> For the complete documentation index, see [llms.txt](https://docs.decentraland.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.decentraland.org/contributor/contributor-zh/chang-jing-yun-xing-shi/yun-xing-shi-mo-kuai/signed-fetch.md).

# 签名获取

该 `SignedFetch` 模块提供了……的实现 `fetch` 该接口透明地符合…… [签名请求](https://github.com/decentraland/docs/blob/main/auth/signed_fetch/README.md) 该协议，定义了如何附加已签名的 [认证链](https://github.com/decentraland/docs/blob/main/auth/authchain/README.md) 到出站请求中。

对该请求进行签名和验证的步骤详见 [认证链](https://github.com/decentraland/docs/blob/main/contributor/auth/authchain/README.md) 页面。

使用 `SignedFetch` 在场景中使用……需要 [`USE_FETCH`](https://github.com/decentraland/docs/blob/main/contributor/content/entity-types/scenes/README.md#permissions) 权限。

### 方法

**`signedFetch`**

像使用（[`fetch`](https://github.com/decentraland/docs/blob/main/contributor/globals/README.md#http)）那样发出 HTTP 请求，自动添加验证头。

```ts
接口 Request {
  // 请求目标 URL：
  url: string;

  // 请求的可选、自解释参数：
  init?: {
    method?: string;
    body?: string;
    headers: { [key: string]: string };
  };
}

interface Response {
  // HTTP 请求是否成功执行（非 2xx 状态码不视为失败）
  ok: boolean;

  // 响应的自解释细节：
  status: number;
  statusText: string;
  headers: { [key: string]: string };
  body: string;
}

function signedFetch(Request): Promise<Response>;
```


---

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```
GET https://docs.decentraland.org/contributor/contributor-zh/chang-jing-yun-xing-shi/yun-xing-shi-mo-kuai/signed-fetch.md?ask=<question>&goal=<endgoal>
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