PoC of IBC call from different chain to EVMOS

[taijusanagi]

This is fundamental in my app, so doing this PoC first.

[taijusanagi]

Getting faucet token in cosmos15jr8xdvt5u7ddj6xsjl0s2d6ta5n0lvyhllw9d for theta https://explorer.theta-testnet.polypore.xyz/transactions/FB9240C29BE3FAF9E3E4BB897C3B6DCF029D7E294C29AE0A4C785CF000B4000C

[taijusanagi]

done with the simple cosmos transfer https://github.com/HackerSamuraiDAO/2022-EVMOS-Momentum-Hackathon/blob/b83f1b5a06f4b20800c095b846cd5bfa5bb9a61a/packages/contracts/poc/cosmosjs/signer.ts

[taijusanagi]

Now trying to send token from cosmos to evmos in testnet.

[taijusanagi]

I think building a relayer is out of scope (even though there are many documents explaining this). I'll find the way using the testnet existing relayer.

[taijusanagi]

There is a relayer between cosmos and evmos, I'll try to use this.

https://testnet.mintscan.io/evmos-testnet/relayers

[taijusanagi]

Difficult to find how to call relayer, so try to use the local go relayer in quick time first. https://github.com/cosmos/relayer

[taijusanagi]

This is tutorial for running go-relayer https://tutorials.cosmos.network/academy/4-ibc/go-relayer.html

[taijusanagi]

Added evmos evm tx and detect in cosmos way

https://github.com/HackerSamuraiDAO/2022-EVMOS-Momentum-Hackathon/blob/bd40daadb0f6b653bbf1189dc45a5f687b379027/packages/contracts/poc/cosmosjs/signer.ts

[taijusanagi]

This repo looks nice reference to do cross-chain call https://github.com/HackerSamuraiDAO/ibc-ts-relayer-example

[taijusanagi]

I cannot make connection between theta and osmosis... https://github.com/confio/ts-relayer/issues/221

[taijusanagi]

I'm not building relayer, try to send call from cosmos hub to evmos

[taijusanagi]

I think this should be

• call from otherchain
• call from eth way

[taijusanagi]

so change the way, we will use EVM -> EVMOS call by IBC