$ curl -H "Accept: application/json" -s \
  'http://127.0.0.1:4433/self-service/registration/flows?id=f71b24aa-92d4-49a7-957b-72eea1c4c39d' \
  | jq -r '.methods.oidc.config'

{
  "action": "http://127.0.0.1:4433/self-service/methods/oidc/auth/f71b24aa-92d4-49a7-957b-72eea1c4c39d",
  "method": "POST",
  "fields": [
    {
      "name": "csrf_token",
      "type": "hidden",
      "required": true,
      "value": "oc9VAZ5c/nvHYkb7G/z+FSn2o5kKzylFSnje6bsSANrn6+bTiE7v7+PA+U2CFSK3f8ZwGIRrjQOAt4duG2XYSQ=="
    },
    {
      "name": "traits.email",
      "type": "text",
      "value": "aeneas@ory.sh"
    },
    {
      "name": "traits.website",
      "type": "",
      "messages": [
        {
          "id": 4000002,
          "text": "Property website is missing.",
          "type": "error",
          "context": {
            "property": "website"
          }
        }
      ]
    },
    {
      "name": "provider",
      "type": "submit",
      "value": "github"
    }
  ]
}
