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vea-lightbulb-tutorial's Introduction

Vea Lightbulb Tutorial

lightbulb is a simple demo of Vea's cross-chain message passing system. Specifically passing messages between:

  • Arbitrum Goerli -> Goerli
  • Arbitrum Goerli -> Chiado

It deploys 2 contracts for each chain pair - one to the destination chain (Goerli/Chiado), and another to the sending chain (Arbitrum Goerli), and has the sending contract contract send a message to the receiving contract to be executed automatically.

The script and contracts demonstrate how to interact with Vea's bridge contracts to create cross-chain messages, and how to calculate proofs to relay messages.

Click here for more info on cross-chain messaging with Vea.

Run Deploy Contracts:

yarn lightbulb

Config Environment Variables

Set the values shown in .env-sample as environmental variables. To copy it into a .env file:

cp .env-sample .env

(you'll still need to edit some variables, i.e., PRIVKEY)

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