StateConnected

	// StateConnectionError is the state once a connection attempt has been made, and it failed.
	// The connection will remain in this stat until the connection has been successfully re-established.
	StateConnectionError

	// StateShutdown is the state when the server has been shut down.
	// This will not be used under normal operation.
	StateShutdown

    ```java
    Headers headers = Headers.of(name1, value1, name2, value2, ...).
    ```

 *  New: Make the content-type header optional for request bodies.
 *  New: `Response.isSuccessful()` is a convenient API to check response codes.
 *  New: The response body can now be read outside of the callback. Response
    bodies must always be closed, otherwise they will leak connections!

pydantic>=2.7.0,<3.0.0
```

И обычно вы установите эти зависимости командой `pip`, например:

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%
Successfully installed fastapi pydantic
```

</div>

/// info | Информация

Существуют и другие форматы и инструменты для описания и установки зависимостей.

///

		if _, ok := err.(ObjectNotFound); !ok {
			t.Errorf("Expect %v but received %v", ObjectNotFound{Bucket: bucket, Object: object}, err)
		}
	}

	// since majority of xl.meta's are not available, object should be successfully deleted.
	_, err = objLayer.GetObjectInfo(ctx, bucket, object, ObjectOptions{})
	if _, ok := err.(ObjectNotFound); !ok {
		t.Errorf("Expect %v but received %v", ObjectNotFound{Bucket: bucket, Object: object}, err)
	}

      int crossOver = crossOver(vacated, toTrickle);
      if (crossOver == vacated) {
        return null;
      }
      // Successfully crossed over from min to max.
      // Bubble up max levels.
      E parent;
      // If toTrickle is moved up to a parent of removeIndex, the parent is

//
// `device_name` must not name an existing physical or custom device. It must
// follow the format:
//
//    /job:<name>/replica:<replica>/task:<task>/device:<type>:<device_num>
//
// If the device is successfully registered, `status` is set to TF_OK. Otherwise
// the device is not usable. In case of a bad status, `device.delete_device` is
// still called on `device_info` (i.e. the caller does not retain ownership).
//

pydantic>=2.7.0,<3.0.0
```

And you would normally install those package dependencies with `pip`, for example:

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%
Successfully installed fastapi pydantic
```

</div>

/// info

There are other formats and tools to define and install package dependencies.

///

pydantic>=2.7.0,<3.0.0
```

Et vous installerez normalement ces dépendances de paquets avec `pip`, par exemple :

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%
Successfully installed fastapi pydantic
```

</div>

/// info

Il existe d'autres formats et outils pour définir et installer des dépendances de paquets.

///

Puis APIStar a cessé d'exister en tant que serveur et Starlette a été créé, et a constitué une meilleure base pour un tel système. Ce fut l'inspiration finale pour construire **FastAPI**.

Je considère **FastAPI** comme un « successeur spirituel » d'APIStar, tout en améliorant et en augmentant les fonctionnalités, le système de typage et d'autres parties, sur la base des enseignements tirés de tous ces outils précédents.

///

```
fastapi[standard]>=0.113.0,<0.114.0
pydantic>=2.7.0,<3.0.0
```

通常你会用 `pip` 安装这些依赖，例如：

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%
Successfully installed fastapi pydantic
```

</div>

/// info | 信息

还有其他格式和工具可以定义并安装包依赖。

///

### 编写 **FastAPI** 代码 { #create-the-fastapi-code }

* 创建 `app` 目录并进入
* 创建空文件 `__init__.py`