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scraper1.js
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scraper1.js
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const puppeteer = require('puppeteer');
const _ = require('lodash');
const fs = require('fs');
const Prompt = require('prompt-password');
const Input = require('prompt-input');
// const emailIDPromit = new Input({
// name: 'emailID',
// message: 'email: '
// });
// const passwordPrompt = new Prompt({
// type: 'password',
// message: 'password: ',
// name: 'password'
// });
// const searchQueryPrompt = new Input({
// message: 'search query: ',
// name: 'searchQuery'
// });
// const pages = new Input({
// message: 'page numbers (3 or 3-5 or 3,4,5) : ',
// name: 'pageNum'
// });
// emailIDPromit.run().then(emailID => {
// passwordPrompt.run().then(password => {
// searchQueryPrompt.run().then(searchQuery => {
// pages.run().then(pageNum => {
// console.log(emailID, password, searchQuery, pageNum);
const inputData = {
emailID: '[email protected]',
password: 'password',
searchQuery: 'project manager',
pageNum: 2
}
let pageNum = inputData.pageNum;
if (pageNum.includes("-")) {
let start = Number(pageNum.split('-')[0].trim());
let end = Number(pageNum.split('-')[1].trim());
pageNum = _.range(start, end+1);
// console.log(pageNum);
} else {
pageNum = pageNum.split(",");
}
async function autoScroll(page){
await page.evaluate(async () => {
await new Promise((resolve, reject) => {
var totalHeight = 0;
var distance = 100;
var timer = setInterval(() => {
var scrollHeight = document.body.scrollHeight;
window.scrollBy(0, distance);
totalHeight += distance;
if(totalHeight >= scrollHeight){
clearInterval(timer);
resolve();
}
}, 400);
});
});
}
(async () => {
const browser = await puppeteer.launch({headless: true});
const page = await browser.newPage();
console.log("starting scraper..");
await page.goto('https://www.linkedin.com/');
console.log("visiting linkedin.com");
await page.waitFor('#login-email');
// logging in
console.log("logging In");
await page.waitFor(500)
await page.type('#login-email' , inputData.emailID);
await page.type('#login-password' , inputData.password);
await page.click('#login-submit');
try {
await page.waitFor('.t-16.t-black.t-bold');
} catch(e) {
console.log("wrong password. Please cheack the username and password");
await browser.close();
return;
}
let logenInName = await page.evaluate(() => {
let welcomeMessage = 'welcome';
if (document.querySelector("div > aside.left-rail > div.left-rail-container > div.profile-rail-card > div.profile-rail-card__actor-meta > a.tap-target")) {
welcomeMessage = document.querySelector("div > aside.left-rail > div.left-rail-container > div.profile-rail-card > div.profile-rail-card__actor-meta > a.tap-target").innerText;
}
return welcomeMessage;
})
let finalPageData = [];
console.log("login successfull");
await page.waitFor(500)
console.log(logenInName);
await page.waitFor(500);
console.log(`searching for <${inputData.searchQuery}>`);
for (var j=0; j<pageNum.length; j++) {
await page.goto(`https://www.linkedin.com/search/results/people/?keywords=${inputData.searchQuery}&page=${pageNum[j]}`)
await page.waitFor('.search-results__total');
await page.waitFor(500)
console.log(`scrolling page ${pageNum[j]}..`);
await autoScroll(page);
await page.waitFor(1000);
// get data from page
let pagedata = await page.evaluate(() => {
let peopleLI = document.querySelectorAll("li.search-result");
let pageData = [];
console.log(peopleLI);
for (var i=0; i<peopleLI.length; i++) {
// console.log(peopleLI[i].querySelector("div > div > div > a > figure > div > div > div > img").src);
let tempObj = {};
if (peopleLI[i].querySelector("div > div > div > a > figure > div > div > div > img")) {
tempObj.imgUrl = peopleLI[i].querySelector("div > div > div > a > figure > div > div > div > img").src
}
if (peopleLI[i].querySelector("div > div").children[1].querySelector("a > h3 > span > span > span")) {
tempObj.name = peopleLI[i].querySelector("div > div").children[1].querySelector("a > h3 > span > span > span").innerText
} else {
tempObj.name = "No name available"
}
if (peopleLI[i].querySelector("div > div").children[1].querySelector("p > span")) {
tempObj.title = peopleLI[i].querySelector("div > div").children[1].querySelector("p > span").innerText
} else {
tempObj.title = "no title available"
}
if (peopleLI[i].querySelector("div > div").children[1].querySelectorAll("p")[2]) {
tempObj.summery = peopleLI[i].querySelector("div > div").children[1].querySelectorAll("p")[2].innerText
} else {
tempObj.summery = "no summery available"
}
pageData.push(tempObj);
}
return pageData;
})
finalPageData.push(...pagedata);
}
// console.log("finalPageData ->");
// console.log(finalPageData);
let finalData = {
searchQuery: inputData.searchQuery,
emailID: inputData.emailID,
pages: inputData.pageNum,
data: finalPageData
}
try {
fs.mkdirSync('./scraper1-data');
} catch(e) {
console.log("folder already exist.")
}
fs.writeFileSync(`scraper1-data/${Date.now()}.json`, JSON.stringify(finalData));
console.log("Scrapped successfully");
await page.waitFor(2000)
await browser.close();
})();
// })
// })
// })
// })