Agoric <=> EVM

This updates the axelar-local-dev repository to use agoric chain instead of wasm chain in agoric-local-dev-cosmos package.

This repository does not demonstrate a token trasnfer to eth but rather a message transfer

Steps to run contract call

• In root of the workspace run:

    npm install
    npm run build

• Change to axelar-local-dev-cosmos dir

    cd packages/axelar-local-dev-cosmos

• start the agoric and axelar chains using:

    npm run start

• start the relaying process using

    npm run relay

Note: you can also run testFactory or testWallet instead of relay

• you should see this in the logs:

Message on Ethereum Contract: [
  'agoric1estsewt6jqsx77pwcxkn5ah0jqgu8rhgflwfdl',
  'Hello, world!',
  sender: 'agoric1estsewt6jqsx77pwcxkn5ah0jqgu8rhgflwfdl',
  message: 'Hello, world!'
]

Steps to run contract call with token transfer

• In root of the workspace run:

    npm install
    npm run build

• Change to axelar-local-dev-cosmos dir

    cd packages/axelar-local-dev-cosmos

• start the agoric and axelar chains using:

    npm run start

• run the script to start an ibc-transfer

    bash ./docker/axelar/bin/steps/ibc-transfer.sh

• run this script to relay the ibc trasnsaction.

    npm run relayWithTokens

• After that run again to relay the token transfer

    npm run relayWithTokens

• you should see this in the logs:

Balance of account after relaying ...

Note: the npm run relay command will not exit by itself after receiving the message on ethereum and must be manually exited)

Main file

The main file to look out for is the packages/axelar-local-dev-cosmos/src/relayToEth.ts in which the majority of the work is being done.

This file is responsible for

• starting up an ethereum chain instance
• adding a solidity contract to that instance (which receives the message from cosmos)
• setting up a relayer between axelar and ethereum + axelar and agoric
• sending an IBC transaction from agoric to axelar
• finally, relaying the packets from agoric <=> axelar <=> ethereum