AAVE Shortcuts

The goal of this dApp is to improve UX of AAVE for non-crypto users (users without crypto wallet like MetaMask).

First, users login using their email. Based on the email the app will generate a new Smart Contract Account (SCA) address for them.

Users are asked to deposit a crypto asset (LINK, ETH,...) to this fresh SCA address using a fiat-onramp service.

Once the SCA address is funded, the bytecode of SCA account itself can be deployed. The asset that was deposited is used as a collateral to borrow GHO.

All this can be done with a very simple UX. Account Abstraction supports. transaction batching, thus all of the following can be done in a single click:

1. Approve that AAVE can spend user's LINK.
2. Deposit LINK to AAVE
3. Borrow GHO on AAVE

Also the user doesn't need MetaMask or any ETH. He can sign transactions using his Email-generated account and the (e.g. first) transaction can be sponsored by a Paymaster.

Email login/wallet - Magic Account Abstraction SDK - Alchemy Paymaster - Alchemy Smart contract interaction - Viem, Wagmi, Alchemy Frontend/Bakcend - React, Tailwind CSS, Next.js Fiat onramp service - this is just a mock of Ramp. I can't use any "real" fiat onramp in a testnet environment.

All the tech was quite nicely fitting together because Alchemy is using Viem in the background. However, I was struggling to execute some of the transactions/userOperations. There seems to be an issue with the gas estimation process by Alchemy's bundler (e.g. batch operations, DEX swap) thus I had to limit the scope of the project. (I wanted to perform further operation with the borrowed GHO. e.g. leverage the collateral).