Extracting data from websites by manipulating the Document Object Model with the help of Javascript and Ajax

Currently, I am in search of data for educational purposes from a website. Specifically, the website focuses on statistics in web development. The challenge lies in the fact that this particular site uses Javascript/Ajax to constantly update numbers. I would appreciate any input or suggestions on how to effectively gather data in this scenario. Simply retrieving the page source does not contain the necessary data. XQuery seems like a potential solution if I can obtain the updated DOM tree, however, that step has not been achieved yet. Using Firebug in Firefox, I am able to observe the tree being updated but extracting the code from there proves difficult. Any advice or guidance on an easier method to access this information is greatly appreciated. Thank you for your assistance.

javascriptajaxdynamicweb-scraping

Answer №1

If the website isn't too complex, there may be a way to avoid using JavaScript altogether. Check out the AJAX requests in Firebug and see if they follow a predictable pattern, such as always being something like /getData?item_id=123. In that case, you could likely extract the data using a scripting language.

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