How to recover tokens sent to the token contract instead of a wallet?

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1

Hello,

I am playing around with a token smart contract on Mumbai net. I asked a friend to send back some of them and instead, he sent them to the contract.

The tokens are stuck in the contract here:

I have Approve and transferFrom, allowance, burnFrom etc. functions but they don't seem to work.

everything I try it says ',,,amount exceeds allowance'

Any idea?

Cheers

2

Tokens sent to the token contract are lost unless there is a function specifically designed to retrieve them.

3

Wouldnt be possible to use TransferFrom function to retrieve them somehow?

Any idea how this function should look like? I see this is a common problem and it would be useful to have something like that in the contract

4

It is not possible to use transferFrom unless the contract is able to approve someone to execute the transferFrom.

You can designate a "recovery" address where any tokens sent can be transferred to, and then define a function like:

function recover(IERC20 token) public {
    SafeERC20.safeTransfer(token, recoveryAddress, token.balanceOf(address(this)));
}
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