},
                            "type": "array",
                            "title": "Location",
                        },
                        "msg": {"type": "string", "title": "Message"},
                        "type": {"type": "string", "title": "Error Type"},
                    },
                    "type": "object",
                    "required": ["loc", "msg", "type"],

// but accepts the error message directly (this allows messages to be
// dynamically generated.)
func writeCustomErrorResponseJSON(ctx context.Context, w http.ResponseWriter, err APIError,
	errBody string, reqURL *url.URL,
) {
	reqInfo := logger.GetReqInfo(ctx)
	errorResponse := APIErrorResponse{
		Code:       err.Code,
		Message:    errBody,
		Resource:   reqURL.Path,

                            "items": {
                                "anyOf": [{"type": "string"}, {"type": "integer"}]
                            },
                        },
                        "msg": {"title": "Message", "type": "string"},
                        "type": {"title": "Error Type", "type": "string"},
                    },
                },
                "HTTPValidationError": {

                            "items": {
                                "anyOf": [{"type": "string"}, {"type": "integer"}]
                            },
                        },
                        "msg": {"title": "Message", "type": "string"},
                        "type": {"title": "Error Type", "type": "string"},
                    },
                },
                "HTTPValidationError": {

    assertThat(response1.code).isEqualTo(HttpURLConnection.HTTP_OK)
    assertThat(response1.message).isEqualTo("A-OK")
    val response2 = get(valid)
    assertThat(response2.body.string()).isEqualTo("A")
    assertThat(response2.code).isEqualTo(HttpURLConnection.HTTP_OK)
    assertThat(response2.message).isEqualTo("A-OK")
    val invalid = server.url("/invalid")
    val response3 = get(invalid)

      key = "has_space "
      cache.edit(key)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("keys must match regex [a-z0-9_-]{1,120}: \"$key\"")
    }
    assertFailsWith<IllegalArgumentException> {
      key = "has_CR\r"
      cache.edit(key)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("keys must match regex [a-z0-9_-]{1,120}: \"$key\"")
    }

				writeErrorResponse(ctx, w, errorCodes.ToAPIErr(apiErrCode), r.URL)
				return
			}
			apiErr := errorCodes.ToAPIErr(apiErrCode)
			deleteResults[index].errInfo = DeleteError{
				Code:      apiErr.Code,
				Message:   apiErr.Description,
				Key:       object.ObjectName,
				VersionID: object.VersionID,
			}
			continue
		}
		if object.VersionID != "" && object.VersionID != nullVersionID {

					}
				}
			}
			if ctx.Namespace() == "" {
				fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\n", gwc.Namespace, gwc.Name, cond.Status, cond.Type, cond.Reason, cond.Message)
			} else {
				fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\n", gwc.Name, cond.Status, cond.Type, cond.Reason, cond.Message)
			}

			if programmed {
				break
			}
			if time.Since(startTime) > waitTimeout {

Но оно будет обработано `unicorn_exception_handler`.

Таким образом, вы получите чистую ошибку с кодом состояния HTTP `418` и содержимым JSON:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | "Технические детали"

Также можно использовать `from starlette.requests import Request` и `from starlette.responses import JSONResponse`.

```Python hl_lines="18  21  23"
{!../../docs_src/path_params/tutorial005.py!}
```
Вы отправите клиенту такой JSON-ответ:

```JSON
{
  "model_name": "alexnet",
  "message": "Deep Learning FTW!"
}
```

## Path-параметры, содержащие пути

Предположим, что есть *операция пути* с путем `/files/{file_path}`.