Elasticsearch with SAML

I got Kibana authentication via SAML working. But not with elasticsearch.

I try curl -XPOST to index and json file with the -u flag, username@domain. It prompted me to enter a password, but the log said, it failed to authenticate.

Anyone successfully implement elasticsearch with saml and curl?

Thanks

Found the answer, thanks

SAML
The Security plugin supports user authentication through SAML single sign-on. The Security plugin implements the web browser SSO profile of the SAML 2.0 protocol.

This profile is meant for use with web browsers. It is not a general-purpose way of authenticating users against the Security plugin, so its primary use case is to support Kibana single sign-on.