relayscan

relayscan

Disclaimer: This code is work-in-progress and quick'n dirty in a lot of places. Use at your own risk.

Running on https://relayscan.io

Monitoring of Ethereum mev-boost relays:

• PostgreSQL database with delivered payloads of all relays
• Ensure payments are correct (according to claim in bid)
• Call getHeader on every relay on every slot and save to DB

• License: AGPL
• Maintainer: @metachris

Overview

• Uses PostgreSQL as data store
• Relays are configured in /common/relays.go
• Some environment variables are required, see .env.example
• Saving and checking payloads is split into phases/commands:
  • data-api-backfill -- queries the data API of all relays and puts that data into the database
  • check-payload-value -- checks all new database entries for payment validity

$ go run . --help
https://github.com/flashbots/relayscan

Usage:
  relay [flags]
  relay [command]

Available Commands:
  backfill-extradata  Backfill extra_data
  check-payload-value Check payload value for delivered payloads
  collect-live-bids   On every slot, ask for live bids
  completion          Generate the autocompletion script for the specified shell
  data-api-backfill   Backfill all relays data API
  help                Help about any command
  inspect-block       Inspect a block
  version             Print the version number the relay application
  website             Start the website server

Flags:
  -h, --help   help for relay

Use "relay [command] --help" for more information about a command.

Getting started

Run

# Query relay data APIs for delivered payloads
go run . data-api-backfill

# Check new entries for valid payments
go run . check-payload-value

# Start the website (--dev reloads the template on every page load, for easier iteration)
go run . website --dev

# Start service to query every relay for bids
go run . collect-live-bids

Test & dev

# Install dependencies
go install mvdan.cc/gofumpt@latest
go install honnef.co/go/tools/cmd/staticcheck@v0.3.3
go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.49.0

# Lint, test and build
make lint
make test
make test-race
make build