serviceReloadDynamic                      // Reload dynamic config values.
	serviceFreeze                             // Freeze all S3 API calls.
	serviceUnFreeze                           // Un-Freeze previously frozen S3 API calls.
	// Add new service requests here.
)

// Global service signal channel.
var globalServiceSignalCh = make(chan serviceSignal)

            doColumn("parameter_name");
        }

        public void columnPermissions() {
            doColumn("permissions");
        }

        public void columnToken() {
            doColumn("token");
        }

        public void columnUpdatedBy() {
            doColumn("updatedBy");
        }

        public void columnUpdatedTime() {
            doColumn("updatedTime");
        }
    }

</div>

📂 👆 🖥 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

📤 👆 💪 ⚒:

*  "🏬 🆔", ⚙️ ➡.
*  "🤝" ⚙️ 🔢 🔢.

/// tip

👀 👈 🔢 `token` 🔜 🍵 🔗.

///

⏮️ 👈 👆 💪 🔗 *️⃣ &amp; ⤴️ 📨 &amp; 📨 📧:

<img src="/img/tutorial/websockets/image05.png">

## 🚚 🔀 &amp; 💗 👩‍💻

    * Um parâmetro query.
    * Um header.
    * Um cookie.
* `http`: padrão HTTP de sistemas autenticação, incluindo:
    * `bearer`: um header de `Authorization` com valor de `Bearer` adicionado de um token. Isso é herança do OAuth2.
    * HTTP Basic authentication.
    * HTTP Digest, etc.
* `oauth2`: todas as formas do OAuth2 para lidar com segurança (chamados "fluxos").

By default this plugin uses HTTP 1.x. To enable HTTP2 use the `MINIO_POLICY_PLUGIN_ENABLE_HTTP2` environment variable.

## Request and Response

MinIO will make a `POST` request with a JSON body to the given plugin URL. If the auth token parameter is set, it will be sent as an authorization header.

The JSON body structure can be seen from this sample:

<details><summary>Request Body Sample</summary>

```json
{
  "input": {

    protected EditBody createEditBody(final KuromojiItem entity, final String dictId) {
        final EditBody body = new EditBody();
        body.id = entity.getId();
        body.dictId = dictId;
        body.token = entity.getToken();
        body.reading = entity.getReading();
        body.pos = entity.getPos();
        body.segmentation = entity.getSegmentation();
        return body;
    }

# OAuth2 实现密码哈希与 Bearer  JWT 令牌验证

至此，我们已经编写了所有安全流，本章学习如何使用 <abbr title="JSON Web Tokens">JWT</abbr> 令牌（Token）和安全密码哈希（Hash）实现真正的安全机制。

本章的示例代码真正实现了在应用的数据库中保存哈希密码等功能。

接下来，我们紧接上一章，继续完善安全机制。

## JWT 简介

JWT 即**JSON 网络令牌**（JSON Web Tokens）。

JWT 是一种将 JSON 对象编码为没有空格，且难以理解的长字符串的标准。JWT 的内容如下所示：

```

👥 🔜 🔌 👉 `APIRouter` 👑 `FastAPI` 📱, ✋️ 🥇, ➡️ ✅ 🔗 & ➕1️⃣ `APIRouter`.

## 🔗

👥 👀 👈 👥 🔜 💪 🔗 ⚙️ 📚 🥉 🈸.

👥 🚮 👫 👫 👍 `dependencies` 🕹 (`app/dependencies.py`).

👥 🔜 🔜 ⚙️ 🙅 🔗 ✍ 🛃 `X-Token` 🎚:

```Python hl_lines="1  4-6" title="app/dependencies.py"
{!../../docs_src/bigger_applications/app/dependencies.py!}
```

/// tip

👥 ⚙️ 💭 🎚 📉 👉 🖼.

                                                        data-href="${contextPath}/admin/dict/kuromoji/details/${f:u(dictId)}/4/${f:u(data.id)}">
                                                    <td>${f:h(data.token)}</td>
                                                    <td>${f:h(data.reading)}</td>
                                                </tr>
                                            </c:forEach>

	}
}

// recordTypedefs remembers in p.typedefs all the typedefs used in dtypes and its children.
func (p *Package) recordTypedefs(dtype dwarf.Type, pos token.Pos) {
	p.recordTypedefs1(dtype, pos, map[dwarf.Type]bool{})
}

func (p *Package) recordTypedefs1(dtype dwarf.Type, pos token.Pos, visited map[dwarf.Type]bool) {
	if dtype == nil {
		return
	}
	if visited[dtype] {
		return
	}
	visited[dtype] = true