How can I let visitors share script output on Facebook?

[Marc]

I know how to write standard Open Graph tags for things like articles. However, I wrote a script that dynamically generates some specific output (say, a unique string) and want to allow visitors to share something like "I just generated 'X' at {sitename}". Amazon does this for book purchases. How do I do that?

[299]

This site should help: https://developers.facebook.com/docs/guides/web/