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Remove LegacyUTXO selection and remove TransactionMetadata struct so …
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…endpoints more logically implement rosetta specification
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@lazynina
lazynina committed Jan 22, 2024
1 parent a34a8a4 commit bdec9eb
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Showing 4 changed files with 27 additions and 147 deletions.
11 changes: 6 additions & 5 deletions go.mod
View file
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ require (
github.com/deso-protocol/core v1.1.0
github.com/deso-protocol/go-deadlock v1.0.0
github.com/deso-protocol/go-merkle-tree v1.0.0
github.com/dgraph-io/badger/v3 v3.2103.0
github.com/dgraph-io/badger/v3 v3.2103.5
github.com/golang/glog v1.0.0
github.com/mitchellh/go-homedir v1.1.0
github.com/pkg/errors v0.9.1
Expand All @@ -34,7 +34,7 @@ require (
github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
github.com/decred/dcrd/lru v1.1.1 // indirect
github.com/dgraph-io/ristretto v0.1.0 // indirect
github.com/dgraph-io/ristretto v0.1.1 // indirect
github.com/dustin/go-humanize v1.0.0 // indirect
github.com/ethereum/go-ethereum v1.9.25 // indirect
github.com/fatih/color v1.13.0 // indirect
Expand All @@ -57,6 +57,7 @@ require (
github.com/inconshreveable/mousetrap v1.0.0 // indirect
github.com/jinzhu/inflection v1.0.0 // indirect
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
github.com/klauspost/compress v1.12.3 // indirect
github.com/magiconair/properties v1.8.1 // indirect
github.com/mattn/go-colorable v0.1.9 // indirect
github.com/mattn/go-isatty v0.0.14 // indirect
Expand Down Expand Up @@ -87,10 +88,10 @@ require (
github.com/vmihailenco/tagparser v0.1.2 // indirect
github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
go.opencensus.io v0.23.0 // indirect
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
golang.org/x/net v0.0.0-20210614182718-04defd469f4e // indirect
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 // indirect
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
golang.org/x/sys v0.0.0-20220909162455-aba9fc2a8ff2 // indirect
golang.org/x/sys v0.0.0-20221010170243-090e33056c14 // indirect
golang.org/x/text v0.3.6 // indirect
golang.org/x/time v0.0.0-20201208040808-7e3f01d25324 // indirect
golang.org/x/tools v0.1.5 // indirect
Expand Down
13 changes: 13 additions & 0 deletions go.sum
View file
Original file line number Diff line number Diff line change
Expand Up @@ -129,11 +129,15 @@ github.com/deso-protocol/go-merkle-tree v1.0.0/go.mod h1:V/vbg/maaNv6G7zf9VVs645
github.com/dgraph-io/badger/v2 v2.2007.2/go.mod h1:26P/7fbL4kUZVEVKLAKXkBXKOydDmM2p1e+NhhnBCAE=
github.com/dgraph-io/badger/v3 v3.2103.0 h1:abkD2EnP3+6Tj8h5LI1y00dJ9ICKTIAzvG9WmZ8S2c4=
github.com/dgraph-io/badger/v3 v3.2103.0/go.mod h1:GHMCYxuDWyzbHkh4k3yyg4PM61tJPFfEGSMbE3Vd5QE=
github.com/dgraph-io/badger/v3 v3.2103.5 h1:ylPa6qzbjYRQMU6jokoj4wzcaweHylt//CH0AKt0akg=
github.com/dgraph-io/badger/v3 v3.2103.5/go.mod h1:4MPiseMeDQ3FNCYwRbbcBOGJLf5jsE0PPFzRiKjtcdw=
github.com/dgraph-io/ristretto v0.0.3-0.20200630154024-f66de99634de/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
github.com/dgraph-io/ristretto v0.0.3/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
github.com/dgraph-io/ristretto v0.0.4-0.20210309073149-3836124cdc5a/go.mod h1:MIonLggsKgZLUSt414ExgwNtlOL5MuEoAJP514mwGe8=
github.com/dgraph-io/ristretto v0.1.0 h1:Jv3CGQHp9OjuMBSne1485aDpUkTKEcUqF+jm/LuerPI=
github.com/dgraph-io/ristretto v0.1.0/go.mod h1:fux0lOrBhrVCJd3lcTHsIJhq1T2rokOu6v9Vcb3Q9ug=
github.com/dgraph-io/ristretto v0.1.1 h1:6CWw5tJNgpegArSHpNHJKldNeq03FQCwYvfMVWajOK8=
github.com/dgraph-io/ristretto v0.1.1/go.mod h1:S1GPSBCYCIhmVNfcth17y2zZtQT6wzkzgwUve0VDWWA=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 h1:fAjc9m62+UWV/WAFKLNi6ZS0675eEUC9y3AlwSbQu1Y=
Expand Down Expand Up @@ -217,6 +221,7 @@ github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEW
github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
github.com/google/flatbuffers v1.12.0/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
github.com/google/flatbuffers v1.12.1/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
github.com/google/flatbuffers v2.0.0+incompatible h1:dicJ2oXwypfwUGnB2/TYWYEKiuk9eYQlQO/AnOHl5mI=
github.com/google/flatbuffers v2.0.0+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
Expand Down Expand Up @@ -311,6 +316,8 @@ github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvW
github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
github.com/klauspost/compress v1.12.3 h1:G5AfA94pHPysR56qqrkO2pxEexdDzrpFJ6yt/VqWxVU=
github.com/klauspost/compress v1.12.3/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
Expand Down Expand Up @@ -551,6 +558,8 @@ golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897/go.mod h1:LzIPMQfyMNhhGPh
golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d h1:sK3txAijHtOK88l68nt020reeT1ZdKLIYetKl95FzVY=
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
Expand Down Expand Up @@ -607,6 +616,8 @@ golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwY
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210614182718-04defd469f4e h1:XpT3nA5TvE525Ne3hInMh6+GETgn27Zfm9dxsThnX2Q=
golang.org/x/net v0.0.0-20210614182718-04defd469f4e/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
Expand Down Expand Up @@ -661,6 +672,8 @@ golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220909162455-aba9fc2a8ff2 h1:wM1k/lXfpc5HdkJJyW9GELpd8ERGdnh8sMGL6Gzq3Ho=
golang.org/x/sys v0.0.0-20220909162455-aba9fc2a8ff2/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20221010170243-090e33056c14 h1:k5II8e6QD8mITdi+okbbmR/cIyEbeXLBhy5Ha4nevyc=
golang.org/x/sys v0.0.0-20221010170243-090e33056c14/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
Expand Down
121 changes: 8 additions & 113 deletions services/construction_service.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,6 @@ package services
import (
"context"
"encoding/hex"
"encoding/json"
"fmt"
"github.com/btcsuite/btcd/btcec"
"github.com/coinbase/rosetta-sdk-go/server"
Expand All @@ -13,7 +12,6 @@ import (
"github.com/deso-protocol/rosetta-deso/deso"
"github.com/pkg/errors"
"math/big"
"reflect"
"strconv"
)

Expand Down Expand Up @@ -59,21 +57,6 @@ func (s *ConstructionAPIService) ConstructionPreprocess(ctx context.Context, req
if op.Type == deso.InputOpType {
// Add the account identifier to our map
inputPubKeysFoundMap[op.Account.Address] = true

if request.Metadata != nil {
if useLegacyUtxos, exists := request.Metadata["legacy_utxo_selection"]; exists && useLegacyUtxos.(bool) {
txId, txnIndex, err := ParseCoinIdentifier(op.CoinChange.CoinIdentifier)
if err != nil {
return nil, wrapErr(ErrInvalidCoin, err)
}

// Include the inputs in case we use legacy utxo selection
optionsObj.DeSoInputs = append(optionsObj.DeSoInputs, &desoInput{
TxHex: hex.EncodeToString(txId.ToBytes()),
Index: txnIndex,
})
}
}
} else if op.Type == deso.OutputOpType {
// Parse the amount of this output
amount, err := strconv.ParseUint(op.Amount.Value, 10, 64)
Expand Down Expand Up @@ -164,10 +147,6 @@ func (s *ConstructionAPIService) ConstructionMetadata(ctx context.Context, reque
return nil, wrapErr(ErrUnableToParseIntermediateResult, err)
}

if options.LegacyUTXOSelection && s.node.GetBlockchain().BlockTip().Height >= s.node.Params.ForkHeights.BalanceModelBlockHeight {
return nil, ErrLegacyUtxoSelectionNotAllowed
}

// Determine the network-wide feePerKB rate
feePerKB := mempoolView.GlobalParamsEntry.MinimumNetworkFeeNanosPerKB
if feePerKB == 0 {
Expand Down Expand Up @@ -209,35 +188,9 @@ func (s *ConstructionAPIService) ConstructionMetadata(ctx context.Context, reque
}

var fee uint64

// Support legacy utxo selection
if options.LegacyUTXOSelection {
txn.TxInputs = []*lib.DeSoInput{}
for _, input := range options.DeSoInputs {
txId, err := hex.DecodeString(input.TxHex)
if err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

txn.TxInputs = append(txn.TxInputs, &lib.DeSoInput{
TxID: *lib.NewBlockHash(txId),
Index: input.Index,
})
}

txnBytes, err := txn.ToBytes(true)
if err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

// Override fee calculation
txnSize := uint64(len(txnBytes) + MaxDERSigLen + FeeByteBuffer)
fee = feePerKB * txnSize / BytesPerKb
} else {
_, _, _, fee, err = s.node.GetBlockchain().AddInputsAndChangeToTransaction(txn, feePerKB, s.node.GetMempool())
if err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}
_, _, _, fee, err = s.node.GetBlockchain().AddInputsAndChangeToTransaction(txn, feePerKB, s.node.GetMempool())
if err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

// If the caller specified a partial ID, apply it to the transaction's nonce (as long as the nonce exists).
Expand Down Expand Up @@ -286,7 +239,6 @@ func (s *ConstructionAPIService) ConstructionMetadata(ctx context.Context, reque
metadata, err := types.MarshalMap(&constructionMetadata{
FeePerKB: feePerKB,
DeSoSampleTxnHex: hex.EncodeToString(desoTxnBytes),
LegacyUTXOSelection: options.LegacyUTXOSelection,
NoncePartialID: options.NoncePartialID,
NonceExpirationBlockHeight: options.NonceExpirationBlockHeight,
NonceExpirationBlockHeightOffset: options.NonceExpirationBlockHeightOffset,
Expand Down Expand Up @@ -338,19 +290,8 @@ func (s *ConstructionAPIService) ConstructionPayloads(ctx context.Context, reque

unsignedBytes := merkletree.Sha256DoubleHash(desoTxnBytes)

unsignedTxn, err := json.Marshal(&transactionMetadata{
Transaction: desoTxnBytes,
InputAmounts: inputAmounts,
LegacyUTXOSelection: metadata.LegacyUTXOSelection,
NoncePartialID: metadata.NoncePartialID,
NonceExpirationBlockHeight: metadata.NonceExpirationBlockHeight,
NonceExpirationBlockHeightOffset: metadata.NonceExpirationBlockHeightOffset,
TxnFeeNanos: metadata.TxnFeeNanos,
FeeRateNanosPerKB: metadata.FeeRateNanosPerKB,
})

return &types.ConstructionPayloadsResponse{
UnsignedTransaction: hex.EncodeToString(unsignedTxn),
UnsignedTransaction: hex.EncodeToString(desoTxnBytes),
Payloads: []*types.SigningPayload{
{
AccountIdentifier: signingAccount,
Expand All @@ -367,13 +308,8 @@ func (s *ConstructionAPIService) ConstructionCombine(ctx context.Context, reques
return nil, wrapErr(ErrInvalidTransaction, err)
}

var unsignedTxn transactionMetadata
if err := json.Unmarshal(unsignedTxnBytes, &unsignedTxn); err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

desoTxn := &lib.MsgDeSoTxn{}
if err = desoTxn.FromBytes(unsignedTxn.Transaction); err != nil {
if err = desoTxn.FromBytes(unsignedTxnBytes); err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

Expand All @@ -389,19 +325,8 @@ func (s *ConstructionAPIService) ConstructionCombine(ctx context.Context, reques
return nil, wrapErr(ErrInvalidTransaction, err)
}

signedTxn, err := json.Marshal(&transactionMetadata{
Transaction: signedTxnBytes,
InputAmounts: unsignedTxn.InputAmounts,
LegacyUTXOSelection: unsignedTxn.LegacyUTXOSelection,
NoncePartialID: unsignedTxn.NoncePartialID,
NonceExpirationBlockHeight: unsignedTxn.NonceExpirationBlockHeight,
NonceExpirationBlockHeightOffset: unsignedTxn.NonceExpirationBlockHeightOffset,
TxnFeeNanos: unsignedTxn.TxnFeeNanos,
FeeRateNanosPerKB: unsignedTxn.FeeRateNanosPerKB,
})

return &types.ConstructionCombineResponse{
SignedTransaction: hex.EncodeToString(signedTxn),
SignedTransaction: hex.EncodeToString(signedTxnBytes),
}, nil
}

Expand Down Expand Up @@ -429,13 +354,8 @@ func (s *ConstructionAPIService) ConstructionParse(ctx context.Context, request
return nil, wrapErr(ErrInvalidTransaction, err)
}

var metadata transactionMetadata
if err := json.Unmarshal(txnBytes, &metadata); err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

desoTxn := &lib.MsgDeSoTxn{}
if err = desoTxn.FromBytes(metadata.Transaction); err != nil {
if err = desoTxn.FromBytes(txnBytes); err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

Expand All @@ -446,27 +366,7 @@ func (s *ConstructionAPIService) ConstructionParse(ctx context.Context, request
numOps := int64(0)
var operations []*types.Operation

for _, inputAmount := range metadata.InputAmounts {
operations = append(operations, &types.Operation{
Type: deso.InputOpType,
OperationIdentifier: &types.OperationIdentifier{
Index: numOps,
},
Account: signer,
Amount: &types.Amount{
Value: inputAmount,
Currency: s.config.Currency,
},
})
numOps += 1
}

for _, output := range desoTxn.TxOutputs {
// Skip the change output when NOT using legacy utxo selection
if !metadata.LegacyUTXOSelection && reflect.DeepEqual(output.PublicKey, desoTxn.PublicKey) {
continue
}

op := &types.Operation{
OperationIdentifier: &types.OperationIdentifier{
Index: numOps,
Expand Down Expand Up @@ -512,13 +412,8 @@ func (s *ConstructionAPIService) ConstructionSubmit(ctx context.Context, request
return nil, wrapErr(ErrInvalidTransaction, err)
}

var txn transactionMetadata
if err := json.Unmarshal(txnBytes, &txn); err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

desoTxn := &lib.MsgDeSoTxn{}
if err = desoTxn.FromBytes(txn.Transaction); err != nil {
if err = desoTxn.FromBytes(txnBytes); err != nil {
return nil, wrapErr(ErrInvalidTransaction, err)
}

Expand Down
29 changes: 0 additions & 29 deletions services/types.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -9,10 +9,6 @@ type preprocessOptions struct {
// The outputs are used to compute the fee estimate in the metadata portion.
DeSoOutputs []*desoOutput `json:"deso_outputs"`

// Allow legacy manual selection of UTXOs
LegacyUTXOSelection bool `json:"legacy_utxo_selection"` // Deprecated
DeSoInputs []*desoInput `json:"deso_inputs"` // Deprecated

// Values used to set TxnNonce. Note that only one of
// NonceExpirationBlockHeight and NonceExpirationBlockHeightOffset
// should be specified. If both are specified,
Expand Down Expand Up @@ -62,31 +58,6 @@ type constructionMetadata struct {
// final transaction.
DeSoSampleTxnHex string `json:"deso_sample_txn_hex"`

// Allow legacy manual selection of UTXOs
LegacyUTXOSelection bool `json:"legacy_utxo_selection"` // Deprecated

// Values used to set TxnNonce. Note that only one of
// NonceExpirationBlockHeight and NonceExpirationBlockHeightOffset
// should be specified. If both are specified,
// NonceExpirationBlockHeightOffset is used.
NoncePartialID uint64 `json:"nonce_partial_id"`
NonceExpirationBlockHeight uint64 `json:"nonce_expiration_block_height"`
NonceExpirationBlockHeightOffset uint64 `json:"nonce_expiration_block_height_offset"`

// Values used to specify the fee for a transaction. Note that
// only one of FeeRateNanosPerKB and TxnFeeNanos should be specified.
// If both are specified, FeeRateNanosPerKB is used.
FeeRateNanosPerKB uint64 `json:"fee_rate_nanos_per_kb"`
TxnFeeNanos uint64 `json:"txn_fee_nanos"`
}

type transactionMetadata struct {
Transaction []byte `json:"transaction"`
InputAmounts []string `json:"input_amount"`

// Allow legacy manual selection of UTXOs
LegacyUTXOSelection bool `json:"legacy_utxo_selection"` // Deprecated

// Values used to set TxnNonce. Note that only one of
// NonceExpirationBlockHeight and NonceExpirationBlockHeightOffset
// should be specified. If both are specified,
Expand Down

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