Lottery project

For me to follow the lottery project in the Udemy's "Ethereum and Solidity: The Complete Developer's Guide". However, the course is using an old Solidity version of 0.4.17 and current is now 0.8.x. I have mapped it over to the newer Solidity 0.8.x.

Unit Test

Take note of the test\Lottery.test.js, which is important to test the smart contract before deploying. Test run it using npm run test

Deployment

The contract is to be deployed to the Rinkeby network via Infura API. Some pre-requsite requirements:

1. Sign up for an account in http://infura.io/ and create an Ethereum project.
2. Fill in the Rinkeby endpoint and your wallet mnemonic in deploy.js.
3. Deployment will require some gas in the wallet. Proceed to request for some test Ether.
4. Run node deploy.js to deploy.

Frontend App

The frontend app is developed at another repo named "samuelyee/lottery-react"