📊 OptiFinance Subgraph

The OptiFinance Subgraph is an indexing solution for blockchain data, allowing efficient querying of events and transactions from smart contracts deployed on the Base Sepolia testnet. This subgraph powers the analytics and monitoring features of the OptiFinance platform.

🚀 Features

• Indexes key DeFi interactions, including deposits, withdrawals, swaps, and staking.
• Tracks real-time portfolio changes across multiple DeFi protocols.
• Supports multiple staking protocols like Uniswap, Aave V3, Compound V3, Stargate V3, and USDX Money.
• Provides fast and structured data access for frontend applications.

🔧 Setup & Deployment

1️⃣ Install Dependencies

Ensure you have Node.js and Graph CLI installed:

npm install -g @graphprotocol/graph-cli

2️⃣ Clone the Repository

git clone https://github.com/your-repo/opti-finance-subgraph.git
cd opti-finance-subgraph

3️⃣ Generate & Build

yarn codegen
yarn build

4️⃣ Deploy to The Graph

Replace <YOUR_SUBGRAPH_NAME> with your subgraph identifier:

graph auth --product hosted-service <ACCESS_TOKEN>
graph deploy --product hosted-service <YOUR_GITHUB_USERNAME>/<YOUR_SUBGRAPH_NAME>

📜 Schema & Data Sources

The subgraph listens to events emitted by the following smart contracts on Base Sepolia:

🏦 OptiFinance Smart Contract

• Address: 0x9F7b08e2365BFf594C4227752741Cb696B9b6E71
• Indexed Events:
  • Deposit
  • OwnershipTransferred
  • Paused
  • Swap
  • Unpaused
  • Withdrawal

💰 Staking Contracts

Protocol	Address
Uniswap	0xa42A86906D3FDfFE7ccc1a4E143e5Ddd8dF0Cf83
Aave V3	0x5dC10711C60dd5174306aEC6Fb1c78b895C9fA5A
Compound V3	0xD1b1954896009800dF01b197A6E8E1d98FF44ae8
Stargate V3	0x0CAf83Ef2BA9242F174FCE98E30B9ceba299aaa3
USDX Money	0x6c36eD76d3FF0A7C0309aef473052b487895Fadf

📌 Stablecoin & Token Contracts

Token	Address
USDC	0x0E8Ac3cc5183A243FcbA007136135A14831fDA99
USDT	0xbF1876d7643a1d7DA52C7B8a67e7D86aeeAA12A6
DAI	0x134C06B12eA6b1c7419a08085E0de6bDA9A16dA2
WETH	0xD1d25fc5faC3cd5EE2daFE6292C5DFC16057D4d1
UNI	0x1eaC9BB63f8673906dBb75874356E33Ab7d5D780

🛠 Event Handlers

Each contract has corresponding event handlers for listening to key transactions. For example, the Deposit event in OptiFinance contract is handled by:

export function handleDeposit(event: DepositEvent): void {
  let entity = new Deposit(
    event.transaction.hash.concatI32(event.logIndex.toI32())
  )
  entity.token = event.params.token
  entity.from = event.params.from
  entity.to = event.params.to
  entity.amount = event.params.amount

  entity.blockNumber = event.block.number
  entity.blockTimestamp = event.block.timestamp
  entity.transactionHash = event.transaction.hash

  entity.save()
}

📡 Querying the Subgraph

Once deployed, you can query the indexed data using GraphQL. Example query to fetch all deposits:

{
  deposits {
    id
    user
    amount
  }
}

📌 Notes

• This subgraph is deployed on Base Sepolia, a Layer 2 testnet.
• Mock tokens are used for testing during the hackathon.
• Security enhancements and optimizations are ongoing.

📝 License

This project is licensed under the MIT License.

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💡 Contribute & Connect: If you're interested in contributing or discussing improvements, feel free to open an issue or reach out! 🚀