When transaction is encoded, data of member variable of transaction disappears.

[zuv55]

I am trying to send an ERC20 token using "createWriteOperation"
this is transaction

guard let writeOp = contract.createWriteOperation("transfer", parameters: parameters,extraData: Data())else{
            print("ERROR3");return;
 }
↓print(writeOp.transaction)

Transaction
Type: Legacy
Nonce: 32
Gas price: 30000000000
Gas limit: 100000
To: 0x~
Value: 0
Data: 0x
Resolved chainID: Optional(1)
- Intrinsic chainID: Optional(1)
- Infered chainID: Optional(1)
v: ~
r: ~
s: ~
from: Optional("0x~")
hash: Optional("0x~")

the data certainly exists.

print(transaction.data.toHexString())
→a9059cbb000000000000000000~~

This may represents the transfer method.
But the problem happens when encoding the transaction.

guard let transactionData = writeOp.transaction.encode() else { throw Web3Error.dataError }
print(transactionData.toHexString())
→~f8652.....

Then, when this transaction is decoded using https://flightwallet.github.io/decode-eth-tx/

{
  "nonce": 32,
  "gasPrice": 30000000000,
  "gasLimit": 100000,
  "to": "0x~~",
  "value": 0,
  "data": "",
  "from": "0x~~",
  "r": "~~",
  "v": "~~",
  "s": "~~"
}

"data" of member variable of transaction disappears.

[zuv55]

let result = try await network.eth.send(writeOp.transaction)
print(response)

When this code is executed, there is no response

[zuv55]

Thanks, this issue has been solved !!