curl --request GET \
  --url https://api.prelude.dev/v2/session/apps/{appID}/config/migration \
  --header 'Authorization: Bearer <token>'

{
  "config": {
    "session_validation_url": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}