A .net metadata scraper that supports X (nee Twitter) Cards and Open Graph.
Unfurl.Net is published as a NuGet package. Download from your favorite nuget package manager.
--or--
Install from the command line with:
dotnet add package Unfurl.NetUnfurl.Net is inspired by the unfurl.js nodejs project which parses meta data from HTML content and turns it into a convenient object model for displaying URL previews and cards similar to how Facebook, Slack, Discord, or Twitter do.
This library just parses the Html for OpenGraph and Twitter Card <meta /> tags and turns it into an easy to use object. It does not actually build a visual representation of the Url.
Unfurl.Net is a simple library that depends on the venerable HtmlAgilityPack for its parsing.
The current features are sufficient for my needs. But if there are any additional features you would like to see, please add an issue (or even submit a PR if you want) and I will work on adding them.
Here are some features that could be added:
- Accept Html as a string or stream for parsing, and not just a Url that has to be downloaded. This will allow alternate methods of downloading Urls and Unfurl.Net can be used simply as the parser, not also as the Html downloader.
- Work with oEmbed data. oEmbed requires looking for the oEmbed tag (which unfurl.net does now) and then downloading the Json or Xml file referenced in that tag. At this point, I hadn't come across a lot of oEmbed tags, so I didn't implement that feature. But if this changes in the future, I will add that (or, again, feel free to request this feature in an issue.)