```

他们将收到一个**错误**响应，告诉他们查询参数 `tool` 是不允许的：

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["query", "tool"],
            "msg": "Extra inputs are not permitted",
            "input": "plumbus"
        }
    ]
}
```

## 总结

你可以使用 **Pydantic 模型**在 **FastAPI** 中声明**查询参数**。😎

/// tip

```JSON
{
    "detail": [
        {
            "loc": [
                "path",
                "item_id"
            ],
            "msg": "value is not a valid integer",
            "type": "type_error.integer"
        }
    ]
}
```

eine Textversion mit:

```
Validation errors:

		return err
	}
	logJSON, err := json.Marshal(&entry)
	if err != nil {
		return err
	}
	msg := sarama.ProducerMessage{
		Topic: h.kconfig.Topic,
		Value: sarama.ByteEncoder(logJSON),
	}
	_, _, err = h.producer.SendMessage(&msg)
	if err != nil {
		atomic.StoreInt32(&h.status, statusOffline)
	} else {
		atomic.StoreInt32(&h.status, statusOnline)
	}
	return err

* `extra`: `Mr. Poopybutthole`

`extra` 필드가 허용되지 않는다는 오류 응답을 받게 됩니다:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["body", "extra"],
            "msg": "Extra inputs are not permitted",
            "input": "Mr. Poopybutthole"
        }
    ]
}
```

## 요약

```

他們將收到一個**錯誤**回應，告訴他們查詢參數 `tool` 是不允許的：

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["query", "tool"],
            "msg": "Extra inputs are not permitted",
            "input": "plumbus"
        }
    ]
}
```

## 總結

你可以使用 **Pydantic 模型**在 **FastAPI** 中聲明**查詢參數**。😎

/// tip

                return response;
            }

            @Override
            public void setResponse(CommonServerMessageBlockResponse msg) {
                this.response = msg;
            }

            @Override
            public long getMid() {
                return mid;
            }

            @Override
            public void setMid(long mid) {

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["cookie", "santa_tracker"],
            "msg": "Extra inputs are not permitted",
            "input": "good-list-please",
        }
    ]
}
```

## Summary { #summary }

			doneCh = nil
		case resp, ok := <-s.responses:
			if !ok {
				done = true
				return nil
			}
			if resp.Err != nil {
				s.cancel(resp.Err)
				return resp.Err
			}
			err = next(resp.Msg)
			if err != nil {
				s.cancel(err)
				return err
			}
		}
	}
}

// Done will return a channel that will be closed when the stream is done.
// This mirrors context.Done().

}

func errUnsupportedCast(fromType, toType string) error {
	return fmt.Errorf("Cannot cast from %v to %v", fromType, toType)
}

func errCastFailure(msg string) error {
	return fmt.Errorf("Error casting: %s", msg)
}

// Allowed cast types
const (
	castBool      = "BOOL"
	castInt       = "INT"
	castInteger   = "INTEGER"
	castString    = "STRING"
	castFloat     = "FLOAT"

...without adding the required parameter `needy`, you will see an error like:

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

As `needy` is a required parameter, you would need to set it in the URL:

```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```