* `/items/{item_id}` _yolu_ `item_id` adlı `int` qiyməti almalı olan _yol parametrinə_ sahibdir.
* `/items/{item_id}` _yolunun_ `q` adlı yol parametri var və bu parametr istəyə bağlı olsa da, `str` qiymətini almalıdır.

### İnteraktiv API Sənədləri

İndi <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a> ünvanına daxil olun.

在许多情况下，您的应用程序可能需要一些外部设置或配置，例如密钥、数据库凭据、电子邮件服务的凭据等等。

这些设置中的大多数是可变的（可以更改的），比如数据库的 URL。而且许多设置可能是敏感的，比如密钥。

因此，通常会将它们提供为由应用程序读取的环境变量。

## 环境变量

/// tip

如果您已经知道什么是"环境变量"以及如何使用它们，请随意跳到下面的下一节。

///

环境变量（也称为"env var"）是一种存在于 Python 代码之外、存在于操作系统中的变量，可以被您的 Python 代码（或其他程序）读取。

您可以在 shell 中创建和使用环境变量，而无需使用 Python：

//// tab | Linux、macOS、Windows Bash

<div class="termy">

```console
// 您可以创建一个名为 MY_NAME 的环境变量

						{PrimaryKey: "ID", PrimarySchema: "Country", ForeignKey: "CountryID", ForeignSchema: "Org"},
					},
				},
			},
		},
	})
}

func TestVariableRelation(t *testing.T) {
	var result struct {
		User
	}

	checkStructRelation(t, &result, Relation{
		Name: "Account", Type: schema.HasOne, Schema: "", FieldSchema: "Account",
		References: []Reference{

```

**Not**:

Eğer bu konu hakkında bilginiz yoksa <a href="https://fastapi.tiangolo.com/tr/async/#in-a-hurry" target="_blank">`async` ve `await`</a> dokümantasyonundaki _"Aceleniz mi var?"_ kısmını kontrol edebilirsiniz.

</details>

### Kodu Çalıştıralım

Sunucuyu aşağıdaki komutla çalıştıralım:

<div class="termy">

```console
$ uvicorn main:app --reload

pkg syscall (freebsd-386-cgo), type Timeval struct, Usec int32
pkg syscall (freebsd-386-cgo), type WaitStatus uint32
pkg syscall (freebsd-386-cgo), var Stderr int
pkg syscall (freebsd-386-cgo), var Stdin int
pkg syscall (freebsd-386-cgo), var Stdout int
pkg syscall (freebsd-amd64), const F_DUP2FD_CLOEXEC = 18
pkg syscall (freebsd-amd64), const F_DUP2FD_CLOEXEC ideal-int

- There is now support for collecting pod logs under `/var/log/pods/NAMESPACE_NAME_UID` to stackdriver with `k8s_pod` resource type. ([#74502](https://github.com/kubernetes/kubernetes/pull/74502), [@Random-Liu](https://github.com/Random-Liu))

    assertThat(parse(url, "a=b ; SameSite=Lax ;")!!.sameSite).isEqualTo("Lax")
    assertThat(parse(url, "a=\r\t \nb\n; \rSameSite=\n \tLax")!!.sameSite).isEqualTo("Lax")
  }

  @Test fun builderSameSiteTrimmed() {
    var cookieBuilder =
      Cookie.Builder()
        .name("a")
        .value("b")
        .domain("example.com")

    assertThrows<IllegalArgumentException> {
      cookieBuilder.sameSite(" a").build()
    }

`client-certificate: /var/lib/kubelet/pki/kubelet-client-current.pem` and `client-key: /var/lib/kubelet/pki/kubelet-client-current.pem`, replacing the embedded client certificate and key. ([#84118](https://github.com/kubernetes/kubernetes/pull/84118), [@neolit123](https://github.com/neolit123))

* kubelet `--cert-dir` now defaults to `/var/lib/kubelet/pki`, in order to ensure bootstrapped and rotated certificates persist beyond a reboot. resolves an issue in kubeadm with false-positive `/var/lib/kubelet is not empty` message during pre-flight checks ([#53317](https://github.com/kubernetes/kubernetes/pull/53317), [@liggitt](https://github.com/liggitt))

func (e errorCodeMap) ToAPIErr(errCode APIErrorCode) APIError {
	return e.ToAPIErrWithErr(errCode, nil)
}

// error code to APIError structure, these fields carry respective
// descriptions for all the error responses.
var errorCodes = errorCodeMap{
	ErrInvalidCopyDest: {
		Code:           "InvalidRequest",