Devcon Ticket Sale System

Running Hardhat node

Change directory to packages/contracts and execute:

yarn node:run

This will start a Hardhat node, deploy the contracts and place initial bids using the first twenty auto-generated accounts.

Custom tasks

A number of custom Hardhat tasks were defined to aid testing.

Managing local node

• yarn node:increase-time [--value <INT>] - increase block time by value seconds, defaults to six hour
• yarn node:accounts - print a list of available accounts

Interacting with AuctionRaffle contract

Hardhat

• yarn hardhat:bid --account <STRING> --amount <STRING> - using account place bid of amount ETH
• yarn hardhat:bid-random --amount <INT> [--account <INT>] - using randomly generated accounts place amount of bids using funds from account with index account (defaults to 0)
• yarn hardhat:settle-auction - settle auction
• yarn hardhat:settle-raffle - settle raffle using random numbers
• yarn hardhat:settle - increase time, settle auction and raffle

Arbitrum Rinkeby

• yarn rinkeby:generate-dotenv [--path <STRING>] [--count <INT>] - generate .env file needed for other tasks, path - output path, count - number of private keys to generate
• yarn rinkeby:transfer-ether - transfer ether from DEPLOYER to PRIVATE_KEYS accounts
• yarn rinkeby:init-bids - place initial bids using PRIVATE_KEYS accounts

Ethereum Mainnet

• yarn ethereum:generate-random-numbers --blocks <ARRAY> --secret <STRING> - generate random numbers for raffle settlement, blocks - array of block numbers from which extract block hash (e.g. "[1234, 5678]"), secret - secret number represented as 32 bytes hex string