Proveably random Raffle contract

About

this is the code to create proveably random smart contract lottery

What we want it to do

1. User can enter by paying for a ticket
   1. the ticket fee are going to go to the winner during the withdraw
2. After X period of time, lottery will automatically draw a winner
   1. This will be done progamatically
3. Using Chainlink VRF and chainlink Automation
   1. Chainlink VRF--> randomness
   2. Chainlink Automation--> time-based trigger

Tests

1. Write the deployment Scripts
2. Write Our test
   1. Works on local chain
   2. Forked testnet
   3. forked mainnet

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.

Foundry consists of:

• Forge: Ethereum testing framework (like Truffle, Hardhat and DappTools).
• Cast: Swiss army knife for interacting with EVM smart contracts, sending transactions and getting chain data.
• Anvil: Local Ethereum node, akin to Ganache, Hardhat Network.
• Chisel: Fast, utilitarian, and verbose solidity REPL.

Documentation

https://book.getfoundry.sh/

Usage

Build

$ forge build

Test

$ forge test

Format

$ forge fmt

Gas Snapshots

$ forge snapshot

Anvil

$ anvil

Deploy

$ forge script script/Counter.s.sol:CounterScript --rpc-url <your_rpc_url> --private-key <your_private_key>

Cast

$ cast <subcommand>

Help

$ forge --help
$ anvil --help
$ cast --help