tx-parser

This is a simple Ethereum transaction parser that can be used to extract information from Ethereum transactions.

Installation

go build -o tx-parser main.go

Running

./tx-parser -config=config.json

Usage

There are 3 provided APIs:

• POST /api/v1/address - Subscribe to an address
• GET /api/v1/transactions - Get all transactions for an address since subscription
• GET /api/v1/transactions/current_block - Get the current parsed block number

Configuration

The configuration file is a JSON file that contains the following fields as shown below:

{
  "rpc_url": "https://cloudflare-eth.com",
  "port": 8080, // HTTP Port
  "buffer_size": 1000, // Maximum number of transactions can be stored by the parser
  "ticker_period": 10, // Time in seconds to check for new blocks
  "start_block": 19552784 // Block number to start parsing from
}

Example:

Refer to TxParser.postman_collection.json for an example of how to use the APIs.

TODO:

• Add retry mechanism for RPC calls
• Use a proper database to store transactions. My recommendation would be to use a time-series database like ClickHouse.