Out of gas

[shan-c]

I've been using stargateSigningClient.simulate method for gas estimation. This estimated gas from this method is never sufficient. Especially for osmosis, there is huge gap in estimation.

const sendMsg: MsgSendEncodeObject = {
typeUrl: '/cosmos.bank.v1beta1.MsgSend',
value: {
fromAddress: senderAddress,
toAddress: address,
amount: [
{
denom,
amount,
},
],
},
};
const simulation = await signingClient.simulate(senderAddress, [sendMsg], '');

[webmaster128]

This is expected. You need to add a multiplier to the result of simulate. 1.3 (i.e. +30%) used to be a good choice for a long time. Due to some changes in the SDK it is often not enough anymore and we now used 1.4 by default.

[shan-c]

But for osmosis chain, the gap is huge, its like 10x

[ValarDragon]

For osmosis this has now been fixed if the ful node your interacting with is v21.1.0 or higher in version. (v21.1.2 recommended)

The problem was, there has always been a buggy code path in the SDK + Osmosis for gas simulation, and that buggy code path had more gas in it. This fix correctly makes that code path get gas tracked.

[shan-c]

Can you suggest any updated rpc node ?