Build on Testnet

Developing Applications dApps on HeLa Chain

If you have developed dApps on Ethereum or any EVM compatible chain before, you will feel at home. It is exactly the same. But if you are new, don’t worry, this document will help you embark on your first dApp development on HeLa chain.

1. Metamask Wallet Setup If you are using Chrome Browser, Metamask extension can easily be installed from the Chrome Extension. Once it is installed it will show up at the top panel of your browser. Once it is installed, it will show up at the top panel of your browser.

2. Network Setup

   Open your Metamask > Network > Add a Network > Add a Network Manually and enter the following:

Setting	Testnet
Network name	HeLa Testnet
RPC	https://testnet-rpc.helachain.com
Chain ID	666888
SYMBOL	HLUSD
Block Explorer	https://testnet-blockexplorer.helachain.com

1. Funding Your Wallet

   To fund your wallet with transaction gas fee, go to HeLa Testnet Faucet. You will receive 10 HLUSD every 24 hours. Claim HLUSD Testnet Faucet: https://testnet-faucet.helachain.com

2. First dApp

   There are many platforms and utilities that you can use to develop dApp. Examples include: REMIX, Truffle, HardHat, Foundry etc. Visit http://remix.ethereum.org for more information. Currently, we only support 0.8.9 solidity version.

Our first program is HelloWorld.sol

In Remix IDE, you will need to compile with a compatible compiler. Remember to select Injected provider- MetaMask in the deployment tab.

1. HeLa Scan

Transaction and smart contracts can be observed and verfied in Testnet Block Explorer.

https://testnet-blockexplorer.helachain.com/