[ZK Stack] Gas estimation issue

[ktarun1419]

Environment

Mainnet

Provide a brief description of the functionality you're trying to implement and the issue you are running into.

Hi i am trying to run test transfer function.

contract TestMWC {
    function testTransfer(
        address to
    ) external payable {
        require(msg.value > 0, "fee required");

        (bool success, ) = payable(to).call{value: msg.value}("");
        require(success, "fee failed.");
    }
}

and this error is coming

 Error: processing response error (body="{\"jsonrpc\":\"2.0\",\"error\":{\"code\":3,\"message\":\"failed to validate the transaction. reason: Validation revert: Account validation error: Not enough gas for transaction validation```
 it only runs when i give 400000 gasLimit which is huge for a transfer function ,FYI i have 0.02 ETH balance


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[ktarun1419]

Hi @bxpana , Could you please check this issue

[bxpana]

Thanks will take a look and get back to you on this.

Regarding the gas fee and refund you can read more about how that works in our docs https://docs.zksync.io/zk-stack/concepts/fee-mechanism.html

[bxpana]

Are you still having an issue with this?

[ktarun1419]

Also why zksync takes extra gas and refund it afterwards

[bxpana]

You can also learn more about how the refunds work on ZKsync here: https://docs.zksync.io/zk-stack/concepts/fee-mechanism#refunds-1