Đã Đóng

Build a website scraper to my specification

I need someone to use javascript to scrape websites for me

I will give you a list of websites to scrape for me

You will need to follow the function signatures I provide and also their return types


You are tasked to scrape product results from an ecommerce store

The first task is to create a function to get a list of the items. If the results are paginated you must also get the results from the subsequent pages

This function will be called getListings. It will return data in the following format



name: 'Item name',

url: itemUrl,

price: itemPrice


...other items


The next task will be to create a function for scraping the individual pages themselves. This function will be called on each item returned from getListings.

This function will be called scrapePage. It will receive the following object as an argument


url: itemUrl,

$: cheerioObject,

existingData: dataScrapedFromGetListingFunction


And it will return data in the following format



description: itemDescription,


scrapePage will merge the existing data with its own data and return the result.

The final result should pass the isValidItem check (see declarations below)

Example declarations

interface ScrapedItem {

[key:string]: string | number | undefined,

url?: string,

name?: string,

price?: number,

description?: string,


interface FinalItem extends ScrapedItem {

url: string


interface Address {

county: String,

formatted: String


interface CheerioObject {} // see [login to view URL]

function getListings(

address: Address,

searchTerm: String

): [FinalItem] | null {

return [{

url: 'url'



function scrapePage({




}: {

url: String,

$: CheerioObject,

existingData: FinalItem,

}): FinalItem {

return {


description: 'description',




function isNumber(_): _ is number { return typeof _ === 'number' }

function getMissingKeys(item: ScrapedItem) : Array<string> {

return ['url', 'description', 'name', 'price'].map((key: string) => {

if (!item[key]) {

return key;


return null;

}).filter((key: string | null):key is string => {

return !!key;



function isValidItem(item: ScrapedItem) {

const keys = getMissingKeys(item);

if ([login to view URL]) {

[login to view URL]('Item has missing keys: ', [login to view URL]());

return false;


return true;


In summary

I will give you a website to scrape.

You will create the getListings and scrapePage functions as defined above.

scrapePage will be used to iterate over the results from getListings but you do not need to provide the function that handles this iteration.

the final result from scrapePage must pass the isValidItem check that I will provide

This must be done using NodeJS 10 without typescript or any build process

You can use puppeteer on harder to scrape websites but it must also run in headless mode

The price will be for one website but we will need 50+ websites done

Kĩ năng: HTML, Javascript, Web Scraping, node.js, CSS

Xem nhiều hơn: need build website weight loss planner, help build website, build website css div, build website construction business, build website mp3 player musicians, build website look professional, best website scraper, build website chat cam using php, build website astrology, build website applications, software poker build website, build website 2008 software download, build website poker affiliation, can build website, build website scraper java, build a website which earn 50 usd-100 usd per day, build a website which earn 50 usd100 usd per day

Về Bên Thuê:
( 0 nhận xét ) Skerries, Ireland

ID dự án: #22269092

9 freelancer đang chào giá trung bình €34 cho công việc này


Hi there, I am scraping expert. I have did more than 350+ scraping projects. Can we discuss more details about your project? then i can do example data or script for you, we can continue after you checked example dat Thêm

€34 EUR trong 1 ngày
(356 Nhận xét)

Hello Sir, I am expert who understands the value of time. I pride myself in my attention to detail. I am very hard working and aim to deliver in less time than quoted. I want to make you, my employer happy without cha Thêm

€90 EUR trong 2 ngày
(43 Nhận xét)

Greetings, my name is Ahmad. I am Head of Client Relations and a web-developer myself. I would love to have an opportunity to discuss your project with you. With over 5 years of experience in mobile/web design and de Thêm

€19 EUR trong 7 ngày
(6 Nhận xét)

Hello, How are you? My pleasure to bid your project. I've read carefully your project description. I have more than five years experience in development related with your project. Your satisfaction with the project is Thêm

€19 EUR trong 7 ngày
(16 Nhận xét)

Greetings! The website you’re looking for is totally do-able!. I can design/develop your preconceived website consisting of your intended pages and features as you want. I have more than 6-years of extensive experie Thêm

€30 EUR trong 3 ngày
(18 Nhận xét)

Hi There, I have 5+ years experience in HTML5, CSS3, BOOTSTRAP, JAVASCRIPT, JQUERY.I really desire to get this project. I am seeking better opportunities in long term job because I want to build a long term good relati Thêm

€25 EUR trong 2 ngày
(13 Nhận xét)

******** Greetings! I have gone through project and I know what you are looking for. I have done similar work in the past, so it won't take much of your time. Do not pay me until you get full satisfaction. I am lookin Thêm

€50 EUR trong 7 ngày
(4 Nhận xét)

We have read your description and understood the job. we are interested and we can develop website for you. we have an experienced full stack developers with over 4 years of [login to view URL] have master command in WordP Thêm

€19 EUR trong 7 ngày
(1 Nhận xét)

Hi there! This is Saad from Ossols Ltd here. My bid is not to win this project but it's also to maintain a long-term relationship in the bright of this project. I have a cream of Software Engineers with Marketing Speci Thêm

€19 EUR trong 7 ngày
(0 Nhận xét)