How to Scrape Product Pages(Etsy, Amazon, Ebay) in Python Using Scrapy and Request Callbacks

(I'm not condoning anything illegal, this is for educational purposes only)

Introduction

Scrapy is one of the best web scraping frameworks in Python, it's easy to use, fast and packed with features.

But what if you we wanted to scrape multiple pages recursively? Such as product pages.

Well the easiest way is by adding a simple callback to a Request function.

Here’s a code snippet inside a Scrapy project crawling a website with listed products such as Amazon, eBay and Etsy:

def parse(self, response):
    links = response.css('a.s-item__link::attr(href)').getall()

    for link in links:
        yield Request(url=link, callback=self.parse_item)

    next_page = response.css('a.pagination___next.icon-link::attr(href)').get()
    if next_page:
        print('Next page: %s' % next_page)
        yield Request(url=next_page, callback=self.parse)

def parse_item(self, response):
    title = response.xpath('//h1[@class="x-item-title___mainTitle"]/span/text()').get()
    price = response.xpath('//span[@id="prcIsum"]/text()').get()

    yield {'title':title,
           'price':price}

How it works?

First, it grabs the links of each items listed on a products page using this line of code:

links = response.css('a.s-item__link::attr(href)').getall()

It then loops through each one of those links, sends a request to get the page source and does a callback to parse_item:

for link in links:
     yield Request(url=link,callback=self.parse_item)

Inside the parse_item function, it grabs the title and price of the item:

def parse_item(self, response):
      title = response.xpath('//h1[@class="x-item-title__mainTitle"]/span/text()').get()
      price = response.xpath('//span[@id="prcIsum"]/text()').get()

      yield {'title':title,
             'price':price}

Our code then grabs the link to the next page, requests it with a callback to itself (i.e the parse function) and starts all over again:

next_page = response.css('a.pagination__next.icon-link::attr(href)').get()
  if next_page:
        print('Next page:%s' % next_page)
        yield Request(url=next_page,callback=self.parse)

Conclusion

There you go, it's that simple!

Scraping product pages recursively with Scrapy can be implemented as easily as adding a callback to a Request function.

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