Mixing
Scrapy following links, extracting new ones and following them
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I'm trying to create a scraper that scrapes a website for its products. I decided to extract all the categories links from the navigation menu, then follow them and extract all the products links, which I later parse in the parse_product function. But I don't actually what's the best way to do that. I'm struggling with following parse_menu links and futher extractiong product links. Criticize my code pls.
class DiorSpider(CrawlSpider):
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
rules = (
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us',
)), callback='parse_menu'),
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us/products/.*',
)), callback='parse_product'),
)
def parse_menu(self, response):
menu = response.xpath('//a[@class="navigation-item-link"]').extract()
for item in menu:
link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
if link:
absolute_url = response.urljoin(link[0])
yield absolute_url
def parse_product(self, response):
scrapy
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
add a comment |
0
I'm trying to create a scraper that scrapes a website for its products. I decided to extract all the categories links from the navigation menu, then follow them and extract all the products links, which I later parse in the parse_product function. But I don't actually what's the best way to do that. I'm struggling with following parse_menu links and futher extractiong product links. Criticize my code pls.
class DiorSpider(CrawlSpider):
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
rules = (
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us',
)), callback='parse_menu'),
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us/products/.*',
)), callback='parse_product'),
)
def parse_menu(self, response):
menu = response.xpath('//a[@class="navigation-item-link"]').extract()
for item in menu:
link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
if link:
absolute_url = response.urljoin(link[0])
yield absolute_url
def parse_product(self, response):
scrapy
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
add a comment |
0
0
0
I'm trying to create a scraper that scrapes a website for its products. I decided to extract all the categories links from the navigation menu, then follow them and extract all the products links, which I later parse in the parse_product function. But I don't actually what's the best way to do that. I'm struggling with following parse_menu links and futher extractiong product links. Criticize my code pls.
class DiorSpider(CrawlSpider):
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
rules = (
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us',
)), callback='parse_menu'),
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us/products/.*',
)), callback='parse_product'),
)
def parse_menu(self, response):
menu = response.xpath('//a[@class="navigation-item-link"]').extract()
for item in menu:
link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
if link:
absolute_url = response.urljoin(link[0])
yield absolute_url
def parse_product(self, response):
scrapy
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
I'm trying to create a scraper that scrapes a website for its products. I decided to extract all the categories links from the navigation menu, then follow them and extract all the products links, which I later parse in the parse_product function. But I don't actually what's the best way to do that. I'm struggling with following parse_menu links and futher extractiong product links. Criticize my code pls.
class DiorSpider(CrawlSpider):
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
rules = (
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us',
)), callback='parse_menu'),
Rule(LinkExtractor(allow=(r'^https?://www.dior.com/en_us/products/.*',
)), callback='parse_product'),
)
def parse_menu(self, response):
menu = response.xpath('//a[@class="navigation-item-link"]').extract()
for item in menu:
link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
if link:
absolute_url = response.urljoin(link[0])
yield absolute_url
def parse_product(self, response):
scrapy
scrapy
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
asked Jan 3 at 16:10
Snail_nnaailSnail_nnaail
103
103
add a comment |
add a comment |
1 Answer
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class DiorSpider(Spider): #crawlspider is used mostly when you use Linkextractors.
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
#if you're going through nevigation bar, no need to add Rules.
def parse(self, response):
links = response.xpath('//a[@class="navigation-item-link"]/@href').extract() #here you can easily extract links
for link in links:
#link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
#links are extracted in xpath above.
absolute_url = response.urljoin(link)
yield Request(absolute_url, self.parse_product)
def parse_product(self, response):
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
add a comment |
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1 Answer
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active
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votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
class DiorSpider(Spider): #crawlspider is used mostly when you use Linkextractors.
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
#if you're going through nevigation bar, no need to add Rules.
def parse(self, response):
links = response.xpath('//a[@class="navigation-item-link"]/@href').extract() #here you can easily extract links
for link in links:
#link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
#links are extracted in xpath above.
absolute_url = response.urljoin(link)
yield Request(absolute_url, self.parse_product)
def parse_product(self, response):
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
add a comment |
0
class DiorSpider(Spider): #crawlspider is used mostly when you use Linkextractors.
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
#if you're going through nevigation bar, no need to add Rules.
def parse(self, response):
links = response.xpath('//a[@class="navigation-item-link"]/@href').extract() #here you can easily extract links
for link in links:
#link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
#links are extracted in xpath above.
absolute_url = response.urljoin(link)
yield Request(absolute_url, self.parse_product)
def parse_product(self, response):
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
add a comment |
0
0
0
class DiorSpider(Spider): #crawlspider is used mostly when you use Linkextractors.
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
#if you're going through nevigation bar, no need to add Rules.
def parse(self, response):
links = response.xpath('//a[@class="navigation-item-link"]/@href').extract() #here you can easily extract links
for link in links:
#link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
#links are extracted in xpath above.
absolute_url = response.urljoin(link)
yield Request(absolute_url, self.parse_product)
def parse_product(self, response):
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
class DiorSpider(Spider): #crawlspider is used mostly when you use Linkextractors.
name = 'newdior'
allowed_domains = ['www.dior.com']
start_urls = ['https://www.dior.com/en_us/']
#if you're going through nevigation bar, no need to add Rules.
def parse(self, response):
links = response.xpath('//a[@class="navigation-item-link"]/@href').extract() #here you can easily extract links
for link in links:
#link = re.compile(r'a class="navigation-item-link" href="([a-zA-Z0-9_/-]*)"').findall(item)
#links are extracted in xpath above.
absolute_url = response.urljoin(link)
yield Request(absolute_url, self.parse_product)
def parse_product(self, response):
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
answered Jan 3 at 16:25
ThunderMindThunderMind
639214
639214
add a comment |
add a comment |
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