scrapingbee node
v1.7.5
ScrapingBee adalah API pengikisan web yang menangani browser tanpa kepala dan merotasi proxy untuk Anda. Node SDK mempermudah interaksi dengan API ScrapingBee.
Anda dapat menginstal ScrapingBee Node SDK dengan npm.
npm install scrapingbeeScrapingBee Node SDK adalah pembungkus perpustakaan axios. ScrapingBee mendukung permintaan GET dan POST.
Daftar ke ScrapingBee untuk mendapatkan kunci API dan beberapa kredit gratis untuk memulai.
const scrapingbee = require ( 'scrapingbee' ) ;
async function get ( url ) {
var client = new scrapingbee . ScrapingBeeClient ( 'REPLACE-WITH-YOUR-API-KEY' ) ;
var response = await client . get ( {
// The URL you want to scrape
url : url ,
params : {
// Block ads on the page you want to scrape
block_ads : false ,
// Block images and CSS on the page you want to scrape
block_resources : true ,
// Premium proxy geolocation
country_code : '' ,
// Control the device the request will be sent from
device : 'desktop' ,
// Use some data extraction rules
extract_rules : { title : 'h1' } ,
// Wrap response in JSON
json_response : false ,
// JavaScript scenario to execute (clicking on button, scrolling ...)
js_scenario : {
instructions : [
{ wait_for : '#slow_button' } ,
{ click : '#slow_button' } ,
{ scroll_x : 1000 } ,
{ wait : 1000 } ,
{ scroll_x : 1000 } ,
{ wait : 1000 } ,
] ,
} ,
// Use premium proxies to bypass difficult to scrape websites (10-25 credits/request)
premium_proxy : false ,
// Execute JavaScript code with a Headless Browser (5 credits/request)
render_js : true ,
// Return the original HTML before the JavaScript rendering
return_page_source : false ,
// Return page screenshot as a png image
screenshot : false ,
// Take a full page screenshot without the window limitation
screenshot_full_page : false ,
// Transparently return the same HTTP code of the page requested.
transparent_status_code : false ,
// Wait, in miliseconds, before returning the response
wait : 0 ,
// Wait for CSS selector before returning the response, ex ".title"
wait_for : '' ,
// Set the browser window width in pixel
window_width : 1920 ,
// Set the browser window height in pixel
window_height : 1080 ,
} ,
headers : {
// Forward custom headers to the target website
key : 'value' ,
} ,
cookies : {
// Forward custom cookies to the target website
name : 'value' ,
} ,
// `timeout` specifies the number of milliseconds before the request times out.
// If the request takes longer than `timeout`, the request will be aborted.
timeout : 10000 , // here 10sec, default is `0` (no timeout)
} ) ;
var decoder = new TextDecoder ( ) ;
var text = decoder . decode ( response . data ) ;
console . log ( text ) ;
}
get ( 'https://httpbin-scrapingbee.cleverapps.io/html' ) . catch ( ( e ) => console . log ( 'A problem occurs : ' + e . message ) ) ;
/* -- output
<!DOCTYPE html><html lang="en"><head>...
*/ScrapingBee mengambil berbagai parameter untuk merender JavaScript, menjalankan skrip JavaScript khusus, menggunakan proxy premium dari geolokasi tertentu, dan banyak lagi.
Anda dapat menemukan semua parameter yang didukung pada dokumentasi ScrapingBee.
Anda dapat mengirim cookie dan header khusus seperti yang biasa Anda lakukan dengan perpustakaan permintaan.
Berikut sedikit contoh cara mengambil dan menyimpan screenshot dari blog ScrapingBee dalam resolusi selulernya.
const fs = require ( 'fs' ) ;
const scrapingbee = require ( 'scrapingbee' ) ;
async function screenshot ( url , path ) {
var client = new scrapingbee . ScrapingBeeClient ( 'REPLACE-WITH-YOUR-API-KEY' ) ;
var response = await client . get ( {
url : url ,
params : {
screenshot : true , // Take a screenshot
screenshot_full_page : true , // Specify that we need the full height
window_width : 375 , // Specify a mobile width in pixel
} ,
} ) ;
fs . writeFileSync ( path , response . data ) ;
}
screenshot ( 'https://httpbin-scrapingbee.cleverapps.io/html' , './httpbin.png' ) . catch ( ( e ) =>
console . log ( 'A problem occurs : ' + e . message )
) ; Klien menyertakan mekanisme percobaan ulang untuk respons 5XX.
const spb = require ( 'scrapingbee' ) ;
async function get ( url ) {
let client = new spb . ScrapingBeeClient ( 'REPLACE-WITH-YOUR-API-KEY' ) ;
let resp = await client . get ( { url : url , params : { render_js : false } , retries : 5 } ) ;
let decoder = new TextDecoder ( ) ;
let text = decoder . decode ( resp . data ) ;
console . log ( text ) ;
}
get ( 'https://httpbin-scrapingbee.cleverapps.io/html' ) . catch ( ( e ) => console . log ( 'A problem occured: ' + e . message ) ) ;
