It would be nice to have a session endpoint to call for Cookie authentication in Confluence as well

Summary

There is no Confluence session endpoint to be called for cookie authentication as the one for JIRA documented in:

• Cookie-based auth for REST APIs

Workaround

If you have JIRA and Confluence on the same instance then you can call the JIRA session endpoint and, if the credentials used to authenticate the request have Confluence application access, you can use the cookie you retrieved to authenticate Confluence REST API calls.