Deploy a Contract with Foundry

forge init stablenet-demo
cd stablenet-demo

[profile.default]
src = "src"
out = "out"
libs = ["lib"]

[rpc_endpoints]
stablenet_testnet = "https://api.test.stablenet.network"

rm src/Counter.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface IERC20 {
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
}

/// @title WKRCPayment
/// @notice Accepts WKRC payments from an approved sender.
contract WKRCPayment {
    /// @dev NativeCoinAdapter (WKRC) — fixed system contract address on StableNet.
    IERC20 public constant WKRC =
        IERC20(0x0000000000000000000000000000000000001000);

    event Payment(address indexed from, address indexed to, uint256 amount);

    /// @notice Pull `amount` of WKRC from msg.sender and forward it to `to`.
    ///         Requires prior WKRC.approve(address(this), amount).
    function pay(address to, uint256 amount) external {
        require(WKRC.transferFrom(msg.sender, to, amount), "WKRC transfer failed");
        emit Payment(msg.sender, to, amount);
    }

    function allowanceOf(address owner) external view returns (uint256) {
        return WKRC.allowance(owner, address(this));
    }
}

forge build

[⠒] Compiling...
Compiler run successful!

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {Script, console} from "forge-std/Script.sol";
import {WKRCPayment} from "../src/WKRCPayment.sol";

contract DeployWKRCPayment is Script {
    function run() external {
        vm.startBroadcast();
        WKRCPayment payment = new WKRCPayment();
        console.log("WKRCPayment deployed at:", address(payment));
        vm.stopBroadcast();
    }
}

export PRIVATE_KEY=0xYourPrivateKey

forge script script/DeployWKRCPayment.s.sol \
  --rpc-url https://api.test.stablenet.network \
  --private-key $PRIVATE_KEY \
  --priority-gas-price 27600000000000 \
  --broadcast

Script ran successfully.

== Logs ==
WKRCPayment deployed at: 0xABC...

Chain 8283

✅ Hash: 0xDEF...
Contract Address: 0xABC...
Block: NNNN

export CONTRACT=0xABC...
export RECIPIENT=0xRecipientAddress
export AMOUNT=1000000000000000000
export WKRC=0x0000000000000000000000000000000000001000

# Approve the contract to spend 1 WKRC
cast send $WKRC \
  "approve(address,uint256)" $CONTRACT $AMOUNT \
  --rpc-url https://api.test.stablenet.network \
  --private-key $PRIVATE_KEY \
  --priority-gas-price 27600000000000

# Call pay() to transfer to the recipient
cast send $CONTRACT \
  "pay(address,uint256)" $RECIPIENT $AMOUNT \
  --rpc-url https://api.test.stablenet.network \
  --private-key $PRIVATE_KEY \
  --priority-gas-price 27600000000000

cast call $CONTRACT \
  "allowanceOf(address)(uint256)" $RECIPIENT \
  --rpc-url https://api.test.stablenet.network

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