教程

contract.initFlash -> pool.flash -> uniswapV3FlashCallback -> swapOnUniswap/swapOnKyber -> payback

闪存交换示例

闪存交换示例

安装和设置

1.如果您还没有安装Node.js和yarn 。

2. 克隆这个仓库

运行以下命令。

git 克隆 https://github.com/yuichiroaoki/flash-swap-example.git

快速开始

现在这个 repo 只适用于安全帽主网分叉。

1.设置环境变量

您需要一个 ALCHEMY_MAINNET_RPC_URL 环境变量。您可以从Alchemy 网站免费获得一个。

然后，您可以使用以下内容创建一个 .env 文件。

ALCHEMY_MAINNET_RPC_URL='<your-own-alchemy-mainnet-rpc-url>'

2.安装依赖

运行以下命令。

yarn install纱线安装

3. 编译智能合约

运行以下命令。

yarn compile纱线编译

4. 执行闪存交换🔥

运行以下命令。

yarn flashswaps纱线闪换

预期产出

$ yarn flashswaps
yarn run v1.22.5
$ npx hardhat run scripts/flashswaps.ts
No need to generate any newer typings.
deployer's initial balance 0
deployer's ending balance 4.860772792026915
Congrats! You earned 4.860772792026915 DAI !!
Done in 40.72s.

参考

对闪

Uniswap 官方文档中的示例闪兑合约。

文档/ GitHub /测

Example of Flash Swaps

Installation and Setup

1. Install Node.js & yarn, if you haven't already.

2. Clone This Repo

Run the following command.

git clone https://github.com/yuichiroaoki/flash-swap-example.git

Quickstart

Right now this repo only works with hardhat mainnet fork.

1. Setup Environment Variables

You'll need an ALCHEMY_MAINNET_RPC_URL environment variable. You can get one from Alchemy website for free.

Then, you can create a .env file with the following.

ALCHEMY_MAINNET_RPC_URL='<your-own-alchemy-mainnet-rpc-url>'

2. Install Dependencies

Run the following command.

yarn install

3. Compile Smart Contracts

Run the following command.

yarn compile

4. Execute Flash Swaps 🔥

Run the following command.

yarn flashswaps

Expected Outputs

$ yarn flashswaps
yarn run v1.22.5
$ npx hardhat run scripts/flashswaps.ts
No need to generate any newer typings.
deployer's initial balance 0
deployer's ending balance 4.860772792026915
Congrats! You earned 4.860772792026915 DAI !!
Done in 40.72s.

References

PairFlash

A sample flash swap contract from Uniswap official docs.

Docs / GitHub / Test