SolidityFoundryChainlinkThe Graph

DeFi Aggregator

Multi-chain yield optimization platform executing strategies across Ethereum, Polygon, and Arbitrum.

2024

Objective

Maximize user returns while minimizing gas costs via multi-chain routing.

Technical Challenges

1.Managing state consistency across multiple networks.
2.Aggregating real-time APY data from diverse protocols.
3.Handling bridge latency and slippage.

Outcomes & Impact

Achieved 15-20% higher yields compared to single-chain strategies.
Reduced user transaction overhead by 60% via batched operations.

Implementation

defi-aggregator.sol

1// Cross-Chain Bridge Abstraction
2function bridgeAssets(
3    address token,
4    uint256 amount,
5    uint16 destChain,
6    bytes calldata payload
7) internal {
8    if (bridgeType == STARGATE) {
9        stargateRouter.swap{value: msg.value}(
10            destChain, srcPoolId, destPoolId, 
11            payable(msg.sender), amount, minAmount, 
12            IStargateRouter.lzTxObj(0, 0, "0x"), payload, bytes("")
13        );
14    } else if (bridgeType == ACROSS) {
15        spokePool.deposit(
16            token, destChain, amount, relayerFee, 
17            msg.sender, block.timestamp, 
18            fillDeadline, 0, payload
19        );
20    }
21}

Previous Project

Digital Cash