Execution reverted when trying pair.getReserves()

Question

Here is the code I've wrote:

Here's one of the TxId with the revert:

And here is a screenshot with the revert message:

Why is the contract reverting if there are reserves, I've triple checked before directly on the pair contract?.

You're passing only 250k gas, is it what the wallet is estimating? Seems quite low — DrGorilla.eth, Dec 27, 2022 at 14:03
I hardcoded it but yes, I used an estimated, I've raised the value, still the same error: bscscan.com/tx/… — Jose Escalona, Dec 27, 2022 at 15:12
Nope, not the same error anymore: now it's reverting with INSUFFICIENT_INPUT_AMOUNT, as you're calling swapExactETH(...) without passing a msg.value — DrGorilla.eth, Dec 27, 2022 at 16:20
oh man, it was that, thanks now it works!, thank you, how do I close the question as answered?, I'm new around... — Jose Escalona, Dec 28, 2022 at 12:56

DrGorilla.eth · Accepted Answer · 2022-12-28 22:10:08Z

It looks like you're facing 2 issues:

the transaction you mention revert without obvious reason, but you might notice the gas left at 0 (and the gas passed as 250k). This is really low (difficult to estimate as it will depend on the token implementation, but see this random swap consuming more than 1 million for instance https://bscscan.com/tx/0xc40e6ba9340e5b0de31034f6e318b408c3b8b5a89ec0c208959d72ab52378bdc)
You use swapExactETHForTokensSupportingFeeOnTransferTokens yet do not pass any value (ie use a msg.value reflecting the amount of eth or bnb you'd like to swap)

Thank you, it's solved now!
– Jose Escalona
Dec 29, 2022 at 12:59 — Jose Escalona, Dec 29, 2022 at 12:59

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