Feature: NFT Dutch Auction

[julio4]

Description

In this example, we will show the implementation of an NFT minting contract using a Dutch Auction, where the minting price follows a decreasing price curve.

Minting Details

• The seller of the NFT deploys this contract with a startingPrice.
• The auction lasts for a specified duration.
• The price decreases over time.
• Participants can purchase NFTs at any time as long as the totalSupply has not been reached.
• The auction ends when either the totalSupply is reached or the duration has elapsed.

Criteria:

• Price is denominated in IERC20 priceToken
• Include comprehensive tests
• Deploy the contract on a testnet

Resources:

• Solidity By Example - Dutch Auction

ODHack

To be eligible for additional rewards, be sure to review and follow the ODHack Common Guidelines and Contributing Guidelines.
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[princeibs]

Can I hop on this?

[muheebyusufbaba1]

I'll like to work on this

[princeibs]

Kindly drop link to the StarknetByExample telegram group please.
@julio4

[saimeunt]

Hi @julio4, I'm a returning contributor from previous ODHacks (check my OD profile here) and I'd love to handle this issue.

In particular, I have experience porting Solidity code to Cairo as I did in Solidity EIPs to Cairo conversions such as ERC7496 and ERC7498.
I will study the Solidity by Example code and carefully replicate it using Cairo and OpenZeppelin ERC20/ERC721 implementations.
I will replace the Solidity price logic using msg.value with proper Starknet logic using an ERC20 as price token and transfer_from method.
I will include starknet-foundry to write comprehensive tests making sure we have 100% coverage for this example and deploy on Starknet Sepolia.

[julio4]

Hello everyone! I assigned @princeibs for this time!

[saimeunt]

@princeibs Are you still working on this?
@julio4 Following up on my TimeLock implementation in #201 I'd like to continue working on StarknetByExample and handle this issue (please refer to my previous comment).

[princeibs]

Yeah sure. Almost done.
Will be creating a PR asap.

[julio4]

Yeah sure. Almost done. Will be creating a PR asap.

Thank you, please open a draft PR as soon as possible!