[@0xsequence/relayer] prepareTransactions doesn't work with undeployed wallets

[sondnm]

When calling prepareTransactions from base-relayer for the first transactions of an undeployed sequence wallet, this error was thrown

Uncaught Error: Unable to prepare transactions without a defined nonce

My approach was that I firstly signed the txns using wallet.signTransactions and then passed the attributes from the signed Transactions to prepareTransactions.

I found the issue was in these LOC

    const nonce = readSequenceNonce(...transactions)
    if (!nonce) {
      throw new Error('Unable to prepare transactions without a defined nonce')
    }

The transaction produced by signTransactions has the nonce of 0 instead of BigNumber { 0x0 } hence this check !nonce is true for both undefined and 0 values.

How can I do differently to use this prepareTransactions for the first txns?

[attente]

Thanks for your report, could you please add what version of sequence.js you encountered this error on?

[attente]

Also, can you try calling:

await wallet.sendSignedTransactions(signedTransactions)

directly to see if that resolves your issue?

[sondnm]

could you please add what version of sequence.js you encountered this error on?

I'm tested against v0.42.8

await wallet.sendSignedTransactions(signedTransactions)

This successfully deploy the wallet and execute the given transaction. However I wanted to get the output data to pass to our local relayer in another process instead of executing it immediately. Hence I needed the prepareTransactions output.

[attente]

Can you please try is copying this:

sequence.js/packages/relayer/src/rpc-relayer/index.ts

Lines 189 to 197 in 114d881

	const { to: contract, execute } = await this.prependWalletDeploy(signedTxs)
	const walletAddress = addressOf(signedTxs.config, signedTxs.context)
	const walletInterface = new ethers.utils.Interface(walletContracts.mainModule.abi)
	const input = walletInterface.encodeFunctionData(walletInterface.getFunction('execute'), [
	sequenceTxAbiEncode(execute.transactions),
	execute.nonce,
	execute.signature
	])

. This code should give you to (the "to" address) and input (the calldata).

(Replace this with your BaseRelayer if necessary.)

[sondnm]

Thanks for the suggestion. I already gave it a try and it worked well. I guess the !nonce check with 0 value is a bug with prepareTransactions then.