GoChain CLI

GoChain CLI is a basic blockchain implementation in Go. This application allows interactions with the Ethereum network, including wallet generation, transaction creation, and checking balances and network data.

Installation

1. Clone the repository:

   git clone https://github.com/your-username/cli-gochain.git
   cd cli-gochain

2. Install dependencies:

   go mod tidy

3. Build the application:

   go build -o gochain

Usage

Available commands:

• generate-wallet: Generates a new Ethereum wallet and saves it in memory.

  ./gochain generate-wallet

  Output:

  PublicKey: 0x123...abc
  PrivateKey: 0xdef...456
  

• get-wallets-inmemory: Displays all Ethereum wallets currently stored in memory.

  ./gochain get-wallets-inmemory

  Output:

  Ethereum wallets in memory: [0x123...abc, 0xdef...456]
  

• set-network-node <network> <nodeUrl>: Sets the network node for the Ethereum client.

  ./gochain set-network-node mainnet https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID

  Output:

  Network mainnet successfully added
  

• get-blocknumber <network>: Gets the current block number of a specified network.

  ./gochain get-blocknumber mainnet

  Output:

  Current blockNumber: 13245678
  

• create-transaction <network> <from> <to> <amount>: Creates an Ethereum transaction.

  ./gochain create-transaction mainnet 0x123...abc 0x456...def 1000000000000000000

  Output:

  Transaction created successfully with hash: 0xabc123...789
  

  Note: The from address must be one of the addresses generated by the generate-wallet command.
• get-balance <network> <address>: Retrieves the balance of an Ethereum address.

  ./gochain get-balance mainnet 0x123...abc

  Output:

  Balance: 1.234567890123456789 ETH
  

• get-transaction-receipt <network> <txHash>: Gets the receipt of a specific transaction.

  ./gochain get-transaction-receipt mainnet 0xabc123...789

  Output:

  Transaction receipt: {Status: 1, BlockNumber: 13245678, GasUsed: 21000, ...}
  

Code structure

• main.go: The main file that defines the CLI using cobra.Command.
• database/memory.go: Responsible for in-memory storage of data such as wallets and network settings.
• evm: Module that interacts directly with the Ethereum Virtual Machine (EVM), including wallet creation, transactions, and network data retrieval.

Dependencies

• Cobra: A library for creating beautiful command-line interfaces in Go.
• Go-Ethereum: A Go implementation of the Ethereum protocol.

License

This project is licensed under the MIT License.