Anyway to disable gaslimit buffer?

kaboji · May 27, 2023, 10:49am

Can someone please clarify in what condition does MetaMask auto increase gasLimit by 50% (gas buffer)? Is it for all contract interactions or just erc20 transfers? Also, is there anyway to turn it off, as a user or developer?

more context

As an EVM chain developer, I am facing an issue that our gasLimit can’t be randomly altered. When MetaMask auto increase gasLimit by 50%, it might cause transaction to fail. So I hope MetaMask uses the exact value returned from eth_estimateGas RPC, is there anyway to achieve it?

Thanks for any help in advance!

KBeeTheCapybara · May 28, 2023, 9:30pm

Hi @kaboji -

I’ve inquired about this, will report back what I hear!

KBeeTheCapybara · May 30, 2023, 9:20pm

Hey! Is this your GH ticket?

github.com/MetaMask/metamask-extension

[Bug]: gasLimit auto increased when sending erc20

opened 01:20PM - 27 May 23 UTC

shunjizhan

type-bug type-enhancement team-confirmations-secure-ux

### Describe the bug when I send erc20 with MM, it uses gasLimit which 50% gr…eater than `eth_estimateGas` return. I did some grep around and it seems to be a "feature". https://github.com/MetaMask/metamask-extension/issues/8771#issuecomment-759243828 However this become a bug in our evm network, where gasLimit has some specific encoding, so can't be altered randomly. I hope to make MM use exactly what `eth_estimateGas` return. This 50% increase is a very opinionated operation that's only required for networks that has the gas underestimation issue. So I think there should either be a way to turn it off (make it default behaviour, but optional), or force enable it ONLY for certain networks that really need it. So my question is: - is there a way to turn this feature off? If not, it's a feature request. - can someone please clarify when does MM auto increase gasLimit by 50%? Is it only for token transfer, or is it for all contract calls? If it's only for token transfers, I can probably do some workaround in our network, such as "divide gasLimit by 1.5 before `eth_estimateGas` return when sending erc20" Thanks! ### Steps to reproduce 1. start an evm network with ETH RPC locally 2. connect MM to localhost, try send erc20 3. local RPC logs show that `eth_estimateGas` returns `X` 4. on MM UI we can see `X * 1.5` as gasLimit ### Error messages or log output _No response_ ### Version 10.30.4 ### Build type None ### Browser Chrome ### Operating system MacOS ### Hardware wallet _No response_ ### Additional context _No response_

snwlprd.eth · May 31, 2023, 12:25am

@kaboji
There is an explanation for this. And I’m wondering what error logs do you get when a transaction fails?

Also on Infura says:

system · June 26, 2023, 10:50am

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