Much like DownloadFile except if the file has already been downloaded or exists locally, it will not be re-downloaded.

Requests a file to be downloaded from the given Url to the local file-system. Often used for scraping documents, assets and images.

Normally called with an Parse Method of IronWebScraper.WebScraper

public virtual string DownloadFileUnique(
	string url,
	string path,
	HttpIdentity identity = null
)

Public Overridable Function DownloadFileUnique ( 
	url As String,
	path As String,
	Optional identity As HttpIdentity = Nothing
) As String