How to deposit and redeem AAVE V3 in Solidity (Goerli)?

Learning Center
1

Hello friends.

Either I’m looking badly, or there is not a article on the Internet on how to add a deposit and withdraw it in the third version of aave.

I wrote this code, but it doesn’t work.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IPool } from "@aave/core-v3/contracts/interfaces/IPool.sol";
import { IPoolAddressesProvider } from "@aave/core-v3/contracts/interfaces/IPoolAddressesProvider.sol";
import { IAToken } from "@aave/core-v3/contracts/interfaces/IAToken.sol";

contract Contract {

    function deposit(uint256 wallet_, address asset_, uint256 amount_) public {
        IPoolAddressesProvider provider = IPoolAddressesProvider(address(0xc4dCB5126a3AfEd129BC3668Ea19285A9f56D15D));
        IPool pool = IPool(provider.getPool());

        IERC20(asset_).transferFrom(msg.sender, address(this), amount_);

        if (IERC20(asset_).allowance(address(this), address(pool)) == 0) {
            IERC20(asset_).approve(address(pool), type(uint256).max);
        }

        pool.deposit(asset_, amount_, address(wallet_), 0);
    }
}

asset_ - LINK token 0x326C977E6efc84E512bB9C30f76E30c160eD06FB

2

Please, can someone have a working example of the code?

  1. Deploy contract using Remix 
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

import { IPool } from "@aave/core-v3/contracts/interfaces/IPool.sol";
import { IPoolAddressesProvider } from "@aave/core-v3/contracts/interfaces/IPoolAddressesProvider.sol";
import { IAToken } from "@aave/core-v3/contracts/interfaces/IAToken.sol";

interface IERC20 {
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

contract Deposit {
    
    constructor() {} 
 
    function setDeposit() public returns(uint256) {
        IPoolAddressesProvider provider = IPoolAddressesProvider(address(0xc4dCB5126a3AfEd129BC3668Ea19285A9f56D15D));
        IPool pool = IPool(provider.getPool());
        IERC20(0x326C977E6efc84E512bB9C30f76E30c160eD06FB).transferFrom(msg.sender, address(this), 1*10**10);
        IERC20(0x326C977E6efc84E512bB9C30f76E30c160eD06FB).approve(address(pool), type(uint256).max);
        pool.deposit(0x326C977E6efc84E512bB9C30f76E30c160eD06FB, 1*10**10, 0x0Bf0Dc06F8F1b6AD19F63CE88066F693FaF18e2B, 0);
        return IERC20(0x326C977E6efc84E512bB9C30f76E30c160eD06FB).allowance(address(this), address(pool));
    }
}

  1. Approve 10000000000 LINK token for contract address

  2. Run function setDeposit using Remix

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ERROR

3

Oh my God.
You are using some other LINK token, which is simply impossible to get anywhere.

Faucet for Polygon Mainnet? I do not understand anything.

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image1692×1236 158 KB

4

How to get test tokens for Goerli?

5

Hi @alexbakers the easiest way to get test tokens for Goerli is going to the interface https://app.aave.com/ enabled test mode in the top right corner, and then head to V3 Gorli market

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Then in the header you can find the Faucet link.

if you have further dev queries I think its easier to get response from ecosystem developers in discord at Aave Community (I suggest you to disable DMs in privacy settings there only scammers/spammers would DM you there)

1 Like
6

You are the best.
Thank you.