package TW.Ethereum.Proto

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Input data necessary to create a signed transaction. Legacy and EIP2718/EIP1559 transactions supported, see TransactionMode.

Used in: THORChainSwap.Proto.SwapOutput

• bytes chain_id = 1

  Chain identifier (uint256, serialized little endian)

• bytes nonce = 2

  Nonce (uint256, serialized little endian)

• TransactionMode tx_mode = 3

  Transaction version selector: Legacy or enveloped, has impact on fee structure. Default is Legacy (value 0)

• bytes gas_price = 4

  Gas price (uint256, serialized little endian) Relevant for legacy transactions only (disregarded for enveloped/EIP1559)

• bytes gas_limit = 5

  Gas limit (uint256, serialized little endian)

• bytes max_inclusion_fee_per_gas = 6

  Maximum optional inclusion fee (aka tip) (uint256, serialized little endian) Relevant for enveloped/EIP1559 transactions only, tx_mode=Enveloped, (disregarded for legacy)

• bytes max_fee_per_gas = 7

  Maximum fee (uint256, serialized little endian) Relevant for enveloped/EIP1559 transactions only, tx_mode=Enveloped, (disregarded for legacy)

• string to_address = 8

  Recipient's address.

• bytes private_key = 9

  The secret private key used for signing (32 bytes).

• optional Transaction transaction = 10

  The payload transaction

• optional UserOperation user_operation = 11

  UserOperation for ERC-4337 wallets

Result containing the signed and encoded transaction.

• bytes encoded = 1

  Signed and encoded transaction bytes.

• bytes v = 2

  The V, R, S components of the resulting signature, (each uint256, serialized little endian)

• bytes r = 3

• bytes s = 4

• bytes data = 5

  The payload part, supplied in the input or assembled from input parameters

• Common.Proto.SigningError error = 6

  error code, 0 is ok, other codes will be treated as errors

• string error_message = 7

  error code description

Transaction (transfer, smart contract call, ...)

Used in: SigningInput

• oneof transaction_oneof

  Payload transfer

  • Transaction.Transfer transfer = 1

  • Transaction.ERC20Transfer erc20_transfer = 2

  • Transaction.ERC20Approve erc20_approve = 3

  • Transaction.ERC721Transfer erc721_transfer = 4

  • Transaction.ERC1155Transfer erc1155_transfer = 5

  • Transaction.ContractGeneric contract_generic = 6

Generic smart contract transaction

Used in: Transaction

• bytes amount = 1

  Amount to send in wei (uint256, serialized little endian)

• bytes data = 2

  Contract call payload data

ERC1155 NFT transfer transaction

Used in: Transaction

• string from = 1

  Source address

• string to = 2

  Destination address

• bytes token_id = 3

  ID of the token (uint256, serialized little endian)

• bytes value = 4

  The amount of tokens being transferred (uint256, serialized little endian)

• bytes data = 5

ERC20 approve transaction

Used in: Transaction

• string spender = 1

  Target of the approval

• bytes amount = 2

  Amount to send (uint256, serialized little endian)

ERC20 token transfer transaction

Used in: Transaction

• string to = 1

  destination address (string)

• bytes amount = 2

  Amount to send (uint256, serialized little endian)

ERC721 NFT transfer transaction

Used in: Transaction

• string from = 1

  Source address

• string to = 2

  Destination address

• bytes token_id = 3

  ID of the token (uint256, serialized little endian)

Native coin transfer transaction

Used in: Transaction

• bytes amount = 1

  Amount to send in wei (uint256, serialized little endian)

• bytes data = 2

  Optional payload data

Transaction type

Used in: SigningInput

• Legacy = 0

  Legacy transaction, pre-EIP2718/EIP1559; for fee gasPrice/gasLimit is used

• Enveloped = 1

  Enveloped transaction EIP2718 (with type 0x2), fee is according to EIP1559 (base fee, inclusion fee, ...)

• UserOp = 2

  EIP4337-compatible UserOperation

ERC-4337 structure that describes a transaction to be sent on behalf of a user

Used in: SigningInput

• string entry_point = 1

  Entry point contract address

• string account_factory = 2

  Account factory contract address

• string account_logic = 3

  Account logic contract address

• string owner = 4

  Public address of the account signer

• bool is_account_deployed = 5

  Whether the smart contract for this address has already been deployed

• bytes pre_verification_gas = 6

  The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata

• bytes verification_gas_limit = 7

  The amount of gas to allocate for the verification step

• bytes paymaster_and_data = 8

  Address of paymaster sponsoring the transaction, followed by extra data to send to the paymaster (empty for self-sponsored transaction)