https://github.com/ralexstokes/beacon-light-client

beacon chain light client in Rust
https://github.com/ralexstokes/beacon-light-client

Last synced: 20 days ago
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beacon chain light client in Rust

• Host: GitHub
• URL: https://github.com/ralexstokes/beacon-light-client
• Owner: ralexstokes
• Created: 2021-11-13T16:44:46.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2021-11-11T19:05:14.000Z (about 3 years ago)
• Last Synced: 2024-10-06T16:41:24.194Z (about 1 month ago)
• Size: 1.81 MB
• Stars: 0
• Watchers: 1
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Lighthouse Light Client

*** This light client is still in very early development ***

It aims to be a functional prototype, but is curently way off even that!

The initial aim of this repository is to build a prototype Beacon Chain light client in Rust following the following specs: https://github.com/ethereum/annotated-spec/blob/master/altair/sync-protocol.md#minimal-light-client

## Design

To begin with the light client will follow a server/client model. The relevant information required for a light client is available by http requests to an active Beacon node. A light client server will make those requests and assemble them into light client update objects, which will then be served to the light client itself.

## Instructions

First spin up a local testnet using Ganache as the execution layer

Then cargo run in the light-client directory

## Current Functionality

The light client randomly selects a beacon node to connect to. The server then creates an initial store object by parsing data from the `beacon_block_body` and `beacon_state` objects associated with the most recent finalized block requested from the Beacon Node. Then, the same process is then repeated for the head of the chain, with new data used to update `store`.

## Dev Notes

For light-client dev make sure the testnet BN's are running altair. The defaults in vars.env set the altair hard fork to block 18million-ish. Set it to 0, then the altair endpoints will be available immediately.

## finality_branch and sync_committee_branch

see SSZ_notes.md