* Copyright (C) 2023 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

 * Copyright (C) 2022 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  gcr.io/etcd-development/etcd:v3.3.9 \
  /usr/local/bin/etcd \
  --name s1 \
  --data-dir /etcd-data \
  --listen-client-urls http://0.0.0.0:2379 \
  --advertise-client-urls http://0.0.0.0:2379 \
  --listen-peer-urls http://0.0.0.0:2380 \
  --initial-advertise-peer-urls http://0.0.0.0:2380 \
  --initial-cluster s1=http://0.0.0.0:2380 \
  --initial-cluster-token tkn \
  --initial-cluster-state new
```

この例を実行し、ブラウザで <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a> を開くと、次のレスポンスが表示されます:

```JSON
{"item_id":3}
```

/// check | 確認

関数が受け取った（および返した）値は、文字列の `"3"` ではなく、Pythonの `int` としての `3` であることに注意してください。

したがって、型宣言を使用すると、**FastAPI**は自動リクエスト <abbr title="HTTPリクエストで受け取った文字列をPythonデータへ変換する">"解析"</abbr> を行います。

///

func writeSuccessNoContent(w http.ResponseWriter) {
	writeResponse(w, http.StatusNoContent, nil, mimeNone)
}

// writeRedirectSeeOther writes Location header with http status 303
func writeRedirectSeeOther(w http.ResponseWriter, location string) {
	w.Header().Set(xhttp.Location, location)
	writeResponse(w, http.StatusSeeOther, nil, mimeNone)
}

func writeSuccessResponseHeadersOnly(w http.ResponseWriter) {

Важно помнить, что ключ `sub` должен иметь уникальный идентификатор для всего приложения и представлять собой строку.

## Проверка в действии

Запустите сервер и перейдите к документации: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

Вы увидите пользовательский интерфейс вида:

<img src="/img/tutorial/security/image07.png">

Пройдите авторизацию так же, как делали раньше.

En este caso, si vas a:

```
http://127.0.0.1:8000/items/foo?short=1
```

o

```
http://127.0.0.1:8000/items/foo?short=True
```

o

```
http://127.0.0.1:8000/items/foo?short=true
```

o

```
http://127.0.0.1:8000/items/foo?short=on
```

o

```
http://127.0.0.1:8000/items/foo?short=yes
```

Nesse caso, se você for para:

```
http://127.0.0.1:8000/items/foo?short=1
```

ou

```
http://127.0.0.1:8000/items/foo?short=True
```

ou

```
http://127.0.0.1:8000/items/foo?short=true
```

ou

```
http://127.0.0.1:8000/items/foo?short=on
```

ou

```
http://127.0.0.1:8000/items/foo?short=yes
```

import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * Filter for handling Cross-Origin Resource Sharing (CORS) requests.
 * Processes CORS headers and handles preflight OPTIONS requests.
 */