Hi guys! Quick question (Would appreciate DMs). I'm trying to do a simple contract when I can deposit X amount of my simple erc20 token, but I receive a remix error (transfer amount exceeds allowance). Can anyone give me some hint of what I'm doing wrong please?

Jul 9, 2021, 6:02 PM

Re-read the error message again transfer amount exceeds allowance

Jul 9, 2021, 6:12 PM

I already checked, I have those tokens. Checked using the contract as well

Jul 9, 2021, 6:13 PM

You can't call approve and transferFrom in the same block of codes

Did you approve tokens from the sender's account to the Contract?

Jul 9, 2021, 6:14 PM

Doing an "allow()" method to execute before would work? Still not working this way

Jul 9, 2021, 6:14 PM

There's an approve function in your token contract. Call the function passing in the
contractB address
and
amount to deposit

Then try the deposit function again

Jul 9, 2021, 6:16 PM

Thank you, I'm going to try it

It's not what I did here?

Jul 9, 2021, 6:17 PM

Lol it won't work because the actual address calling token.approve is contractB

Jul 9, 2021, 6:18 PM

I should change address(this) for msg.sender?

Jul 9, 2021, 6:18 PM

Just use the step above and your deposit should work

Jul 9, 2021, 6:19 PM

Still same thing, maybe I'm not understand any concept. Can I DM you maybe? I can pay you a beer in BUSDs 💪

Jul 9, 2021, 6:21 PM

👆🏼

Jul 9, 2021, 6:21 PM