A lightweight backend service for interacting with Ethereum networks using Go and go-ethereum.

This project demonstrates a structured approach to building backend services that handle blockchain interactions, including transaction execution, contract deployment, and on-chain data querying.

This project focuses on building a minimal yet practical abstraction layer over Ethereum RPC using Go.

It provides reusable patterns for:

• Blockchain data querying
• Transaction construction and submission
• Smart contract deployment and interaction
• Go contract bindings via abigen

• Query block data from Ethereum network
• Send ETH transactions programmatically
• Deploy smart contracts via Go
• Generate and use contract bindings (abigen)
• Interact with smart contracts (read/write methods)

Encapsulated common Ethereum operations using go-ethereum:

• ethclient connection management
• transaction signing and submission
• contract call abstraction

• Used abigen to generate Go bindings from Solidity contracts
• Enabled type-safe contract interaction in Go

Demonstrates the full lifecycle:

• Write Solidity contract
• Compile (ABI / BIN)
• Generate bindings
• Deploy contract
• Interact via backend service

cmd/            # application entry point
internal/       # core logic (client, services)
contracts/      # Solidity contracts

• Go
• go-ethereum (ethclient)
• Solidity
• Sepolia Testnet

• Backend service interacting with Ethereum
• Automated transaction execution
• Contract deployment scripts
• Blockchain data ingestion

• Practical use of go-ethereum in backend services
• Clean separation between blockchain logic and application layer
• End-to-end contract interaction workflow
• Foundation for building Web3 backend services

M.X Du

Smart Contract Engineer (EVM)