Hello friends
Suppose I have some USDT ERC20 in my Metamsk wallet.
Metamsk asks me for ETH to transfer USDT.
Is it possible that by writing a smart contract, I will pay the fee in USDT and not transfer the ETH to Metamsk Wallet?
In fact, I want to pay the fee with the USDT in the Metamsk bag.
I would appreciate any help.
Thank You
It's impossible.
but we can write a code that swaps your USDT with ETH and use ETH for gas fee.
Thank you for the answer.
please explain more.
If possible, refer me to an example.
no example now.
but you need to write a code with your private key to interact with uniswap router.
Should I use this document?
I did some searching.
Can this method be used to solve the problem?
Does anyone help me here? 
Does anyone help me here?