How to add ERC20 token value to a smart contract?

Smart Contracts
1

Hi. I've got a basic contract that all features work on except the deposit into the contract. The problem is I don't get any error information from Remix when I execute the depositTokenAmount function. So not sure how to debug it or figure out what is wrong?

Testnet Steps:

  1. Load wallet with 100000000 USDC ($100.00)
  2. Execute getTokenBalance -> 0. Successful
  3. Execute approveTokenAmount with 1000000 ($1.00). Successful
  4. Execute depositTokenAmount with 500000 ($0.50). Failed. No error generated.
  5. Scratch head. :slight_smile:
creation of Test pending...

[block:214904075 txIndex:-]

from: 0xf60...70283

to: Test.(constructor)

value: 0 wei

data: 0x608...90033

logs: 0

hash: 0x4c1...1772d

Debug

call to Test.getTokenBalance

*CALL* [call]

from: 0xf6087795a815ef9d9ebac667ada2600469c70283

to: Test.getTokenBalance(address)

data: 0x3ae...e5831

Debug

transact to Test.approveTokenAmount pending ...

[block:214904077 txIndex:-]

from: 0xf60...70283

to: Test.approveTokenAmount(address,uint256) 0x059...137da

value: 0 wei

data: 0x255...f4240

logs: 1

hash: 0x256...3b357

Debug

transact to Test.depositTokenAmount pending ...

[block:214904078 txIndex:-]

from: 0xf60...70283

to: Test.depositTokenAmount(address,uint256) 0x059...137da

value: 0 wei

data: 0x818...f4240

logs: 0

hash: 0x6c4...ecf01

Debug

|status|0x0 Transaction mined but execution failed|
| --- | --- |
|transaction hash|0xb6a005889ddb64dda4c6ae96a7c1381f323c71975709ac5719a6f578c25f9734|
|block hash|0x6c44290320ef1f23126e41e1287c42b062c0b7846bd1d566cf983ff55c3ecf01|
|block number|214904078|
|from|0xf6087795a815ef9d9ebac667ada2600469c70283|
|to|Test.depositTokenAmount(address,uint256) 0x059f4c4ecde9a555b6bc59c748908138a09137da|
|gas|999000 gas|
|transaction cost|37921 gas|
|input|0x818...f4240|
|decoded input|{ "address _tokenAddress": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831", "uint256 _amount": "1000000" }|
|decoded output|-|
|logs|[]|

Contract:

// contracts/Test.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import 'https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol';
import 'https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/utils/SafeERC20.sol';

contract Test {
    address payable owner;

    constructor()
    {
        owner = payable(msg.sender);
    }

    /**
        Testing basic ERC20 token functions.
     */

    function getTokenBalance(
        address _tokenAddress
    ) external view returns (uint256) {
        return IERC20(_tokenAddress).balanceOf(address(this));
    }

    function approveTokenAmount(
        address _tokenAddress,
        uint256 _amount
    ) external onlyOwner {
        IERC20(_tokenAddress).approve(msg.sender, _amount);
    }

    function depositTokenAmount(
        address _tokenAddress, 
        uint256 _amount
    ) external onlyOwner {
      IERC20 token = IERC20(_tokenAddress);
      uint256 allowance = token.allowance(
                                msg.sender,
                                address(this)
      );
      require(allowance >= _amount, 'msg.sender allowance too low.');
      token.transferFrom(
        msg.sender,
        address(this),
        _amount
      );
    }

    function withdrawTokenBalance(
        address _tokenAddress
    ) external onlyOwner {
        IERC20(_tokenAddress).transfer(
            msg.sender,
            IERC20(_tokenAddress).balanceOf(address(this))
        );
    }

    modifier onlyOwner() {
        require(
            msg.sender == owner,
            "Only the contract owner can call this function"
        );
        _;
    }

    receive() external payable {}
}