curl --request GET \
  --url 'https://cockroachlabs.cloud/api/v1/clusters/{cluster_id}/connection-string?database=SOME_STRING_VALUE&sql_user=SOME_STRING_VALUE&os=SOME_STRING_VALUE' \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'

{
  "connection_string": "<string>",
  "params": {}
}

{
  "code": 123,
  "details": [
    {
      "@type": "<string>"
    }
  ],
  "message": "<string>"
}