Relay x ERC-4337 smart wallets issue

[15august]

Hi! I have problem with exectuion quote with privy evm smart wallets.

Setup:

• privy smart wallets, Kernel type(zero dev)
• pimlico paymaster and bundler
• relay sdk

my code:
https://gist.github.com/15august/0eb9b1660e2942df2ffff63ba99e717b

situation:
when i trying execute code, I get the error of execution:
https://gist.github.com/15august/93ffccb726b63915c0c11e60aee2f659

---

P.s before i tried code with value

const result = await smartWallet.sendTransaction({
          to: txData.to as `0x${string}`,
          data: (txData.data as `0x${string}`) || '0x',
           //value <-
          // Gas fields are typically handled by the bundler/paymaster
        });

but pimlico bundler raised error, value should be 0 on erc20 transfers, since they only cover gas
So now, I removed value and/or tried to sety it always 0

[ted-palmer]

Hm this a little hard to debug, but it appears to be an issue with how you're sending transactions via privy smart wallets and less of a relay-kit specific issue. Can you log txData in your handleSendTransactionStep method so we can confirm the data from the quote looks ok? Also I think you should be passing in the txData.value from the relay quote into the sendTransaction method like so:

value: hexToBigInt((txData.value) as '0x${string}')

If you can share a code sandbox, I can take a closer look 🙂

[15august]

@ted-palmer here is TxData from handleSendTransactionStep

{"chainId": 8453, "data": "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", "from": "0x988B1766ec2dd121d1E60eB3c0e92f49467E1234", "maxFeePerGas": "13904892", "maxPriorityFeePerGas": "1076152", "to": "0xbbbfd134e9b44bfb5123898ba36b01de7ab93d98", "value": "13976321271"}

about this: value: hexToBigInt((txData.value) as '0x${string}')

i tried add this, but i'm getting another error from Pimlico bundler, like 'no funds'

[15august]

seems weird why value non zero

here is for example working example: with another SDK not privy wallets. for the same route

{"chainId": 8453, "data": "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", "from": "0x52Ba00dF2fadE6d4AD078F5FcaD6b782dfD9BEb9", "gas": "420582", "maxFeePerGas": "6330054", "maxPriorityFeePerGas": "1002873", "to": "0xbbbfd134e9b44bfb5123898ba36b01de7ab93d98", "value": "0"}

here is value is 0, and different functions called during the process, idk why there in my previous example txData is different for the same approach

[ted-palmer]

Does the privy wallet have enough balance to do the tx?

[15august]

@ted-palmer USDC? yes

ETH-gas should be covered by paymaster

[ted-palmer]

Have you checked out our ERC-4337 docs? https://docs.relay.link/guides/erc-4337 I believe you need to add the userOperationGasOverhead parameter to your quote request

[15august]

@ted-palmer i just found the error and reason
https://dashboard.tenderly.co/shared/simulation/3a87ac8f-32cc-4f0f-aa71-1ad001261055

when im adding

appFees: [{ recipient: "0x988B1766ec2dd121d1E60eB3c0e92f49467E1234", fee: "50" }]

it's stop working, i just removed and it started working

btw, about userOperationGasOverhead it's not supported by sdk

[15august]

@ted-palmer how can i fix appFees?

[ted-palmer]

Let me pass this along to our backend team. Mind explaining your use case some more? Do you want all fees collected in ETH?

[15august]

@ted-palmer probably will not be possible to collect ETH?

e.g if I sender(user) and i have only USDC on my balance(not other tokens, even no ETH), so when this end user doing swap I as an owner of the wallet want receive fee from that swap, And since user have only USDC I guess we can get USDC?

or it work differently?

[ted-palmer]

Correct, the fees are earned in different currencies depending on the swap that the user performed. Can you confirm the wallet mentioned above has enough USDC to do that tx including the app fees?

[15august]

@ted-palmer yes, wallet has enough USDC
here is the wallet https://basescan.org/address/0x988B1766ec2dd121d1E60eB3c0e92f49467E1234

i doing swap for 0.1 usdc
with appfees it's not working, without - works

[15august]

maybe it trying to spend app fees from another wallet, not from user's one?

[ted-palmer]

We believe the issue is related to how Relay app fees are currently collected for same-chain swaps. At the moment, the fee is taken in the gas token rather than the input token (USDC), which can cause issues in setups like yours. We're planning to change this soon to improve compatibility

[15august]

@ted-palmer thanks for investigation

it's ok if you improve that, it will be our revenue stream.
When do you think you can make this? ETA? approx

2. btw, do you know something about another issue-thread here related to Solana? I have issue and still didnt fix it

thanks