# 密钥管理

### FON设置Web3 <a href="#setup-web3" id="setup-web3"></a>

`web3.js`是一个 JavaScript 库，它允许我们的客户端应用程序与区块链对话。我们将 web3 配置为通过 Metamask 进行通信。

`web3.js`医生在[这里](https://web3js.readthedocs.io/en/v1.2.2/getting-started.html#adding-web3-js)

### 连接到 FSC网络 <a href="#connect-to-bsc-network" id="connect-to-bsc-network"></a>

```
    // mainnet 
     const web3 = new Web3('https://fsc-dataseed1.fonscan.io:443');
```

### 设置帐户 <a href="#set-up-account" id="set-up-account"></a>

如果 web3 的安装和实例化成功，下面应该成功返回一个随机帐户：

```
    const account = web3.eth.accounts.create();
```

### 恢复帐户 <a href="#recover-account" id="recover-account"></a>

如果您备份了您的账户私钥，您可以使用它来恢复您的账户。

```
    const account = web3.eth.accounts.privateKeyToAccount("$private-key")
```

### 完整示例 <a href="#full-example" id="full-example"></a>

```
const Web3 = require('web3');
async function main() {

    const web3 = new Web3('https://fsc-dataseed1.fonscan.io:443');
    const loader = setupLoader({ provider: web3 }).web3;

    const account = web3.eth.accounts.create();
    console.log(account);
}
```


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.fonscan.io/zh_cn/bridgewallet/key.md?ask=<question>
```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.