How to perform Permit2 transaction separately

[blnkoff]

Hello. I need to perform permit2 transaction separately, because main data is retrieved from API (chain decoder doesn't work for this chain). Here is my code:

@validate_call()
async def swap(
        self,
        input_token: Token,
        output_token: Token,
        amount_in: TokenAmount,
        slippage: float = 0.5,
        from_wei: bool = True
) -> Receipt:
    wallet = self.wallet

    amount_to_req = amount_in / 10 ** input_token.decimals if from_wei else amount_in

    try:
        quote = await CanoeAPI.quote_swap(
            'usor',
            wallet.public_key,
            'bob',
            input_token.address,
            amount_to_req,
            True,
            output_token.address,
            int(slippage * 100)
        )
    except HTTPStatusError:
        raise InvalidRoute(
            input_token.symbol,
            output_token.symbol,
            'BOB',
            'BOB',
            'OkuTrade'
        )

    signing_request = quote.signing_request

    if signing_request is not None:
        codec = RouterCodec(rpc_endpoint=wallet.network.rpc)

        data, signable_message = codec.create_permit2_signable_message(
            signing_request.token,
            signing_request.amount,
            signing_request.expiration,
            signing_request.nonce,
            signing_request.spender,
            signing_request.deadline,
            wallet.network.chain_id,
        )

        signed_message = Account.from_key(wallet.private_key).sign_message(signable_message)
        encoded_data = codec.encode.chain().permit2_permit(data, signed_message).build(signing_request.deadline)
        tx_params = await wallet.build_tx_params(
            value=0,
            recipient=signing_request.spender,
            raw_data=encoded_data
        )
        await wallet.transact(tx_params, validate_status=True)

    params = await wallet.build_tx_params(
        recipient=quote.to,
        value=quote.value,
        raw_data=quote.data,
        gas=quote.gas
    )

    tx_hash = await wallet.transact(params, validate_status=True)

    return Receipt(
        tx_hash=tx_hash,
        amount_in=quote.amount_in,
        amount_out=quote.amount_out
    )

The value of signing_request is:

SigningRequest(permit2_address='0xCbe9Be2C87b24b063A21369b6AB0Aa9f149c598F' deadline=1735905551 nonce=0 token='0x05D032ac25d322df992303dCa074EE7392C117b9' amount=1461501637330902918203684832716283019655932542975 spender='0x346239972d1fa486FC4a521031BC81bFB7D6e8a4' expiration=1736508551)

But transaction is failed. How I can do it?

[Elnaril]

Hello @blnkoff
Since the permit2 address is not the default one, you should pass it to the method create_permit2_signable_message with the verifying_contract parameter.