Scrapy (Python)
You can use Scrapy alongside our /content API or BrowserQL to scrape data. All you need to do is use the start_requests()
method to make a query to the /content
or BrowserQL API, while keeping your scraping code the same.
Basic Usage
Since Scrapy uses HTTP requests to just download the HTML page and build a DOM-like abstraction to be scrapped, it can only return the initial render of a page without interacting with it. On the other hand, the /content
API asure the HTML content is not just downloaded, but rendered and evaluated inside a browser, while BrowserQL uses advanced stealth techniques to bypass bot detectors before rendering a page.
All you need to do is implement the start_requests()
method to make a query to the /content
API, while keeping your scraping code the same.
import json
import scrapy
class PptrDocsSpider(scrapy.Spider):
name = "pptr-docs"
def start_requests (self):
options = {
"url": "https://puppeteer.github.io/pptr.dev/",
"waitForTimeout": 5000
}
yield scrapy.Request(
url="https://production-sfo.browserless.io/content?token=YOUR_API_TOKEN_HERE",
method='POST',
dont_filter=True,
headers={"Content-Type": "application/json"},
body=json.dumps(options)
)
def parse(self, response):
entries = response.css('sidebar-component a.pptr-sidebar-item')
for entry in entries:
yield{
'title' : entry.css('::text').get(),
'url' : entry.css('::attr(href)').get(),
}
You can use all the options available in the /content
API, use stealth mode, our residential proxies and more! For more reference, please see this blogpost.
Bypass bot-blockers using /unblock
In cases where websites implement aggressive bot-detection mechanisms, you can use the /unblock
API to bypass these. The /unblock
API uses a variety of tools and strategies to override and hide the footprints that headless browsers leave behind, allowing you to access bot-protected websites from a remote interface.
Similar to the /content
API, the /unblock
API renders and evaluates the page in a browser, but with extra stealth features. This makes it ideal for scraping highly protected websites.
You want to make the /unblock
request yeilding the scrapy.Request()
method, and extracting the html content from the JSON in the parse()
method. Here's an example:
import json
import scrapy
class PptrDocsSpider(scrapy.Spider):
name = "pptr-docs"
def start_requests (self):
options = {
"url": "https://puppeteer.github.io/pptr.dev/",
"waitForTimeout": 5000
}
yield scrapy.Request(
url="https://production-sfo.browserless.io/unblock?token=YOUR_API_TOKEN_HERE",
method='POST',
dont_filter=True,
headers={"Content-Type": "application/json"},
body=json.dumps(options)
)
def parse(self, response):
# Extracts the content from the response
html_content = json.loads(response.text)['content']
dom = scrapy.Selector(text=html_content)
# Continue as normal
entries = dom.css('sidebar-component a.pptr-sidebar-item')
for entry in entries:
yield{
'title' : entry.css('::text').get(),
'url' : entry.css('::attr(href)').get(),
}