To exclude a query parameter from the generated OpenAPI schema (and thus, from the automatic documentation systems), set the parameter `include_in_schema` of `Query` to `False`:

{* ../../docs_src/query_params_str_validations/tutorial014_an_py310.py hl[10] *}

## Custom Validation { #custom-validation }

Você teria **um único objeto `engine`** para todo o seu código se conectar ao mesmo banco de dados.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

Usar `check_same_thread=False` permite que o FastAPI use o mesmo banco de dados SQLite em diferentes threads. Isso é necessário, pois **uma única requisição** pode usar **mais de uma thread** (por exemplo, em dependências).

            final StatsObject data = e.getValue();
            final Long begin = data.remove(BEGIN_KEY);
            if (begin != null) {
                printStats(e.getKey(), data, begin, false);
            }
        });

    }

    /**
     * Begins statistics tracking for the specified crawler object.
     * Creates a new statistics object in the cache and starts timing.
     *

    }

    /**
     * Checks if duplicate term removal is enabled in configuration.
     *
     * @return true if duplicate terms should be removed, false otherwise
     */
    protected boolean isDuplicateTermRemoved() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return fessConfig.isCrawlerDocumentDuplicateTermRemoved();
    }

                    }
                } catch (Exception e) {
                    log.warn("Health check failed for channel {}: {}", channel.getChannelId(), e.getMessage());
                    channel.setHealthy(false);
                }
            }
        }
    }

    private boolean checkChannelHealth(ChannelInfo channel) {
        // Simplified health check - in real implementation would send a ping/echo

Call the endpoint `/users/me/`, you will get the response as:

```JSON
{
  "username": "johndoe",
  "email": "******@****.***",
  "full_name": "John Doe",
  "disabled": false
}
```

<img src="/img/tutorial/security/image09.png">

///

### Desactivar el server automático de `root_path`

Si no quieres que **FastAPI** incluya un server automático usando el `root_path`, puedes usar el parámetro `root_path_in_servers=False`:

{* ../../docs_src/behind_a_proxy/tutorial004.py hl[9] *}

y entonces no lo incluirá en el esquema de OpenAPI.

## Montando una sub-aplicación

        // Make file unreadable on Unix-like systems
        boolean isWindows = System.getProperty("os.name").toLowerCase().contains("windows");
        if (!isWindows) {
            assertTrue(lmhostsFile.setReadable(false));
        }

        when(mockConfig.getLmHostsFileName()).thenReturn(lmhostsFile.getAbsolutePath());

        if (!isWindows) {
            // Should handle IOException gracefully and return null

                    trans2QueryFSInfo.toString();
                    success[index] = true;
                } catch (Exception e) {
                    e.printStackTrace();
                    success[index] = false;
                }
            });
            threads[i].start();
        }

        // Wait for all threads to complete
        for (Thread thread : threads) {
            thread.join();
        }

                    trans2SetFileInfo.toString();
                    success[index] = true;
                } catch (Exception e) {
                    e.printStackTrace();
                    success[index] = false;
                }
            });
            threads[i].start();
        }

        // Wait for all threads to complete
        for (Thread thread : threads) {
            thread.join();
        }