title: Pinterest API 'bookmark' always returning the same string and data
body: <p>I am trying to use pagination the way it is instructed in the Pinterest API Documentation, by passing 'bookmark' as a parameter to the next GET request in order to get the next batch of data.</p>
  <p>However, the data returned is the EXACT same as the initial data I had received (without passing 'bookmark') and the value of 'bookmark' is also the same!</p>
  <p>With this issue present, I keep receiving the same data over and over and can't get the entirety of the data. In my case I'm trying to list all campaigns.</p>
  <p>Here is my python code:</p>
  <pre><code>url = f'https://api.pinterest.com/v5/ad_accounts/{ad_account_id}/campaigns'
  payload = f&quot;page_size=25&quot;
  headers = {
      &quot;Accept&quot;: &quot;text/plain&quot;,
      &quot;Content-Type&quot;: &quot;application/x-www-form-urlencoded&quot;,
      &quot;Authorization&quot;: f&quot;Bearer {access_token}&quot;
  }
  response = requests.request(&quot;GET&quot;, url, data=payload, headers=headers)
  print(response)
  feed = response.json()
  print(feed)
  bookmark=''
  if 'bookmark' in feed:
      bookmark = feed['bookmark']
  
  print(bookmark)
  
  while(bookmark != '' and bookmark != None and bookmark != 'null'):
      url = f'https://api.pinterest.com/v5/ad_accounts/{ad_account_id}/{level}s'
      payload = f&quot;page_size=25&amp;bookmark={bookmark}&quot;
      headers = {
          &quot;Accept&quot;: &quot;text/plain&quot;,
          &quot;Content-Type&quot;: &quot;application/x-www-form-urlencoded&quot;,
          &quot;Authorization&quot;: f&quot;Bearer {access_token}&quot;
      }
      response = requests.request(&quot;GET&quot;, url, data=payload, headers=headers)
      print(response)
      feed = response.json()
      print(feed)
      bookmark = feed['bookmark']
      print(bookmark)
  </code></pre>