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Fund Me Smart Contract

The Smart Contract (backend) for a fund me blockchain application.

Environment Variables

These are the environment variables you need to set in your .env file in order to have the scripts work correctly.

MUMBAI_RPC_URL= <youRPCUrl>
POLYGON_MAIN_RPC_URL= <yourRPCUrl>
# This is MetaMask Dev private key Account Dev Only Never use this for real money transactions!
PRIVATE_KEY=<yourDevPrivateKey>
ETHERSCAN_API_KEY=<yourEtherscanApiKey>

Foundry

This project is built with Foundry

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