**FastAPI** 支持同时声明**请求体**、**路径参数**和**查询参数**。

**FastAPI** 能够正确识别这三种参数，并从正确的位置获取数据。

{* ../../docs_src/body/tutorial004_py310.py hl[16] *}

函数参数按如下规则进行识别：

- **路径**中声明了相同参数的参数，是路径参数
- 类型是（`int`、`float`、`str`、`bool` 等）**单类型**的参数，是**查询**参数
- 类型是 **Pydantic 模型**的参数，是**请求体**

/// note | 笔记

因为默认值是 `None`， FastAPI 会把 `q` 当作可选参数。

FastAPI 不使用 `Optional[str]` 中的 `Optional`， 但 `Optional` 可以让编辑器提供更好的支持，并检测错误。

///

)

type aggVal struct {
	runningSum             *Value
	runningCount           int64
	runningMax, runningMin *Value

	// Stores if at least one record has been seen
	seen bool
}

func newAggVal(fn FuncName) *aggVal {
	switch fn {
	case aggFnAvg, aggFnSum:
		return &aggVal{runningSum: FromFloat(0)}
	case aggFnMin:
		return &aggVal{runningMin: FromInt(0)}
	case aggFnMax:

	errInvalidKeypath         = errors.New("A provided keypath is invalid")
)

// qProp contains analysis info about an SQL term.
type qProp struct {
	isAggregation, isRowFunc bool

	err error
}

// `combine` combines a pair of `qProp`s, so that errors are
// propagated correctly, and checks that an aggregation is not being
// combined with a row-function term.

)

type kmsTestCase struct {
	name   string
	method string
	path   string
	query  map[string]string

	// User credentials and policy for request
	policy string
	asRoot bool

	// Wanted in response.
	wantStatusCode int
	wantKeyNames   []string
	wantResp       []string
}

func TestKMSHandlersCreateKey(t *testing.T) {
	adminTestBed, tearDown := setupKMSTest(t, true)

Параметры функции будут распознаны следующим образом:

* Если параметр также объявлен в **пути**, он будет использоваться как параметр пути.
* Если параметр имеет **скалярный тип** (например, `int`, `float`, `str`, `bool` и т. п.), он будет интерпретирован как параметр **запроса**.
* Если параметр объявлен как тип **модели Pydantic**, он будет интерпретирован как **тело** запроса.

/// note | Заметка

            The URL of the favicon to use. It is normally shown in the browser tab.
            """
        ),
    ] = "https://fastapi.tiangolo.com/img/favicon.png",
    with_google_fonts: Annotated[
        bool,
        Doc(
            """
            Load and use Google Fonts.
            """
        ),
    ] = True,
) -> HTMLResponse:
    """

                "url": author.url,
            }
            users[user] = user_data
            users_list.append(user_data)
    return users_list


def update_content(*, content_path: Path, new_content: Any) -> bool:
    old_content = content_path.read_text(encoding="utf-8")

    new_content = yaml.dump(new_content, sort_keys=False, width=200, allow_unicode=True)
    if old_content == new_content:

	testResults = append(testResults, result{dir, entries})
	return testResults
}

// checkResult - checks whether entries are got are same as expected entries.
func checkResult(expected []string, got []string) bool {
	// If length of expected and got slice are different, the test actually failed.
	if len(expected) != len(got) {
		return false
	}

	for i := range expected {

	// When FileNameFunc is not specified, DefaultFilenameFunc will be used.
	FileNameFunc func() string

	// Compress specify if you want the logs to be compressed after rotation.
	Compress bool
}

// Writer is a concurrency-safe writer with file rotation.
type Writer struct {
	// opts are the configuration options for this Writer
	opts Options

	// f is the currently open file used for appends.

	traceAllFlag

	// pass this flag to skip checking if object layer is available
	noObjLayerFlag
)

// Has checks if the given flag is enabled in `h`.
func (h hFlag) Has(flag hFlag) bool {
	// Use bitwise-AND and check if the result is non-zero.
	return h&flag != 0
}

// adminMiddleware performs some common admin handler functionality for all
// handlers:
//