https://github.com/almostfancy/true-dutch

True Dutch Auction solidity smart contract
https://github.com/almostfancy/true-dutch

ethereum foundry smart-contracts solidity solmate

Last synced: about 23 hours ago
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True Dutch Auction solidity smart contract

• Host: GitHub
• URL: https://github.com/almostfancy/true-dutch
• Owner: AlmostFancy
• License: isc
• Created: 2022-05-16T16:57:36.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2023-04-17T14:43:03.000Z (over 1 year ago)
• Last Synced: 2024-11-18T15:47:42.807Z (1 day ago)
• Topics: ethereum, foundry, smart-contracts, solidity, solmate
• Language: Solidity
• Homepage:
• Size: 343 KB
• Stars: 23
• Watchers: 3
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
[![License: ISC](https://img.shields.io/badge/License-ISC-blue.svg)](https://github.com/AlmostFancy/true-dutch/blob/master/LICENSE.txt)

[![NPM](https://img.shields.io/npm/v/@almost-fancy/true-dutch)](https://www.npmjs.com/package/@almost-fancy/true-dutch)

## Installation

Forge:

```sh

forge install almostfancy/true-dutch

```

Hardhat or Truffle:

```sh

npm install -D @almost-fancy/true-dutch

```

## Usage

To get started, you can use the library as follows:

```solidity

pragma solidity ^0.8.4;

import { TrueDutchAuction } from "@almost-fancy/true-dutch/src/TrueDutchAuction.sol";

contract AlmostFancy is TrueDutchAuction, ERC721A {

  constructor(address payable _beneficiary)

    ERC721A("AlmostFancy", "AF")

    TrueDutchAuction(

      DutchAuctionConfig({

        saleStartTime: dutchSaleTime,

        startPriceWei: 0.99 ether,

        endPriceWei: 0.09 ether,

        duration: 9 hours,

        dropInterval: 15 minutes,

        maxBidsPerAddress: 0,

        available: 1111,

        maxPerTx: 3

      }),

      _beneficiary

    )

  {}

  function placeBid(uint256 quantity) external payable {

    _placeAuctionBid(msg.sender, quantity);

  }

  function _handleBidPlaced(

    address whom,

    uint256 quantity,

    uint256 priceToPay

  ) internal override {

    uint256 cost = priceToPay * quantity;

    _safeMint(whom, quantity); // call ERC721A#_safeMint to actually get the asset to the caller

  }

}

```

## License

Distributed under the ISC License. See `LICENSE.txt` for more information.