Building-a-Decentralized-Lending-Dapp-with-Solidity

Building a simple Decentralized Lending Dapp with Solidity to deploy on any EVM network

1. Create a simple ERC-20 token that acts as the lending pool’s currency.

2. Write the lending pool contract where users can:

• Deposit tokens to earn interest.
• Borrow tokens against their deposits.
• Withdraw tokens plus any interest accrued.

3. Deploy the contracts on a local testnet, interact via a simple frontend, and see how deposits and withdrawals work.

Step 1: ERC-20 Token Contract

We need an ERC-20 token to serve as the lending pool’s base currency. This token will be minted and distributed to simulate real-world deposits.

Step 2: Lending Pool Contract

Next, we create a lending pool contract. This contract lets users deposit and withdraw tokens and tracks the total amount deposited. It also calculates a simple interest rate over time.

Step 3: Deployment and Frontend Integration

1. Deploy the contracts:

• First deploy the LendingToken contract and note its address.
• Then deploy the LendingPool contract, passing the LendingToken address to its constructor.

2. Frontend integration:

• Use a simple React app to connect a wallet (e.g., MetaMask).
• Add a “Deposit” button that calls deposit(amount) on the lending pool contract.
• Add a “Withdraw” button that calls withdraw() on the lending pool contract.
• Display the user’s current balance and the accrued interest.