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2 changes: 1 addition & 1 deletion 01_HelloVitalik/readme.md
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**推特**：[@0xAA_Science](https://twitter.com/0xAA_Science)

**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTFSolidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)
**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTF-Solidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)

所有代码和教程开源在github: [github.com/WTFAcademy/WTF-Ethers](https://github.com/WTFAcademy/WTF-Ethers)

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2 changes: 1 addition & 1 deletion 02_Provider/readme.md
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### 创建节点服务商的API Key

首先，你需要去节点服务商的网站注册并创建`API Key`。在`WTF Solidity极简教程`的工具篇，我们介绍了[Infura](https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL02_Infura/readme.md)和[Alchemy](https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md)两家公司`API Key`的创建方法，大家可以参考。
首先，你需要去节点服务商的网站注册并创建`API Key`。在`WTF Solidity极简教程`的工具篇，我们介绍了[Infura](https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL02_Infura/readme.md)和[Alchemy](https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md)两家公司`API Key`的创建方法，大家可以参考。

![Infura API Key](img/2-1.png)

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2 changes: 1 addition & 1 deletion 03_ReadContract/ReadContract.js
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import { ethers } from "ethers";

// 利用Alchemy的rpc节点连接以太坊网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);

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2 changes: 1 addition & 1 deletion 03_ReadContract/readme.md
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Expand Up @@ -55,7 +55,7 @@ const contract = new ethers.Contract(`address`, `abi`, `signer`);
```javascript
import { ethers } from "ethers";
// 利用Infura的rpc节点连接以太坊网络
// 准备Infura API Key, 教程：https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL02_Infura/readme.md
// 准备Infura API Key, 教程：https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL02_Infura/readme.md
const INFURA_ID = ''
// 连接以太坊主网
const provider = new ethers.JsonRpcProvider(`https://mainnet.infura.io/v3/${INFURA_ID}`)
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2 changes: 1 addition & 1 deletion 04_SendETH/SendETH.js
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import { ethers } from "ethers";

// 利用Alchemy的rpc节点连接以太坊测试网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);

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2 changes: 1 addition & 1 deletion 04_SendETH/readme.md
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Expand Up @@ -96,7 +96,7 @@ const wallet3 = ethers.Wallet.fromPhrase(mnemonic.phrase)
import { ethers } from "ethers";

// 利用Alchemy的rpc节点连接以太坊测试网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);
```
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2 changes: 1 addition & 1 deletion 05_WriteContract/WriteContract.js
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Expand Up @@ -7,7 +7,7 @@ import { ethers } from "ethers";
// import { ethers } from "https://cdn-cors.ethers.io/lib/ethers-5.6.9.esm.min.js";

// 利用Alchemy的rpc节点连接以太坊网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);

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2 changes: 1 addition & 1 deletion 05_WriteContract/readme.md
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Expand Up @@ -62,7 +62,7 @@ await tx.wait()

## 例子：与测试网`WETH`合约交互

`WETH` (Wrapped ETH)是`ETH`的带包装版本，将以太坊原生代币用智能合约包装成了符合`ERC20`的代币。对`WETH`合约更详细的内容可以参考WTF Solidity极简合约的[第41讲 WETH](https://github.com/AmazingAng/WTFSolidity/blob/main/41_WETH/readme.md)。
`WETH` (Wrapped ETH)是`ETH`的带包装版本，将以太坊原生代币用智能合约包装成了符合`ERC20`的代币。对`WETH`合约更详细的内容可以参考WTF Solidity极简合约的[第41讲 WETH](https://github.com/AmazingAng/WTF-Solidity/blob/main/41_WETH/readme.md)。

1. 创建`provider`，`wallet`变量。

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2 changes: 1 addition & 1 deletion 06_DeployContract/DeployContract.js
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4 changes: 2 additions & 2 deletions 06_DeployContract/readme.md
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## 部署智能合约

在以太坊上，智能合约的部署是一种特殊的交易：将编译智能合约得到的字节码发送到0地址。如果这个合约的构造函数有参数的话，需要利用`abi.encode`将参数编码为字节码，然后附在在合约字节码的尾部一起发送。对于ABI编码的介绍见WTF Solidity极简教程[第27讲 ABI编码](https://github.com/AmazingAng/WTFSolidity/blob/main/27_ABIEncode/readme.md)。
在以太坊上，智能合约的部署是一种特殊的交易：将编译智能合约得到的字节码发送到0地址。如果这个合约的构造函数有参数的话，需要利用`abi.encode`将参数编码为字节码，然后附在在合约字节码的尾部一起发送。对于ABI编码的介绍见WTF Solidity极简教程[第27讲 ABI编码](https://github.com/AmazingAng/WTF-Solidity/blob/main/27_ABIEncode/readme.md)。

## 合约工厂

Expand All @@ -55,7 +55,7 @@ await contractERC20.waitForDeployment();

## 例子：部署ERC20代币合约

`ERC20`标准代币合约的介绍见WTF Solidity极简教程[第31讲 ERC20](https://github.com/AmazingAng/WTFSolidity/blob/main/31_ERC20/readme.md)。
`ERC20`标准代币合约的介绍见WTF Solidity极简教程[第31讲 ERC20](https://github.com/AmazingAng/WTF-Solidity/blob/main/31_ERC20/readme.md)。

1. 创建`provider`和`wallet`变量。
```js
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2 changes: 1 addition & 1 deletion 07_Event/Event.js
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Expand Up @@ -7,7 +7,7 @@ import { ethers } from "ethers";
// import { ethers } from "https://cdn-cors.ethers.io/lib/ethers-5.6.9.esm.min.js";

// 利用Alchemy的rpc节点连接以太坊网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);

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提示：本教程基于ethers.js 6.3.0 ，如果你使用的是v5，可以参考[ethers.js v5文档](https://docs.ethers.io/v5/)。

这一讲，我们将介绍如何使用`ethers.js`读取智能合约释放的事件。如果你不了解`Solidity`的事件，可以阅读WTF Solidity极简教程中[第12讲：事件](https://github.com/AmazingAng/WTFSolidity/blob/main/12_Event/readme.md)。
这一讲，我们将介绍如何使用`ethers.js`读取智能合约释放的事件。如果你不了解`Solidity`的事件，可以阅读WTF Solidity极简教程中[第12讲：事件](https://github.com/AmazingAng/WTF-Solidity/blob/main/12_Event/readme.md)。

具体可参考[ethers.js文档](https://docs.ethers.org/v6/api/contract/#ContractEvent)。

Expand Down Expand Up @@ -61,7 +61,7 @@ const transferEvents = await contract.queryFilter('事件名', 起始区块, 结
```js
import { ethers } from "ethers";
// 利用Alchemy的rpc节点连接以太坊网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);
```
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2 changes: 1 addition & 1 deletion 08_ContractListener/ContractListener.js
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import { ethers } from "ethers";

// 准备 alchemy API
// 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
// 连接主网 provider
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);
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Expand Up @@ -48,12 +48,12 @@ contract.once("eventName", function)

## 监听`USDT`合约

1. 声明`provider`：Alchemy是一个免费的ETH节点提供商。需要先申请一个，后续会用到。你可以参考这篇攻略来申请Alchemy API[Solidity极简入门-工具篇4：Alchemy](https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md )
1. 声明`provider`：Alchemy是一个免费的ETH节点提供商。需要先申请一个，后续会用到。你可以参考这篇攻略来申请Alchemy API[Solidity极简入门-工具篇4：Alchemy](https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md )

```js
import { ethers } from "ethers";
// 准备 alchemy API
// 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
// 连接主网 provider
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);
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import { ethers } from "ethers";

// 利用Alchemy的rpc节点连接以太坊网络
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
// 准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);

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Expand Up @@ -15,7 +15,7 @@ tags:

**推特**：[@0xAA_Science](https://twitter.com/0xAA_Science)

**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTFSolidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)
**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTF-Solidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)

所有代码和教程开源在github: [github.com/WTFAcademy/WTFEthers](https://github.com/WTFAcademy/WTFEthers)

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**推特**：[@0xAA_Science](https://twitter.com/0xAA_Science)

**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTFSolidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)
**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTF-Solidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)

所有代码和教程开源在github: [github.com/WTFAcademy/WTFEthers](https://github.com/WTFAcademy/WTFEthers)

Expand Down Expand Up @@ -61,7 +61,7 @@ tags:
```js
import { ethers } from "ethers";

//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);

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// contract.函数名.staticCall(参数, {override})
import { ethers } from "ethers";

//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);

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import { ethers } from "ethers";

//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);

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Expand Up @@ -16,7 +16,7 @@ tags:

**推特**：[@0xAA_Science](https://twitter.com/0xAA_Science)

**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTFSolidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)
**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTF-Solidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)

所有代码和教程开源在github: [github.com/WTFAcademy/WTFEthers](https://github.com/WTFAcademy/WTFEthers)

Expand All @@ -26,7 +26,7 @@ tags:

## `ERC721`

`ERC721`是以太坊上流行的非同质化代币（NFT）标准，如果对这个标准不熟悉，可以阅读[WTF Solidity第34讲 ERC721](https://github.com/AmazingAng/WTFSolidity/blob/main/34_ERC721/readme.md)。在做NFT相关产品时，我们需要筛选出符合`ERC721`标准的合约。例如Opensea，他会自动识别`ERC721`，并爬下它的名称、代号、metadata等数据用于展示。要识别`ERC721`，我们先要理解`ERC165`。
`ERC721`是以太坊上流行的非同质化代币（NFT）标准，如果对这个标准不熟悉，可以阅读[WTF Solidity第34讲 ERC721](https://github.com/AmazingAng/WTF-Solidity/blob/main/34_ERC721/readme.md)。在做NFT相关产品时，我们需要筛选出符合`ERC721`标准的合约。例如Opensea，他会自动识别`ERC721`，并爬下它的名称、代号、metadata等数据用于展示。要识别`ERC721`，我们先要理解`ERC165`。

## `ERC165`

Expand Down Expand Up @@ -62,7 +62,7 @@ interface IERC165 {

1. 创建`provider`，连接以太坊主网。
```js
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_MAINNET_URL = 'https://eth-mainnet.g.alchemy.com/v2/oKmOQKbneVkxgHZfibs-iFhIlIAl6HDN';
const provider = new ethers.JsonRpcProvider(ALCHEMY_MAINNET_URL);
```
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2 changes: 1 addition & 1 deletion 13_EncodeCalldata/EncodeCalldata.js
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Expand Up @@ -5,7 +5,7 @@
// const interface2 = contract.interface
import { ethers } from "ethers";

//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);

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6 changes: 3 additions & 3 deletions 13_EncodeCalldata/readme.md
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Expand Up @@ -15,7 +15,7 @@ tags:

**推特**：[@0xAA_Science](https://twitter.com/0xAA_Science)

**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTFSolidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)
**WTF Academy社群：** [官网 wtf.academy](https://wtf.academy) | [WTF Solidity教程](https://github.com/AmazingAng/WTF-Solidity) | [discord](https://discord.gg/5akcruXrsk) | [微信群申请](https://docs.google.com/forms/d/e/1FAIpQLSe4KGT8Sh6sJ7hedQRuIYirOoZK_85miz3dw7vA1-YjodgJ-A/viewform?usp=sf_link)

所有代码和教程开源在github: [github.com/WTFAcademy/WTFEthers](https://github.com/WTFAcademy/WTFEthers)

Expand All @@ -25,7 +25,7 @@ tags:

## 接口类 Interface

`ethers.js`的接口类抽象了与以太坊网络上的合约交互所需的`ABI`编码和解码。`ABI`（Application Binary Interface）与`API`类似，是一格式，用于对合约可以处理的各种类型的数据进行编码，以便它们可以交互。更多内容见[WTF Solidity教程第27讲 ABI编码](https://github.com/AmazingAng/WTFSolidity/tree/main/27_ABIEncode)。
`ethers.js`的接口类抽象了与以太坊网络上的合约交互所需的`ABI`编码和解码。`ABI`（Application Binary Interface）与`API`类似，是一格式，用于对合约可以处理的各种类型的数据进行编码，以便它们可以交互。更多内容见[WTF Solidity教程第27讲 ABI编码](https://github.com/AmazingAng/WTF-Solidity/tree/main/27_ABIEncode)。

我们可以利用`abi`生成或者直接从合约中获取`interface`变量：

Expand Down Expand Up @@ -68,7 +68,7 @@ const interface2 = contract.interface
1. 创建`provider`，`wallet`变量。

```js
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-rinkeby.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);

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2 changes: 1 addition & 1 deletion 15_MultiTransfer/MultiTransfer.js
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Expand Up @@ -24,7 +24,7 @@ const amounts = Array(20).fill(ethers.parseEther("0.0001"))
console.log(`发送数额：${amounts}`)

// 3. 创建provider和wallet，发送代币用
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTFSolidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
//准备 alchemy API 可以参考https://github.com/AmazingAng/WTF-Solidity/blob/main/Topics/Tools/TOOL04_Alchemy/readme.md
const ALCHEMY_GOERLI_URL = 'https://eth-goerli.alchemyapi.io/v2/GlaeWuylnNM3uuOo-SAwJxuwTdqHaY5l';
const provider = new ethers.JsonRpcProvider(ALCHEMY_GOERLI_URL);

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