Can't get min_position in twitter scraping correctly











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I am trying to scrape twitter.
please enter search.twitter.com and put Comorbidity in search form.
I can get first page correctly, I can see when scrolling down for more tweets, the next page can be gotten from min_position param.
But when send request with next page, I can't get correct content.



Here is my some code.



headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36'}

def start_requests(self):
yield Request(url=self.start_urls[0], callback=self.parse_search_page)

def parse_search_page(self, response):
keyword = 'Comorbidity'
search_url = self.search_url.format(keyword=keyword)
yield Request(url=search_url, callback=self.parse_twitter_page, headers=self.headers)

def parse_twitter_page(self, response):
next_page = None
if self.current_page == 0:
posts = response.xpath('//li[@data-item-type="tweet"]').extract()
min_position = re.search('data-min-position="(.*?)"', response.body)
if min_position:
min_position = min_position.group(1)
next_page = self.next_page_url.format(position=min_position.replace('cm+', 'cm%2B').replace('==', '%3D%3D'))
self.current_page = 1
else:
json_data = json.loads(response.body)
min_position = json_data.get('min_position')

if next_page:
yield scrapy.http.Request(
url=self.next_page_url,
callback=self.parse_twitter_page,
headers=self.headers,
)


How can I get correct min_position?










share|improve this question




























    up vote
    1
    down vote

    favorite












    I am trying to scrape twitter.
    please enter search.twitter.com and put Comorbidity in search form.
    I can get first page correctly, I can see when scrolling down for more tweets, the next page can be gotten from min_position param.
    But when send request with next page, I can't get correct content.



    Here is my some code.



    headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36'}

    def start_requests(self):
    yield Request(url=self.start_urls[0], callback=self.parse_search_page)

    def parse_search_page(self, response):
    keyword = 'Comorbidity'
    search_url = self.search_url.format(keyword=keyword)
    yield Request(url=search_url, callback=self.parse_twitter_page, headers=self.headers)

    def parse_twitter_page(self, response):
    next_page = None
    if self.current_page == 0:
    posts = response.xpath('//li[@data-item-type="tweet"]').extract()
    min_position = re.search('data-min-position="(.*?)"', response.body)
    if min_position:
    min_position = min_position.group(1)
    next_page = self.next_page_url.format(position=min_position.replace('cm+', 'cm%2B').replace('==', '%3D%3D'))
    self.current_page = 1
    else:
    json_data = json.loads(response.body)
    min_position = json_data.get('min_position')

    if next_page:
    yield scrapy.http.Request(
    url=self.next_page_url,
    callback=self.parse_twitter_page,
    headers=self.headers,
    )


    How can I get correct min_position?










    share|improve this question


























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I am trying to scrape twitter.
      please enter search.twitter.com and put Comorbidity in search form.
      I can get first page correctly, I can see when scrolling down for more tweets, the next page can be gotten from min_position param.
      But when send request with next page, I can't get correct content.



      Here is my some code.



      headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36'}

      def start_requests(self):
      yield Request(url=self.start_urls[0], callback=self.parse_search_page)

      def parse_search_page(self, response):
      keyword = 'Comorbidity'
      search_url = self.search_url.format(keyword=keyword)
      yield Request(url=search_url, callback=self.parse_twitter_page, headers=self.headers)

      def parse_twitter_page(self, response):
      next_page = None
      if self.current_page == 0:
      posts = response.xpath('//li[@data-item-type="tweet"]').extract()
      min_position = re.search('data-min-position="(.*?)"', response.body)
      if min_position:
      min_position = min_position.group(1)
      next_page = self.next_page_url.format(position=min_position.replace('cm+', 'cm%2B').replace('==', '%3D%3D'))
      self.current_page = 1
      else:
      json_data = json.loads(response.body)
      min_position = json_data.get('min_position')

      if next_page:
      yield scrapy.http.Request(
      url=self.next_page_url,
      callback=self.parse_twitter_page,
      headers=self.headers,
      )


      How can I get correct min_position?










      share|improve this question















      I am trying to scrape twitter.
      please enter search.twitter.com and put Comorbidity in search form.
      I can get first page correctly, I can see when scrolling down for more tweets, the next page can be gotten from min_position param.
      But when send request with next page, I can't get correct content.



      Here is my some code.



      headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36'}

      def start_requests(self):
      yield Request(url=self.start_urls[0], callback=self.parse_search_page)

      def parse_search_page(self, response):
      keyword = 'Comorbidity'
      search_url = self.search_url.format(keyword=keyword)
      yield Request(url=search_url, callback=self.parse_twitter_page, headers=self.headers)

      def parse_twitter_page(self, response):
      next_page = None
      if self.current_page == 0:
      posts = response.xpath('//li[@data-item-type="tweet"]').extract()
      min_position = re.search('data-min-position="(.*?)"', response.body)
      if min_position:
      min_position = min_position.group(1)
      next_page = self.next_page_url.format(position=min_position.replace('cm+', 'cm%2B').replace('==', '%3D%3D'))
      self.current_page = 1
      else:
      json_data = json.loads(response.body)
      min_position = json_data.get('min_position')

      if next_page:
      yield scrapy.http.Request(
      url=self.next_page_url,
      callback=self.parse_twitter_page,
      headers=self.headers,
      )


      How can I get correct min_position?







      python scrapy






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 11 at 19:25

























      asked Nov 11 at 19:03









      Softdev

      126




      126
























          1 Answer
          1






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          oldest

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          up vote
          0
          down vote



          accepted










          I think you had a wrong in parse_twitter_page method.



          if next_page:
          yield scrapy.http.Request(
          url=next_page,
          callback=self.parse_twitter_page,
          headers=self.headers,
          )


          It should not be self.next_page_url.
          I changed from self.next_page_url to next_page
          I hope this will works.






          share|improve this answer





















          • This worked for me. Thanks
            – Softdev
            Nov 12 at 12:11











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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote



          accepted










          I think you had a wrong in parse_twitter_page method.



          if next_page:
          yield scrapy.http.Request(
          url=next_page,
          callback=self.parse_twitter_page,
          headers=self.headers,
          )


          It should not be self.next_page_url.
          I changed from self.next_page_url to next_page
          I hope this will works.






          share|improve this answer





















          • This worked for me. Thanks
            – Softdev
            Nov 12 at 12:11















          up vote
          0
          down vote



          accepted










          I think you had a wrong in parse_twitter_page method.



          if next_page:
          yield scrapy.http.Request(
          url=next_page,
          callback=self.parse_twitter_page,
          headers=self.headers,
          )


          It should not be self.next_page_url.
          I changed from self.next_page_url to next_page
          I hope this will works.






          share|improve this answer





















          • This worked for me. Thanks
            – Softdev
            Nov 12 at 12:11













          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          I think you had a wrong in parse_twitter_page method.



          if next_page:
          yield scrapy.http.Request(
          url=next_page,
          callback=self.parse_twitter_page,
          headers=self.headers,
          )


          It should not be self.next_page_url.
          I changed from self.next_page_url to next_page
          I hope this will works.






          share|improve this answer












          I think you had a wrong in parse_twitter_page method.



          if next_page:
          yield scrapy.http.Request(
          url=next_page,
          callback=self.parse_twitter_page,
          headers=self.headers,
          )


          It should not be self.next_page_url.
          I changed from self.next_page_url to next_page
          I hope this will works.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 12 at 12:08









          Dmytro L

          16




          16












          • This worked for me. Thanks
            – Softdev
            Nov 12 at 12:11


















          • This worked for me. Thanks
            – Softdev
            Nov 12 at 12:11
















          This worked for me. Thanks
          – Softdev
          Nov 12 at 12:11




          This worked for me. Thanks
          – Softdev
          Nov 12 at 12:11


















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