Ethereum: Receive money in regtest mode

Ethereum: Receiving Money in Regression Test (Regtest) Mode

As you develop your application that interacts with the Bitcoin server to retrieve transaction details by Transaction ID, it’s essential to consider using Ethereum for additional functionality. One such use case is receiving money through a Regtest mode, which allows you to test and validate your application without exposing your mainnet wallet. Here’s an article on how to receive funds in Regtest mode on the Ethereum network.

What is Regression Test (Regtest) Mode?

Regression test (Regtest) mode simulates a transaction with the same Transaction ID as the one used to create it in mainnet, but without actually sending or receiving any funds. This helps you verify that your code behaves correctly and doesn’t introduce bugs that might appear after deployment.

Setting up Ethereum for Regtest Mode

Before proceeding, ensure you have Node.js, Geth (the Go Ethereum client), and Truffle Suite installed on your machine.

Prerequisites

• Install the required packages:

– npm install @truffle/core or yarn add truffle-core

– npm install @truffle/compile or yarn add compile

• Create a new project with npx truffle init

• Configure your mainnet and Regtest networks in the .env file.

Configuring Your Ethereum Network

You will need to update your network configuration in config/contract.json. Ensure you have the following setup:

{

  "network": {

    "mainnet": true,

    "regtest": false,

    "rpc": "

    "eth1": {

      "rpc": "

    },

  }

}

Replace YOUR_PROJECT_ID with your actual Infura project ID.

Creating a Contract for Recieving Funds

Create a new file called src/contract/Recipient.sol. Here’s an example contract:

pragma solidity ^0.8.0;


import "

import "


contract Recipient {

    using SafeERC20 for (ERC20.IERC20);


    ERC20 public payable;


    constructor(address _payable) {

        payable = ERC20(_payable);

    }


    function receive() public payable returns (bool) {

        return true;

    }

}

Testing the Contract with Regtest

To test your contract without actually sending or receiving funds, you can use a combination of commands:

• Start the Geth node:

go run --node=127.0.0.1:8545 ./src/contract/Recipient --regtest

• Compile and deploy your smart contract to the Ethereum network.

• Use Truffle’s compile command to compile and update the contract in your local Regtest environment.

For example:

npx truffle compile

truffle migrate --network=regtest

Receiving Funds through Regtest Mode

Once you’ve successfully deployed and updated your smart contract, you can test receiving funds through Regtest mode. Here’s how:

• Start the Geth node with the --regtest flag:

go run --node=127.0.0.1:8545 ./src/contract/Recipient --regtest

• Create a new transaction that calls your contract and sends funds:

“`solidity

pragma solidity ^0.8.0;

import “

import “

contract Recipient {

using SafeERC20 for (ERC20.IERC20);

ERC20 public payable;

constructor(address _payable) {

payable = ERC20(_payable);

}

function receive() public payable returns (bool) {

return true;

}

}

pragma solidity ^0.8.0;

import “

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