go-ethutils

README

Go Ethereum Utilities

Helpers for working with Ethereum:

Links

• Go Docs: https://pkg.go.dev/github.com/metachris/go-ethutils
• Example usage: https://github.com/metachris/flashbots

Contents

• utils/getblocks.go - fast block ingress pipeline
• blockswithtx - fast, concurrent block+receipts downloading pipeline (use a geth IPC connection)
• smartcontracts - detect types of smart contracts, get contract details (eg. erc20, 721 properties, etc.)
• addresslookup - get information of an address, either from JSON or from the blockchain
• addressdetail - helper for smart contracts and addresses
• utils/eth.go - finding first block at or after a certain UTC timestamp
• utils/blockrangefinder.go - find a block range based on date, timespans or blocks
• utils/various.go - various utilities

Feedback

• Reach out to twitter.com/metachris

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BlockWithTxReceipts

blockswithtx is used for concurrently fetching blocks and tx-receipts from a geth node.

Benchmarks - running on the same machine as the geth node:

# IPC connection with concurrency 1, 5, 10, 15
ipc+1x:  Processed 17773 transactions in 29.671 seconds (599.01 tx/sec)
ipc+5x:  Processed 17773 transactions in 7.453 seconds (2384.59 tx/sec)
ipc+10x: Processed 17773 transactions in 5.403 seconds (3289.71 tx/sec)
ipc+15x: Processed 17773 transactions in 4.631 seconds (3837.83 tx/sec)

# WebSocket connection with concurrency 1, 5, 10, 15
ws+1x:  Processed 17773 transactions in 29.784 seconds (596.74 tx/sec)
ws+5x:  Processed 17773 transactions in 8.380 seconds (2120.87 tx/sec)
ws+10x: Processed 17773 transactions in 5.763 seconds (3084.00 tx/sec)
ws+15x: Processed 17773 transactions in 4.842 seconds (3670.32 tx/sec)

# HTTP connection with concurrency 1, 5, 10, 15
http+1x:  Processed 17773 transactions in 33.829 seconds (525.39 tx/sec)
http+5x:  Processed 17773 transactions in 8.828 seconds (2013.30 tx/sec)
http+10x: Processed 17773 transactions in 5.814 seconds (3056.90 tx/sec)
http+15x: Processed 17773 transactions in 5.510 seconds (3225.56 tx/sec)

Over the network I could only get ~200 tx/sec.

Example code: cmd/benchmark-blockswithtx/main.go