling aural experience.<br></p>',
price: '₹1,499',
productImage: 'http://rukmini1.flixcart.com/image/128/128/k0vbgy80pkrrdj/speaker/mobile-tablet-speaker/4/n/n/boat-stone-grenade-original-imafg96ffpnpgdv4.jpeg?q=70'
}
pageEvaluator: Function
evaluateProductDetails(page: object, platform: string): Function
platform: Values:'flipkart' | 'amazon'page: Values:[Puppeteer Page Object](https://pptr.dev/#?product=Puppeteer&version=v5.4.1&show=api-class-page)- Return Value:
Product Details Objecte.g:
{
title: 'boAt Stone Grenade 5 W Portable Bluetooth Speaker<!-- --> (Charcoal Black, Mono Channel)',
description: '<p>Listen to music in stellar quality with this boAt speaker. With a multitude of features, such as 7-hours of playback time, water-resistant, and easy access control, this speaker ensures a fulfilling aural experience.<br></p>',
price: '₹1,499',
productImage: 'http://rukmini1.flixcart.com/image/128/128/k0vbgy80pkrrdj/speaker/mobile-tablet-speaker/4/n/n/boat-stone-grenade-original-imafg96ffpnpgdv4.jpeg?q=70'
}
platformIdentifiers: Object
- Returns the attributes object for a particular platform
- Example:
const { platformIdentifiers } = require('patang');
console.log(platformIdentifiers.Flipkart);
// Output
// {
// title: ['.B_NuCI'],
// description: ['div._1mXcCf'],
// price: ['._30jeq3._16Jk6d'],
// productImage: ['._396cs4._2amPTt._3qGmMb._3exPp9'],
// }
License
Contributions - Guidelines
The project is open to one and all for contributions. Simply fork the project, make your changes and raise a PR.
FAQs
Extract product details based on e-commerce platform
We found that patang demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Package last updated on 27 Dec 2020
Did you know?
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