Ethereum Transaction Parser

Overview

This project is a lightweight Ethereum blockchain transaction parser that allows users to:

• Retrieve the current Ethereum block number
• Subscribe to specific Ethereum addresses
• Fetch transactions for subscribed addresses

Project Structure

|-Trustwallet.postman_collection.json
|-main.go
|-README.md
|-go.mod
|-parser
| |-types.go
| |-ethereum
| | |-ethereum_parser_test.go
| | |-ethereum_parser.go
| |-parser.go
|-main_test.go

Installation

1. Clone the repository

git clone https://github.com/yourusername/trustwallet.git
cd trustwallet

2. Install dependencies

go mod tidy

3. Run the application

go run main.go

API Endpoints

1. Get Current Block

• Endpoint: /current_block
• Method: GET
• Description: Retrieves the latest Ethereum block number
• Response:

  {
    "current_block": 12345678
  }

2. Subscribe to Address

• Endpoint: /subscribe
• Method: POST
• Description: Add an Ethereum address to the observer list
• Request Body:

  {
    "address": "0x46340b20830761efd32832a74d7169b29feb9758"
  }

• Response:

  {
    "message": "Address subscribed successfully"
  }

3. Get Transactions

• Endpoint: /transactions
• Method: GET
• Description: Fetch transactions for a subscribed address
• Query Parameter: address
• Response:

  {
    "transactions": [
      {
        "from": "0x...",
        "to": "0x...",
        "value": "..."
      }
    ]
  }

Configuration

• RPC Endpoint: Configured in ethereum_parser.go
  • Currently using: https://ethereum-rpc.publicnode.com

Testing

Run tests using:

go test ./...

Postman Collection

A Postman collection is included (Trustwallet.postman_collection.json) for easy API testing and documentation.

Performance Considerations

• Implement connection pooling for RPC requests
• Add caching mechanisms
• Consider rate limiting and error handling for RPC interactions