Offchain Approval with ERC20 Permit and Ethers.js

Example of how to use ERC20 permit to sign approval offchain so that you don't have to send 2 transactions (approve and transferFrom).

0:00 - Intro 0:26 - ERC20 permit 3:07 - Test script 4:13 - Write ERC20 token contract 5:44 - Back to writing test 7:05 - What message to sign for permit? 9:04 - Finish up the test script 9:48 - Execute test

https://github.com/t4sk/hello-erc20-permit

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