adiasg / hacky-early-ffg-info Goto Github PK

Get to know about Ethereum finality faster!

Lighthouse with HTTP endpoint enabled.

Clone the repo. Venv if you want. Then pip install httpx.

• Fill in your Lighthouse HTTP endpoint in LIGHTHOUSE_API_ENDPOINT in the file monitor-unrealized-checkpoints.py.
• Then python monitor-unrealized-checkpoints.py.

The script queries the consensus client every 6 seconds, and outputs in the terminal like this:

Explanation of output:

• The first 2 lines give information about current time, slot, slot in epoch, epoch etc.
• The next 2 lines provide information about realized (R) and unrealized (U) checkpoints. Unrealized checkpoints are expected to lead the realized ones by 1 epoch in the 22nd slot of every epoch.
• The next 3 JSON objects are:
  • Current FFG checkpoints
  • Lowest block that contains the unrealized justified checkpoint
  • Lowest block that contains the unrealized finalized checkpoint

Enjoy!