Custom out-of-band POST value from SP during SSO request.

SAML for ASP.NET Core
1

I need to submit custom hidden form value during SP-initiated SSO to IdP. The value is dynamic, and only needed for SSO, not for SLO. What’s the easiest way to do that? I have looked at HttpPostForm class, but I don’t see an easy way of adding new hidden variable to the POST. Would appreciate code example as well.

Thanks,
Eric

2

Hi Eric,
This is possible by implementing the IHttpPostForm interface as described in the IHttpPostForm and HttpPostForm sections of the Developer Guide.
https://www.componentspace.com/Forums/8235/Developer-Guide
However, please contact support@componentspace.com mentioning your forum post.
We’d like to fully understand your requirements and potentially make available a beta release that simplifies the implementation.