![]() ![]() Powershell may not necessarily be the first choice for this task, but given its prevalence, it’s worth knowing its capabilities. Although web scraping sounds like something fairly simple, in practice it can prove to be surprisingly tedious. For example, it could be desired to create a RSS feed based on a the content of a web page or you may want to collect publicly available information as part of a Red Team engagement. There are many reasons for such data extractions. Therefore, suitable tools are needed to retrieve the desired information from this data medley. While this data is necessary for the functionality and look and feel of a website, it is rather impeding from a data extraction perspective. Technically, content data, such as the text of an article, is mixed with control data, metadata, formatting information, images, and other data. ![]() This requires essentially two steps: First, the data must be retrieved from the web server as specifically as possible, and second, this data must be programmatically interpreted (parsed) so that the desired information can then be extracted for further processing.Īlthough modern websites increasingly offer APIs and many web applications use APIs for data access, web pages are usually formatted for human consumption. In the broadest sense, the term web scraping refers to the more or less automated extraction of information from web pages. ![]() ![]() With current web browsers the useful XPath expressions can be easily generated.With a little effort, the request parameters can be customized to a large extent.There are significant differences between the Powershell versions.Powershell offers potent functionalities for executing HTTP requests.Request.AddParameter("application/json", json, ParameterType.RequestBody) Using HttpWebRequest var httpRequest = (HttpWebRequest) WebRequest.Create(uri) I anycodings_c# would say the body of the request and the anycodings_c# headers are set in the same way, so I don't anycodings_c# understand what's wrong. I'm trying to send a simple post request in anycodings_c# 3 different ways, first two are failing with anycodings_c# 400 Bad Request, only RestSharp works. ![]()
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