Harmony Protocol HRC-721 Token Standard

This example will help you deploy an HRC-721 (ERC-721 compatible) token on Harmony Protocol.

Getting Started

1. Install packages npm install
2. (OPTIONAL) Set up your harmony localnet
3. Run ./deploy.sh <target_network> to deploy the contracts, where <target_network> can be:
   • local: for a local running instance of the Harmony blockchain
   • testnet: for our current long running testnet (current URL: https://api.s0.b.hmny.io/)
   • mainnet0: for our Mainnet (current URL: https://api.s0.t.hmny.io/)
4. In the .env file located in the same directory as this Readme, set ENV=<target_network> where <target_network> is the network you deployed the smart contract to.
5. Use npm start to run the dapp

Note: restarting the dapp IS necessary after re-deploying the contracts

Making Changes

If you want to point the dapp to a contract that is already deployed on testnet or mainnet, modify the following entries in the .env file:

//HRC721 Contract Addresses
TESTNET_HRC721CROWDSALE='<testnet_HRC721Crowdsale_address>'
TESTNET_HARMONYMINTABLE='<testnet_HRC721_address>'
TESTNET_MIGRATIONS='<testnet_Migrations_address>'

//MAINNET
MAINNET_HRC721CROWDSALE='<mainnet_HRC721Crowdsale_address>'
MAINNET_HARMONYMINTABLE='<mainnet_HRC721_address>'
MAINNET_MIGRATIONS='<mainnet_Migrations_address>'

Replace the address fields with the hexadecimal address pointing to the contract on your network of choice.

Other Notes

Contract transactions not confirming and sending error from validators.js

Add

if (!blockNumber) {
    blockNumber = '0x0'
}

To line 232 of your node_modules/@harmony-js/transaction/dist/transactionBase.js