### Install Foundry

Source: https://docs.robinhood.com/chain/deploy-smart-contracts

Installs Foundry, a smart contract development toolkit for Ethereum, by downloading and running the foundryup installer script. This script handles the installation of essential tools like forge, anvil, cast, and chisel.

```bash
# Download and run the foundryup installer. Follow the prompts:
curl -L https://foundry.paradigm.xyz | bash

# Next, run foundryup to install forge, anvil, cast and chisel
foundryup
```

--------------------------------

### Create a Foundry Project

Source: https://docs.robinhood.com/chain/deploy-smart-contracts

Initializes a new Foundry project for smart contract development. This involves creating a project directory, navigating into it, and then running the `forge init` command to set up the standard project structure.

```bash
mkdir rh-deploy
cd rh-deploy
forge init
```

--------------------------------

### Create a Test Contract (Solidity)

Source: https://docs.robinhood.com/chain/deploy-smart-contracts

Defines a simple Solidity smart contract named `HelloRobinhood`. This contract includes a single function `hello` that returns a string literal. The contract is intended for testing deployment on the Robinhood Chain.

```solidity
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13; 

contract HelloRobinhood {
    function hello() external pure returns (string memory) {
        return "Hello, Robinhood Chain!";
    }
}
```

--------------------------------

### Deploy Test Contract to Robinhood Chain (Forge)

Source: https://docs.robinhood.com/chain/deploy-smart-contracts

Deploys the `HelloRobinhood` smart contract to the Robinhood Chain testnet using the Forge command-line tool. It requires setting environment variables for the private key and RPC URL, and uses the `--broadcast` flag for deployment.

```bash
# Set this to the wallet key that holds your Robinhood Chain testnet ETH.
# Never commit real private keys.
export PRIVATE_KEY=0x<your_private_key>

export RH_RPC_URL=https://rpc.testnet.chain.robinhood.com

# This command will deploy the HelloRobinhood contract and output its address
forge create HelloRobinhood \
  --rpc-url $RH_RPC_URL \
  --private-key $PRIVATE_KEY \
  --broadcast
```

--------------------------------

### Verify Test Contract on Block Explorer (Forge)

Source: https://docs.robinhood.com/chain/deploy-smart-contracts

Verifies the deployed `HelloRobinhood` smart contract on the Robinhood Chain block explorer using Forge. This command requires the contract address, source file path, contract name, chain ID, RPC URL, and the verifier details.

```bash
forge verify-contract <contract_address> \
  src/HelloRobinhood.sol:HelloRobinhood \
  --chain-id 46630 \
  --rpc-url $RH_RPC_URL \
  --verifier blockscout \
  --verifier-url https://explorer.testnet.chain.robinhood.com/api/
```

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