Open Sales Marketplace contracts

Overview

​ This is a simple contract who acts as a broker between sellers and buyers of NFTs, keeping track of the interest of people on buying NFTs which can be not in sale at the moment, and the interest of NFT holders on sell at some price if someone pays for it. The contract never actually holds any token, instead just expect approvals, and cancel proposal when transactions are confirmed but allowance is not enough from one of the participants.

The contract is upgradeable from openzeppelin UUPS (EIP-1822) proxy. there is a upgrade task that can be used to easily upgrade the contract.

Also the contract has good test coverage, but for production use should be tested more and of course, audited by third party always.

 

Addresses of deployed contract on mumbai network

OpenSalesManager_Proxy: 0xBB35Bc010d870558F6E559aD45b865059317aD9E
OpenSalesManager_Implementation: 0x83f57ad3047CF8a48D3Da3D9eA1B2DbaA8FFD937
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Addresses of deployed contracts on mainnet

TODO: Add mainnet smart contract addresses ​

Deployment

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Environment Setup

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1. First clone this repository to your computer.

$ git clone ...
$ cd opensales/

2. Then install the node modules.

$ npm install

3. Create .env in the folder. Fill out all info needed on those files in according to .env.example file.

MNEMONIC=[the 12 mnemonic words]
INFURA_API_KEY = [Your Infura API key]
MUMBAI_RPC_URL=[url to MUMBAI]
PRIVATE_KEY=[private key for account]

Run tests

$ npx hardhat test

Run coverage

$ npx hardhat coverage

Deploy to Local Machine

 

1. Run development server using hardhat.

$ hh node --no-deploy

​ 2. Deploy contracts.

$ hh deploy

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Deploy to Testnet (Mumbai)

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$ hh deploy --network mumbai

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Deploy to Mainnet

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$ hh deploy --network mainnet

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References

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1. Hardhat: https://hardhat.org ​