Bob - The Yielder

Cross Chain Yield Aggregator Defi protocol through which user can deposit their underlying asset from the source chain to the destination chain via a single transaction.

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Built at ETHforAll

Connext: Honourable Mentions

Created on 19th February 2023

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Bob - The Yielder

Cross Chain Yield Aggregator Defi protocol through which user can deposit their underlying asset from the source chain to the destination chain via a single transaction.

The problem Bob - The Yielder solves

The problem it solves -

Gives more opportunity to users to increase their yields on underlying assets and more exposure to the market to select from multiple vaults depending upon their risk profile. For example - If the user holds tokenA on chainA and there are vaultA and vaultB on chainA and chainB respectively which provides x and y APY on underlying tokenA then the user can select and deposit to their preferable vault, if x > y then deposit in vaultA else deposit in vaultB.
No need to bridge assets separately to the destination chain before depositing them to the vault as it can be achieved via a single transaction through the protocol.

Challenges we ran into

Challenges we ran into -

Connext SDK connection - we were having a problem integrating connext SDK which provides the relayer fee and slippage to send a cross-chain transaction. We connected with connext team and they helped us out through it eventually we created a separate API service that can provide the relayer fee and slippage by utilizing the connext SDK.
AAVE WETH token on Testnets - AAVE uses different WETH tokens on the testnets from the supported WETH token on Connext Testnets. To tackle this problem we configured our route deposit function to perform the following steps -
1. withdraw ETH from the connext-supported WETH.
2. deposit the withdrawn ETH to AAVE-supported WETH.

Tracks Applied (4)

Polygon: Open Track

Our protocol covers the AAVE vault from multiple EVM chains through which users can bridge and deposit assets to vaults ...Read More

Polygon Technology

The Graph: Best use of existing Subgraph(s)

We have utilized existing subgraphs of AAVE from multiple chains and aggregated the data to provide all the possible opt...Read More

The Graph

Connext: General Track

We have used Connext to bridge the asset and send a message cross-chain in a single transaction (by utilizing xCall and ...Read More

Connext

Aave Grants DAO

We have aggregated multiple chain vaults from AAVE in a single protocol which simplifies the UI as well as builds the cr...Read More

Aave Grants DAO

Technologies used

Solidity

Node.js

AWS Lambda

Python

ethers.js

Connext

AAVE

TypeScript

The Graph

Hardhat

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