✨Tutorial: How to Use Permit2 with the Uniswap Universal Router | HackerNoon✨

[Elnaril]

In this Python tutorial, you'll learn how to use the Permit2 contract with the Uniswap Universal Router, through its function PERMIT2_PERMIT. The point is to be able to give a Permit allowance to swap/sell ERC-20 tokens.

Tutorial link

The full tutorial code is here.

[cryptofandorin]

Very interesting

[snarflakes]

I am unclear about what type of token approvals are assumed have been done to successfully use the encoder for uniswap v3 or v4 pool swaps. Is it permit2 only? thanks!

[Elnaril]

@snarflakes , for V3 you can find examples in the integrations tests in addition to the tutorial. For V4, I'll add some integrations tests after the first stable release.