Send Message from L2 to L1 | Optimism

How to call smart contracts on L1 ETH from L2 Optimism

0:00 Intro 0:35 Steps 2:10 Send L2 transaction 2:34 Node script 5:14 Run node script 6:28 Check L1 contract 6:53 Summary

Code https://github.com/t4sk/notes/tree/main/op

Doc https://docs.optimism.io/

OP Sepolia network setup https://chainid.link/?network=op-sepolia

Sepolia ETH faucet https://sepoliafaucet.com/

OP Sepolia ETH faucet https://app.optimism.io/faucet

Remix IDE https://remix.ethereum.org/

Take a course https://www.smartcontract.engineer/

#Solidity #SmartContract #Ethereum #スマートコントラクト

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