Retrieve Input Data Using contract.on

[randometh]

Using the contract.on event listener I want to return the long input data string so that I can decode it on my end and get the amountIn and amountOutMin (unless this can be decoded in the call instead of having to do it manually)

Simple sample funtion of what I am trying

contract.on("Transfer", (from, to, data) => { console.log(from, to, data) })

I am not sure if its possible tor return input data like this or what param would be used in order to retrieve it.

[ricmoo]

Check out the event parameter with contract.on("Transfer", (from, to, amount, event) => { console.log(event); }). I think what you are looking for should be there. :)

[randometh]

Wow can't believe I didn't try and log that one thank you!
Also in the return value the _hex would be the amount of token swapped and _isBigNumber: true would be the ETH returned correct? (in a swap exact token function). How could one go about formatting that return to readable numbers?
Thanks again.

[ricmoo]

Do not access the _ variables. Those are meant to be private, but ES3 has limited abilities for that sort of thing. :)

They are BigNumber instances (your console.log may be losing that, but they are. So you can pass them into ethers.utils.formatUnits as normal or use the value.toString() to get it as a decimal. :)

[randometh]

Sadly still not quite what im looking for. I was hoping I could somehow recive the endcoded input data from a transaction so that I could decode it on my end and parse out the amountIn and amountOutMin. It seems like the results im getting from events log has everything except for the encoded input data.

[zemse]

const tx = await provider.getTransaction(event.transactionHash);
tx.data // this is the tx input data