When requesting a refresh token use grant_type: refresh_token.
Example: http://127.0.0.1:8080/oidc/tenant1/token-endpoint
These parameters must be posted as a part of the URL-encoded form values.
Note: Mandatory request parameters can be configured on each OIDC provider. Mandatory values below are the default behaviour.
refresh_token
the current refresh token.
grant_type
Supported value is refresh_token.