xrpl-dev-portal/tx_format.md

Transaction Format

All Transactions

Field	Type	Description
Account	String	The unique address of the account that initiated the transaction
Fee	String	Amount of XRP in drops to be destroyed from the sendering account's balance as a fee for redistributing this transaction to the network. (See Transaction Fees
Flags	Unsigned Integer	(Optional) Set of bit-flags for this transaction
LastLedgerSequence	Number	(Optional) Highest valid ledger number that a transaction can appear in. If this is specified, and the transaction is not included by the time the ledger reaches the specified ledger sequence number, then the transaction is considered to have failed and will no longer be valid.
Memos	Array	(Optional) Additional arbitrary information used to identify this transaction. (The exact format and limitations of this field are subject to change.)
PreviousTxnID	String	(Optional) Identifying hash value of the immediately-previous transaction. If provided, that transaction is canceled and this one replaces it. (More clarification needed)
Sequence	Unsigned Integer	The sequence number, relative to the initiating account, of this transaction.
SigningPubKey	String	(Omitted until signed) Hex representation of the public key that corresponds to the private key used to sign this transaction.
SourceTag	Uint32?	(Optional) Allows the creator of transaction to identify the transaction. For payments, specify the DestinationTag for returning funds. (Need more clarification)
TransactionType	String	The type of transaction. Valid types include: Payment, OfferCreate, OfferCancel, TrustSet, and AccountSet.
TxnSignature	String	(Omitted until signed) The signature that verifies this transaction as originating from the account it says it is from

Payments

Field	Type	Description
Amount	String (XRP) Object (Otherwise)	(Payment only) The amount of currency sent as part of this transaction.
Destination	String	(Payment only) The unique address of the account receiving the payment.
DestinationTag	Number(UInt32?)	(Optional) Arbitrary tag that identifies the reason for the payment to the destination.
InvoiceID	String	(Optional) Identifying hash value of another transaction that was an invoice/bill. If provided, mark this transaction as paying that invoice/bill. (More clarification needed)
Paths	Array	(Payment only) Array of arrays, specifying payment paths for this transaction.
SendMax	String/Object	(Payment only) Highest amount of currency this transaction is allowed to cost; this is to compensate for slippage. (See Specifying Currency Amounts)

AccountSet

Field	Type	Description
EmailHash
WalletLocator
WalletSize
MessageKey
Domain
TransferRate
SetFlag
ClearFlag
Signers