Exchange a SAML 2.0 Assertion for an OAuth 2.0 Access Token (RFC 7522)
Exchange a Base64-encoded SAML 2.0 assertion for an OAuth 2.0 access token. The assertion is typically obtained from a SAML Identity Provider.
/oauth2/default/v1/token
grant_type=urn:ietf:params:oauth:grant-type:saml2-bearer
Test the access token by making an authenticated API request to a resource server.