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extractHotelLinkByCity.ts
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extractHotelLinkByCity.ts
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import { config } from "dotenv";
import fs from "fs";
import {
Browser,
Builder,
By,
until,
WebDriver,
WebElement,
} from "selenium-webdriver";
import { Options } from "selenium-webdriver/chrome";
import { retrieveHotelLinks } from "./src/@booking/common/retrieveLinkHotel";
import category from "./config/propType.json";
import { getMaxProps } from "./src/@booking/common/utils";
import { stringify } from "querystring";
const { createConnection } = require("typeorm");
import path from "path";
import { delay } from "./extractHotelDetail";
config();
const url =
`https://www.booking.com/searchresults.html?aid=304142&label=gen173nr-1FCAIo9AFCAnZuSDNYBGj0AYgBAZgBMbgBF8gBDNgBAegBAfgBAogCAagCA7gCnr6wrAbAAgHSAiQzZWNkNjc2Yi1jMTc1LTRkMGItYTYxZi00YTg1N2ZlNmUyMDfYAgXgAgE&sid=fdf81d1e3bed80d1478b475c52c48ade
&checkin=${process.env.START_DATE}
&checkout=${process.env.END_DATE}
&ss=${process.env.QUERY}`
;
const scrapData = async () => {
const ops = new Options();
ops.windowSize({ width: 1920, height: 1080 });
let driver = await new Builder().forBrowser(Browser.CHROME).build();
const directory = path.join("dist",process.env.QUERY);
if (!fs.existsSync(directory)) {
fs.mkdirSync(directory, { recursive: true });
}
const writeStream = fs.createWriteStream(
path.join(directory, `links.json`),
{ flags: "w" }
);
writeStream.on("ready", () => {
writeStream.write("[");
});
writeStream.addListener("done",()=>{
writeStream.write("]");
})
try {
await driver.get(url);
await driver.sleep(5000);
await disableAd(driver);
const accommodationTypes = await propertyTypeRetrieve(driver);
let isFirstWrite = true;
const tasks = accommodationTypes.map(async (type) => {
const typeName = Object.keys(category).find(k => category[k] === type)
const PAGE_SIZE = 25;
var offset = 0;
const params = {
offset,
nflt: `ht_id%3D${type}`,
};
const maxProps = await getMaxProps(`${url}&${stringify(params)}`);
console.log(`TYPE : ${typeName}, " MAX : ${maxProps}, \n url : ${url}&${stringify(params)} `);
while (offset <= maxProps) {
const links = await retrieveHotelLinks(`${url}&${stringify(params)}`);
await delay(500);
links.forEach((l) => {
if (!isFirstWrite) {
writeStream.write(",");
} else {
isFirstWrite = false;
}
writeStream.write(`${JSON.stringify({
link: l,
typeCode: type,
typeName
})}\n`);
});
console.log(links);
offset += PAGE_SIZE;
}
});
await Promise.all(tasks)
} catch (error) {
console.log(error);
} finally {
writeStream.emit("done");
await driver.quit();
}
};
export const propertyTypeRetrieve = async (driver: WebDriver) => {
const element = await driver.wait(
until.elementLocated(By.xpath(`//*[contains(text(), 'Property Type')]`)),
10000
);
// Find the parent container div of the element
const containerDiv = (await driver.executeScript(
"return arguments[0].parentNode.parentNode;", // Retrieve the parent node
element
)) as WebElement;
const button = await containerDiv.findElement(
By.css(`button.a83ed08757.f88a5204c2.a16392a689.b98133fb50`)
);
// Click the button
await button.click();
const accommodationTypeEles = await containerDiv.findElements(
By.xpath(".//div[@data-filters-item]")
);
const accommodationTypes = (
await Promise.all(
accommodationTypeEles.map(async (e) => {
const typeText = await e
.findElement(By.xpath(".//label/span[3]/div/div/div"))
.getText();
return category[typeText] ? category[typeText] : null;
})
)
).filter((x) => x !== null);
return accommodationTypes;
};
export const disableAd = async (driver: WebDriver) => {
try {
const element = await driver.findElement(By.css(process.env.AD_CSS_SELECT));
element.findElement(By.css("button")).click();
} catch (error) {
}
};
scrapData();